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Webtec Products Limited
Quality Hydraulic Components from the Webtec Range
Hydraulic Flow
Control Valves
Quality Hydraulic Components from the Webtec Range
CONTENTS
DESCRIPTION PAGE No.
ILFC Series Fixed Flow Pressure Compensated Control Valve 1
VFC SeriesVariable Flow Pressure Compensated Control Valve 3
WPD SeriesFixed Priority Flow Dividers 5
RFC Series Adjustable Throttle Valve 7
FV 120 Series Fixed Priority Flow Dividers 9
FV 126 SeriesFixed Priority Flow Dividers 11
FV 200 Series Proportional Flow Dividers 13
VFD 50 Series Variable Priority Flow Dividers 15
2FV2V SeriesVariable Priority Flow Dividers 17
Continued over page
Quality Hydraulic Components from the Webtec Range
CONTENTS
DESCRIPTION PAGE No.
2FV2V Series Variable Priority Flow Divider with Motor Drive 21
FDM SeriesVariable Priority Flow Divider with Remote Proportional Control 23
2FV2V Series Manifold Mounted Variable Priority Flow Divider 25
MM80 Series Manifold Mounted Variable Priority Flow Divider 27
FVDVRV SeriesVariable Priority Flow Divider with Diverter Valve 29
FDC 60 SeriesFlow Divider Combiner 31
Continued from previous page
Quality Hydraulic Components from the Webtec RangeQuality Hydraulic Components from the Webtec Range
1
ILFC Series
Fixed Flow PressureCompensatedControl Valve
FLOW CONTROL VA LVES maintain the flow rate ofhydraulic fluid to a specified value.
Applications include hydraulic cylinders required toextend or retract at constant speeds and hydraulicmotors required to rotate at constant speeds. Whenused with a fixed delivery pump the excess flow is by-passed across a relief valve.
SpecificationsMaximum Pressure:
210 bar (working)
Maximum Flow:16 lpm
Porting:BSP & NPT - see Table 1
Material:Exterior parts; Chemically blacked steel Interior parts; steel spool in aluminium sleeve
Weight:see Table 1
Symbol
Features
● Pressure compensated to ensure a constantflow rate under varying pressures.
● Pre-set in factory to customer requirements atany flow rate between 1.5 lpm - 16 lpm.
● Uncontrolled flow is permitted in reversedirection.
● Chemically blacked finished.
2
Quality Hydraulic Components from the Webtec Range
ORDERING CODES Typical Code ILFC 16 5 J
ILFC - In-line (fixed) Flow Control
Flow Size (see Table 1)
Factory Preset Flow Rating in lpm
Port Thread (see Table 2)
Table 1: Dimensions
Table 2
Code Flow Range Port A B C A/F Weight kg
Size Thread
14 1.5 - 14 lpm 1/4” BSP 64 57 25 22 0.20
16 1.5 - 16 lpm 3/8” BSP 77 57 25 22 0.20
16 1.5 - 16 lpm 3/8” NPT 77 57 25 22 0.20
A
C
BA/F
INSTALLATION DETAILSDimensions in millimetres
Controlled FlowUncontrolled Flow
SectionView
* Other threads available to special order.
Code Thread
J BSP
A NPT
3
VFC Series
Variable FlowPressureCompensatedControl Valve
VARIABLE FLOW CONTROL VA LV E S maintain theflow rate of hydraulic fluid to a selected value.
Applications include hydraulic cylinders requiringconstant extension or retraction speeds and hydraulicmotors requiring constant rotational speeds. Whenused with a fixed delivery pump the excess flow is by-passed across a relief valve.
SpecificationsMaximum Pressure:
210 bar (working)
Maximum Flow:55 lpm
Porting:BSP & NPT (see Table 1)
Material:steel components in an aluminium body
Weight:see Table 1
Symbol
Features● Pressure compensated to ensure a constant flow
rate under varying pressures.
● Knurled knob enables fast, accurate adjustmentof flow rate in one direction (under pressure) from1.5 lpm to 55 lpm.
● Knurled knob can be locked in position by a grub(set) screw and provides weatherproof sealing toprevent the adjusting screw from corroding orseizing.
● Free (uncontrolled) flow is permitted in reversedirection.
Quality Hydraulic Components from the Webtec Range
4
Quality Hydraulic Components from the Webtec Range
ORDERING CODES Typical Code VFC 20 K J
VFC - Variable Flow Control
Flow Size (Table 1)
Adjustment Method (knurled knob)
Porting (Table 2)
Table 1: Dimensions
Table 2
BE
H
F
A
D
C
Knurled KnobAdjustment
Controlled Flow
Free Flow
INSTALLATION DETAILSDimensions in millimetres
Locking Screw
Code Flow Range Porting A B C D E F H Weight
(lpm) Size Thread (kg)
20 1.5 - 20 1/4” BSP 59.9 17.5 32.8 25.4 44.4 84.8 28.4 0.2
40 2.0 - 40 3/8” BSP 74.6 23.8 43.9 35.1 57.1 107.1 38.1 0.4
55 2.0 - 55 1/2” BSP 77.7 23.8 47.5 38.1 63.5 119.1 41.1 0.5
20 1.5 - 20 1/4” NPT 59.9 17.5 32.8 25.4 44.4 84.8 28.4 0.2
40 2.0 - 40 3/8” NPT 74.6 23.8 43.9 35.1 57.1 107.1 38.1 0.4
55 2.0 - 55 1/2” NPT 77.7 23.8 47.5 38.1 63.5 119.1 41.1 0.5
* Other threads available to special order.
Code Thread
J BSP
A NPT
5
WPD Series
Fixed PriorityFlow Dividers
P R I O R I T Y TYPE FLOW DIVIDERS split a single inputflow into a ‘Priority’ (regulated) flow and a ‘By- Pass’(excess) flow which can be returned directly to the oilreservoir or used to power a second system. This oftendispenses with the need for another pump to operate asecond system.
A typical application on mobile machinery is to use the‘ P r i o r i t y ’ (regulated) flow for power steering and the‘ B y - P a s s ’ (excess) flow for an implement or lift circuit.This ensures the power steering is satisfied first tokeep the steering speed constant.
SpecificationsMaximum Pressure:
140 bar
Total Flow Capacity:113 lpm
Regulated Flow Capacity:See Table 1
Porting:Inlet and By-Pass 3/4” BSPPriority and Relief 3/8“ BSP
Material:Steel components in Cast Iron Body
Symbol
Features● ‘ P r i o r i t y ’ flow rate is pre-set in factory. Flow
through the ‘Priority’ port will remain constant atthe pre-set value as long as input flow equals orexceeds the Priority flow value.
● Pressure compensated permitting both ‘Priority’and ‘By-Pass’ flows to be used simultaneously atvarying pressures without affecting the ‘Priority’flow rate.
● Built-in pressure relief valve protects the ‘Priority’circuit from excess pressure.
Quality Hydraulic Components from the Webtec Range
P
BP R
T
6
Quality Hydraulic Components from the Webtec Range
ORDERING CODES Typical Code WPD 45 69
Series
Priority Flow (Table 1)
Relief Valve Pressure in bar (Table 2)
Table 1: Priority Flow Table 2: R/V Settings
Code Priority Flow
05 2.3 lpm
10 4.5 lpm
17 7.73 lpm
20 9.1 lpm
30 13.6 lpm
35 15.9 lpm
40 18.2 lpm
45 20.5 lpm
Settings Flow Code
62 bar 30
1769 bar 30
3545
0510
103 bar 203040
INSTALLATION DETAILSDimensions in millimetres
13026
3/4” BSP Inlet Port
Relief Valve 3/8” BSP Port
3/4” BSP Secondary Port
3/8” BSP Priority Port
2 Mounting Holes, 7 dia.32 48 CRS
22
7
RFC Series
AdjustableThrottle Valve
THROTTLE VA LV E S provide fine adjustment of flowrates and are particularly useful when accuratemetering is required at low flow. Because these valvesare not pressure compensated they should be used insystems where pressure fluctuations are minimal.
SpecificationsMaximum Pressure:
320 bar (working)
Maximum Flow:120 lpm
Porting:see Table 2
Material:chemically blacked steel (‘free reverse flow’ valve includes an aluminium poppet)
Weight:see Table 2
Symbol
Quality Hydraulic Components from the Webtec Range
Including by-passcheck(Type ‘I’ )
Without by-passcheck(Type ‘W’)
Features● Neat ‘in-line’mounting.
● Fine adjustment at low flow rates is easilyaccomplished by rotating the valve body withrespect to the valve stem.
● Models are available giving either restricted flowin both directions or restricted flow in onedirection with full flow in reverse.
● Chemically blacked finish.
8
Quality Hydraulic Components from the Webtec Range
ORDERING CODES Typical Code RFC 30 W
RFC - Rotary Adjustment Flow Control
Flow Size (Table 2)
Reverse Flow Condition (Table 1)
Table 1: Reverse Flow Control
2.5 2.75 3.25 3.75 43.53
Code Description
I Including by-pass Check
W Without by-pass Check
Code Flow Size Porting (BSP) A B C D Weight kg
18 18 lpm 1/4” 19 32 34 65 0.28
30 30 lpm 3/8” 22 41 43 75 0.53
50 50 lpm 1/2” 27 46 48 80 0.69
120 120 lpm 3/4” 32 55 58 100 1.15
18
30
50
120
00
10
20
30
4050
60
80
100
120
Throttle Characteristics at 7 bar
Setting (No. of turns)
D
CPort Thread see OrderCode
B
A
INSTALLATION DETAILSDimensions in millimetres
Table 2
9
FV 120 Series
Fixed Priority Flow Dividers
P R I O R I T Y TYPE FLOW DIVIDERS split a single inputflow into a ‘Priority’ (regulated) flow and a ‘By-Pass’(excess) flow which can be returned directly to the oilreservoir or used to power a second system. This oftendispenses with the need for another pump to operate asecond system.
A common application on mobile machinery is to usethe ‘Priority’ (regulated) flow for power steering and the‘ B y - P a s s ’ (excess) flow for an implement or lift circuit.This ensures the power steering is satisfied first tokeep the steering speed constant.
SpecificationsMaximum Pressure:
210 bar (working)
Total Flow Capacity:76 lpm
Regulated Flow Capacity:see Table 1, ordering codes
Porting: see Table 3, ordering codes
Material:steel components in cast iron body
Weight:1.50 kg
Mounting:two bolt
Relief Valve:see Table 2, ordering code
Symbol
Features
● ‘ P r i o r i t y ’ flow rate is pre-set in factory to customerspecifications at any value between 3.78 lpm and34.1 lpm in increments of 3.78 lpm. Flow throughthe ‘Priority’ port will remain constant at the pre-set value as long as input flow equals or exceedsthe Priority flow value.
● Pressure compensated permitting both ‘Priority’and ‘By-Pass’ flows to be used simultaneously atvarying pressures without effecting the ‘Priority’flow rate.
● Built-in pressure relief valve protects the ‘Priority’circuit from excess pressure and is adjustablefrom 34.5 bar to 210 bar (Factory set 82.7 barunless otherwise specified).
● Can be used as unidirectional two port in-line flo wcontrol by plugging the ‘By-Pass’ flow port (NB: Inthis configuration a relief valve must be used onthe inlet line).
Quality Hydraulic Components from the Webtec Range
P
BP R
T
10
Quality Hydraulic Components from the Webtec Range
ORDERING CODES Typical Code FV 2 1 20 J
FV - Valve Type
Priority Flow Setting (Table 1)
Relief Valve (Table 2)
20 - Basic Type
Porting (Table 3)
Table 1: Priority Flow Table 2: Relief Valve
Table 3: Porting
Note: Relief Valve can be adjusted between 34.5 bar and 210 bar.Please specify required setting when ordering otherwise setting will be 82.7 bar.
INSTALLATION DETAILSDimensions in millimetres
Code Inlet and By-Pass Port Priority and Relief Port
J 1/2” BSP 3/8” BSP
G 7/8” - 14 SAE 9/16” - 18 SAE
Code Flow at Priority Port
1 3.78 lpm
2 7.57 lpm
3 11.4 lpm
4 15.1 lpm
5 18.9 lpm
6 22.7 lpm
7 26.5 lpm
8 30.3 lpm
9 34.1 lpm
Code Description
0 Without Relief Valve
1 With Relief Valve
* Other threads available to special order.
Relief ValveDrain Port
48.8
96.8Priority Port
2 Mtg HolesØ7.1 Thru’
By-Pass Port
19.8 49.5
Inlet Port
30.2
11
FV 126 Series
Fixed Priority Flow Dividers
P R I O R I T Y TYPE FLOW DIVIDERS split a single inputflow into a ‘Priority’ (regulated) flow and a ‘By-Pass’(excess) flow which can be returned directly to the oilreservoir or used to power a second system. This oftendispenses with the need for another pump to operate asecond system.
A common application on mobile machinery is to usethe ‘Priority’ (regulated) flow for power steering and the‘ B y - P a s s ’ (excess) flow for an implement or lift circuit.This ensures the power steering is satisfied first tokeep the steering speed constant.
SpecificationsMaximum Pressure:
172 bar (working)
Total Flow Capacity:227 lpm
Regulated Flow Capacity:see Table 1, ordering codes
Porting:see Table 3, ordering codes
Material:steel components in cast iron body
Weight:5.22 kg
Mounting:two bolts
Relief Valve:see Table 2, ordering codes
Symbol
Quality Hydraulic Components from the Webtec Range
P
BP R
T
Inlet
By-Pass PriorityRegulated Flow
Features
● ‘ P r i o r i t y ’ flow rate is pre-set in factory to customerspecification between 7.57 lpm and 121 lpm inincrements of 7.57 lpm. Flow through the ‘Priority’port will remain constant at the pre-set value aslong as input flow equals or exceeds the ‘Priority’flow value.
● Pressure compensated permitting both ‘Priority’and ‘By-Pass’ flows to be used simultaneously atvarying pressures without effecting the ‘Priority’flow rate.
● Cartridge type relief valve protects the ‘Priority’circuit from excess pressure and is adjustablefrom 34.5 bar to172 bar. (Factory set at 68.9 barunless otherwise specified).
● Can be used as unidirectional two port in-line flo wcontrol by plugging the ‘By-Pass’ flow port (NB: Inthis configuration a relief valve must be used onthe inlet line).
● Choice of two ‘Priority’port connections.
12
ORDERING CODES Typical Code FV 2 1 2 6
FV - Flow Divider Valve
Priority (regulated) Flow (Table 1)
1 - Priority Type valve
Relief Valve (Table 2)
6 - Nominal Flow Capacity
Table 1: Priority (regulated) Flow Table 2: Relief Valve
Code Priority Flow Code Priority Flow
1 7.5 lpm 9 68.13 lpm
2 15.14 lpm 10 75.70 lpm
3 22.71 lpm 11 83.27 lpm
4 30.28 lpm 12 90.84 lpm
5 37.85 lpm 13 98.41 lpm
6 45.42 lpm 14 105.98 lpm
7 53.00 lpm 15 113.55 lpm
8 60.56 lpm 16 121.12 lpm
Code Description
0 No Relief Valve1 Adjustable Brute Force
(Direct acting)
2 Adjustable Pilot Operated
Port Description Thread
Inlet and by-pass 15/8 - 12 UNFRegulated, AlternateRegulated and Relief 7/8 - 14 UNF
Valve Drain
INSTALLATION DETAILSDimensions in millimetres
Table 3: Porting
BP
REG
PR
REG
RET
64.2
57.1
76.2 33.3
27.9
13
FV 200 Series
Proportional Flow Dividers
P R O P O R T I O N A L FLOW DIVIDERS split a singleinput flow into two output flows, each output being afixed proportion of the input. For example, a 50/50 flo wdivider will always split a single input flow into twoequal output flows which could be used to operate twomotors at equal speeds. The actual rate of flow fromeach output is not fixed but will vary as the input flowrate varies.
SpecificationsMaximum Pressure:
207 bar (workings)
Total Flow Capacity:76 lpm
Porting:see Table 3, ordering codes
Materials:steel components in cast iron body
Weight:1.47 kg
Mounting:two bolt
Symbol
Features● Pressure compensated to keep each output flow
at a fixed percentage of the input flow, regardlessof pressure variations between the output ports.
● Three standard models are available givingproportional splits of 25%/75%, 50%/50% and40% / 60%. Other proportional splits are availableup to 10%/90% (see ordering codes).
● Three flow ranges are available; 10 - 30 lpm, 20 -50 lpm, 40 - 76 lpm (see ordering codes).
Quality Hydraulic Components from the Webtec Range
14
Quality Hydraulic Components from the Webtec Range
ORDERING CODES Typical Code FV200 30 2 J
FV 200 - Valve Type
Flow Range (Table 1)
Output Flow Proportions (Table 2)
Porting (Table 3)
Table 1: Flow Range Table 2: Flow Rates
Table 3: Porting
NOTE: ‘S’ Ported ValveThis valve is produced from a 2FV2V body casting.For installation details see page 17
Code Inlet Port Outlet Ports
J 1/2” BSP 3/8” BSP
S 3/4” BSP 3/4” BSP
Code Recommended Flow Range
30 10 - 30 lpm
50 20 - 50 lpm
70 40 - 76 lpm
Code A/B Ratio %
1 25/75
2 50/50
3 40/60
other ratio available up to 10/90
Outlet Port
Outlet Port
2 Mtg HolesØ 7.1 Thru’(.28” dia)
49.519.1 48.8
Inlet Port
INSTALLATION DETAILSDimensions in millimetres
* Other threads available to special order.
15
VFD 50 Series
Variable Priority Flow Dividers
P R I O R I T Y TYPE FLOW DIVIDERS split a single inputflow into a ‘Priority’ (regulated) flow and a ‘By-Pass’(excess) flow which can be returned directly to the oilreservoir or used to power a second system. In manyinstances this dispenses with the need for anotherpump to operate a second system.
Specifications
Maximum Pressure:250 bar (working)
Total Flow Capacity:50 lpm
Regulated Flow Capacity: see Table 1, ordering codes
Porting:see Table 2 ordering codes
Material:steel components in cast iron body: aluminium knob.
Weight:0.75 kg
Mounting: 2 Bolt - BSP Ported4 Bolt - Manifold
Symbol
Features● Clearly marked hand-dial permits fast visual
adjustments to pre-determined ‘Priority’ flow andfast easy adjustment of ‘Priority’ circuit to meetvarying requirements.
● Pressure compensated permitting both ‘Priorityand ‘By-Pass’ flows to be used simultaneously atvarying pressures without effecting the Priorityflow rate.
● Can be used as uni-directional two port in lineflow control by plugging the ‘By-Pass’ flow port.(NB: in this configuration a relief valve must beused on the inlet line).
● Manifold Mounted type available, please consultsales office.
By-pass Priority
Inlet
RegulatedFlow
16
ORDERING CODES Typical Code VFD50 30 T
Valve Type
Regulated Flow Capacity (Table 1)
Porting (Table 2)
Table 1: Regulated Flow Table 2: Porting
TYPICAL PRESSURE DROP VFD 50 SERIESCurve established using hydraulic mineral oil ISO 32 with viscosity of 21 centistokes at 50°C
Code Regulated Flow
15 0 - 15 lpm
30 0 - 30 lpm
Code Port Type
T 3/8” BSP x 3 Ports
M Manifold Mounted
A 3/8” NPT x 3 Ports
10
10
0 20
20
30
30
40 50
Input Flow (lpm)
INSTALLATION DETAILSDimensions in millimetres
By-Pass Port
2 Mtg HolesØ 5.56/5.57 thru’’Ø 9.5 mm S/Face
Inlet
Priority Port
70
50.015
15
* Other threads available to special order.
17
2FV2V Series
Variable Priority Flow Dividers
P R I O R I T Y TYPE FLOW DIVIDERS split a single inputflow into a ‘Priority’ (regulated) flow and a ‘By-Pass’(excess) flow which can be returned directly to the oilreservoir or used to power a second system. In manyinstances this dispenses with the need for anotherpump to operate a second system.
SpecificationsMaximum Pressure:
250 bar (working)
Total Flow Capacity:114 lpm
Regulated Flow Capacity:see Table 2, ordering codes
Porting:see Table 3, ordering codes
Material:steel components in cast iron body; aluminium knob (steel knob optional)
Weight:2.10 Kg
Mounting:two bolt
Relief valve:(optional) adjustable between 35 - 207 bar - Max. Priority flow : 50 lpm
SymbolSee Installation Details
Features● Clearly marked hand-dial permits fast visual
adjustments to pre-determined ‘Priority’ flow andfast easy adjustments of ‘Priority’ circuit to meetvarying requirements.
● Pressure compensated permitting both ‘Priority’and ‘By-pass’ flows to be used simultaneously atvarying pressures without affecting the ‘Priority’flow rate.
● Can be used as unidirectional two port in line flo wcontrol by plugging the ‘By-Pass’flow port. (NB: inthis configuration a relief valve must be used onthe inlet line).
● All models can be supplied with an adjustablePressure Relief Valve on ‘Priority’ flow.
Quality Hydraulic Components from the Webtec Range
18
Quality Hydraulic Components from the Webtec Range
ORDERING CODES Typical Code 2FV2V 125 J ( )
Valve Type (Table 1)
Regulated Flow Capacity (Table 2)
Porting (Table 3)
Pressure Setting (bar, if Relief Valve required)
Table 1: Valve Type Table 2: Regulated Flow
Table 3: Porting
Code Description
2FV2V No Relief Valve
RV2FV2V Relief Valve between Priorityand Excess Flow Port
RVXD2FV2V Externally Drained Relief Valve
Code Regulated Flow
030 0 - 11 lpm
050 0 - 19 lpm
080 0 - 30 lpm
125 0 - 47 lpm
200 0 - 76 lpm
250 0 - 95 lpm
300 0 - 114 lpm
Code Port Threads Inlet Regulated Relief Valve External DrainFlow and Excess Flow where fitted
J 3/4” BSP 1/4” BSP
A 3/4” NPT 1/4” NPT
M M22 x 1.5 M14 x 1.5
G 1.1/16” - 12 SAE 9/16 - 20 SAE
H 1/2” BSP 1/4” BSP
T 3/8” BSP 1/4” BSP
20 20 40 60 80 100 120
4
6
8
10
12
TYPICAL PRESSURE DROP2FV2V SERIES
Curve established using hydraulic mineral oil ISO 32 with viscosity of 21 centistokes at 50°C
Input Flow (lpm)
* Other threads available to special order.
19
Quality Hydraulic Components from the Webtec Range
By-pass PriorityRegulated
Flow
PInlet
By-pass PriorityRegulated
Flow
PInlet
By-pass PriorityRegulated
Flow
PInlet
INSTALLATION DETAILSDimensions in millimetres
2FV2V (No Relief Valve)
RV2FV2V (Internal Relief Valve between Priority and Excess Flow Ports)
RVXD2FV2V (Externally drained Relief Valve)
SYMBOL
SYMBOL
SYMBOL
96.8
By-Pass FlowPort
External DrainFrom Relief Valve
77.8
49.5
Regulated Port2 Mtg HolesThreadedM8 x 1.25
Inlet21.1
22.9
By-Pass Flow Port
96.8
77.8
2 Mtg HolesØ7.1 Thru’
2 Mtg HolesØ7.1 Thru’
Regulated Port
Inlet
49.5
25.9
Minimum Adjustment121.6118.8
Priority Port
Inlet
46.477.8
49.5
By-Pass Flow Port
20
Quality Hydraulic Components from the Webtec Range
CIRCUIT SUGGESTIONS
1 Variable Speed of Hydraulic MotorDrive on Agricultural Tractor
This circuit gives the capability to varythe speed of a hydraulic motor asrequired. Also, for a given control knobsetting, the hydraulic motor speed staysconstant regardless of the tractorspeed.
2 Two Circuits From a Single Pump
Using only one pump, this circuit givesspeed control of the hydraulic motorand powers a hydraulic cylinder. Eachfunction can be used eithersimultaneously or independentlybecause pressure variations betweenregulated and by-pass flows do noteffect the flow on the regulated circuit.
3 Multiple Circuits From a SinglePump
Using one pump, this circuit givesindependently variable speed drivefrom three hydraulic motors. Motorscan be used simultaneously orindependently.
2FV2V Variable Flow Dividers
PriorityRegulatedFlow
HydraulicMotor
By-passINLET
INLET
INLET
Circuit 1
Circuit 2
Circuit 3
HydraulicMotor
Regulated
By-pass
Hydraulic Cylinder
2FV2V VariableFlow Divider
HydraulicMotors
Reg.
By-pass
Reg.
By-pass
Reg.
By-pass2FV2V VariableFlow Divider
SECTIONED VIEW
21
2FV2V Series
Variable PriorityFlow Dividerwith Motor Drive
P R I O R I T Y TYPE FLOW DIVIDERS split a single inputflow into a ‘Priority’ (regulated) flow and a ‘By-Pass’(excess) flow which can be returned directly to the oilreservoir or used to power a second system. In manyinstances this dispenses with the need for anotherpump to operate a second system.
SpecificationsMaximum Pressure:
250 bar
Total Flow Capacity:114 lpm
Regulated Flow Capacity:see Table 2, ordering codes
Porting:see Table 1
Material:Steel components in cast iron body
Weight:2.75 kg
Power Supply:12V
Peak Current:1.0 Amp
Symbol
Features● Min. to full Priority flow in 15 seconds.
● Powered from Nom. 12 VDC (12 - 16 VDC).
● Electric motor drive permits adjustment from aposition away from the valve such as a cab or acontrol panel.
● Pressure compensated permitting both ‘Priority’and ‘By-Pass’ flows to be used simultaneously atvarying pressures without effecting the ‘Priority’flow rate.
● Can be used as unidirectional two port in line flo wcontrol by plugging the ‘By-Pass’ flow port . (NB:in this configuration a relief valve must be usedon the inlet line).
Quality Hydraulic Components from the Webtec Range
By-pass Priority
Inlet
M
RegulatedFlow
22
Quality Hydraulic Components from the Webtec Range
217.085.0
80
2 Core PVCInsulated Cable.
ORDERING CODES Typical Code 2FV2V 125 J E
Valve Type
Regulated Flow Capacity (Table 2)
Porting (Table 1)
Motor Drive
Table 1: Porting Table 2: Regulated Flow
Code Regulated Flow
030 1/2 - 11 lpm
050 1/2 - 19 lpm
080 1/2 - 30 lpm
125 1/2 - 47 lpm
200 1/2 - 76 lpm
250 1/2 - 95 lpm
300 1/2 - 114 lpm
INSTALLATION DETAILSDimensions in millimetres
Power supply toBlue BrownCable Cable Function
-ve +ve Valve opens+ve -ve Valve closes
Code Port Threads
J 3/4” BSP
M M22 x 1.5
T 3/8” BSP
* Other threads available to special order.
23
FDM Series
Variable PriorityFlow Dividerwith RemoteProportional Control
THE FDM REMOTE CONTROL FLOW DIVIDER isideally suited for the agricultural and industrial userseeking a cost-effective method of controlling hydraulicmotor speed. The priority flow port gives an outputindependent of load pressure while the bypass portcan be used to power a secondary circuit.
SpecificationsMaximum pressure:
250 bar
Total flow capacity:114 lpm
Regulated flow capacity:see Table 2
Porting:see Table 1
Material:Steel components in a cast iron body. Drive mechanism mounted on aluminium supports
Weight:2.75 kg
Power supply:9 - 28 V
Peak current:2.5 A
Average current:< 100 mA
Symbol
Features
● Minimum to maximum priority flow in less than 3seconds (at full pressure)
● 9 - 28 V D.C. supply enables unit to be poweredfrom a vehicle supply
● Remote control using:Potentiometer4 - 20 mAloopCAN Bus
● Remote operating distance: up to 40 m
● Pressure compensated permitting both ‘priority’and ‘bypass’ flow to be used simultaneously atvarying pressures without affecting the ‘priority’flow rate
● Automatic current limiting to prevent overheatingand motor overload
● Valve settings immune to power failure
● Tolerant to vibration and oil contamination
● Valve cover zinc plated and Teflon® coated forcorrosion resistance Teflon® is a Registered Trademark of DuPont
● Dust / water protected to IP 675
● CE Marked
Quality Hydraulic Components from the Webtec Range
By-pass Priority
Inlet
M
RegulatedFlow
24
Quality Hydraulic Components from the Webtec Range
1
2
3
4 6
7
8
9
100
5
Webtec Products Limited
114
150
102
Mounting holesØ 4
Code Control
P Potentiometer
Code Port Threads
T 3/8” BSP
H 1/2” BSP
J 3/4” BSP
ORDERING CODES Typical Code FDM 125 J P
Valve Type
Regulated Flow Capacity (Table 2)
Porting (Table 1)
Control (Table 3)
Table 1: Porting Table 2: Regulated Flow Table 3: Control
Code Regulated Flow
030 1/2 - 11 lpm
050 1/2 - 19 lpm
080 1/2 - 30 lpm
125 1/2 - 47 lpm
200 1/2 - 76 lpm
250 1/2 - 95 lpm
300 1/2 - 114 lpm
INSTALLATION DETAILS - VALUEDimensions in millimetres
*Other threads available to special order.
REG PR
63150
85
Cable entryat base
Ø76
25
2FV2V Series
Manifold Mounted Variable Priority Flow Divider
P R I O R I T Y TYPE FLOW DIVIDERS split a single inputflow into a ‘Priority’ (regulated) flow and a ‘By-Pass’(excess) flow which can be returned directly to the oilreservoir or used to power a second system. In manyinstances this dispenses with the need for anotherpump to operate a second system.
SpecificationsMaximum Pressure:
250 bar (working)
Total Flow Capacity:114 lpm
Regulated Flow Capacity:see Table 1ordering codes
Material:steel components in cast iron body
Weight: 2.75 kg
Mounting:4 Bolt Manifold
Symbol
Features● Pressure compensated permitting both ‘Priority’
and ‘By-Pass’ flows to be used simultaneously atvarying pressures without affecting the ‘Priority’flow rate.
● Can be used as uni-directional two port in lineflow control by plugging the ‘By-Pass’ flow port.(NB: in this configuration a relief valve must beused on the inlet line).
● Available with:-Knob Adjustment (Page 17)Electric Motor Drive (Page 21)Positional control (Page 23)
● Manifold Mounted.
Quality Hydraulic Components from the Webtec Range
By-pass Priority
Inlet
RegulatedFlow
26
Quality Hydraulic Components from the Webtec Range
Code Control Type ‘K’ Control Type ‘Electric’
030 0 - 11 lpm 1/2 - 11 lpm
050 0 - 19 lpm 1/2 - 19 lpm
080 0 - 30 lpm 1/2 - 30 lpm
125 0 - 47 lpm 1/2 - 47 lpm
Code Control
K Knob
E Electric Motor Drive
P Potentiometer
mA 4 - 20mACurrent Loop
ORDERING CODES Typical Code M 2FV2V 125 E
Manifold Mounted
Valve Type
Regulated Flow Capacity (Table 1)
Control Type (Table 2)
Table 1: Regulated Flow Table 2: Control Type
NOTE: Other Installation DetailsFor electric motor type see page 22For potentiometer current loop type see page 24
77.8
96.7
Inlet Port 9.5 dia
ExcessFlow Port12.7 dia
4 Mounting Holes 7.15 diaPriority Port
9.52 dia.
77.8
49.5
INSTALLATION DETAILS (‘K’TYPE)Dimensions in millimetres
27
MM80 Series
Manifold Mounted Variable PriorityFlow Divider
P R I O R I T Y TYPE FLOW DIVIDERS split a single inputflow into a ‘Priority’ (regulated) flow and a ‘By-Pass’(excess) flow which can be returned directly to the oilreservoir or used to power a second system. In manyinstances this dispenses with the need for anotherpump to operate a second system.
SpecificationsMaximum Working Pressure:
250 bar
Total Flow Capacity:80 lpm
Regulated Flow Capacity: 47 lpm
Material: steel components in cast iron body
Weight:3 kg
Mounting: 4 bolt manifold
Symbol
Quality Hydraulic Components from the Webtec Range
By-pass Priority
Inlet
RegulatedFlow
Features● Clear hand-dial permits fast visual adjustment to
pre-determined ‘Priority’ flow and fast easyadjustments of ‘Priority’ circuit to meet varyingrequirements.
● Pressure compensated permitting both ‘Priority’and ‘By-Pass’ flows to be used simultaneously atvarying pressures without affecting the ‘Priority’flow rate.
● Manifold mounted.
28
Quality Hydraulic Components from the Webtec Range
180.0
84.0
Inlet Port 12.7 dia Regulated Port 10 diaBy-pass Port 12.7 dia
36
100.8
70.6
46
100.8
46
114
4 Holes 11.5 dia.
Code Regulated Flow
12 1 - 12 lpm
30 1 - 30 lpm
47 1 - 47 lpm
ORDERING CODES Typical Codes MM 80 47
Valve Type
Flow Capacity
Regulated Flow (Table 1)
Table 1: Regulated Flow
INSTALLATION DETAILSDimensions in millimetres
29
FVDVRV Series
Variable Priority Flow Divider with Diverter Valve
P R I O R I T Y TYPE FLOW DIVIDER split a single inputflow into a ‘Priority’ (regulated) flow and a ‘By-Pass’(excess) flow which can be returned directly to the oilreservoir or used to power a second system. In manyinstances this dispenses with the need for anotherpump to operate a second system.
SpecificationsMaximum Pressure:
210 bar (working)
Total Flow Capacity:80 lpm
Regulated Flow Capacity:see Table 2, ordering codes
Porting:see Table 3, ordering codes
Material:steel components in cast iron body; aluminium knob (steel knob available)
Weight:4 kg
Mounting:two bolt
Relief valve:(optional) adjustable to 210 bar - max. flow 50 lpm.
Symbol
Quality Hydraulic Components from the Webtec Range
P
BP R
Features● Adjusting knob permits fast easy adjustment of
‘Priority’flow to meet varying requirements.
● Pressure compensated permitting both ‘Priority’and ‘By-Pass’ flows to be used simultaneously atvarying pressures without affecting the ‘Priority’flow rate.
● Can be supplied with a pressure relief valve whichis fitted between the ‘Inlet’ and ‘By-Pass’ ports. Inthis case the ‘By-Pass’ circuit should not bepressurised, i.e. the excess flow should bereturned to tank.
● Diverter valve enables the ‘Priority’ flow to beswitched ‘on’ or ‘off’ with the full flow being redirected through the ‘By-Pass’port.
30
Quality Hydraulic Components from the Webtec Range
ORDERING CODES Typical Code FVDVRV 80 010 J 100
Valve Type (Table 1)
80 - Maximum Input Flow 80 lpm
Regulated Flow (Table 2)
Porting (Table 3)
Pressure setting in bar - 210 bar max(if optional relief Valve is required)
Table 1: Valve Type Table 2: Regulated Flow
Table 3: Porting
Code Range
010 0 - 10 lpm
020 0 - 20 lpm
030 0 - 30 lpm
050 0 - 50 lpm
Code Description
FVDV Variable Flow Divider with
Diverter Valve
FVDVRV Variable Flow Divider withDiverter Valve and Relief Valve
Code Inlet and by-pass Priority
J 1/2” BSP 3/8” BSP
INSTALLATION DETAILSDimensions in millimetres
Flow Control Knob350° Rotation
Diverter Lever shown in‘Valve Closed’ position
2 MountingHoles 10.0dia thru’
166.0
95.0 max
38
39 31 26
Relief Valve
120°
Regulated PortBy-pass
Inlet
26
121 CRS 10
31
FDC 60 Series
Flow DividerCombiner
A FLOW DIVIDER-COMBINER will divide a single flo winto two separate flows which will always be in thesame ratio to each other regardless of any pressured i fferential between the two lines. If the flow isreversed (e.g. return stroke of two cylinders) the returnflows are held in the same ratio to each other andcombined into a single flow, regardless of individualloads on the cylinders
A common application is to keep two cylinders (ormotors) in close unison when loads on them areunequal. The valves may also be used in series tooperate more than two circuits.
SpecificationsMaximum Pressure:
310 bar (working)
Total Flow Capacity:70 lpm
Porting:see Table 2, ordering codes
Materials:steel components in cast iron body
Weight:2.05 kg
Mounting:three bolt
Symbol
Quality Hydraulic Components from the Webtec Range
Port P
Port A
Port B
Features● Pressure compensated to keep the two divided
flow rates at the same ratio regardless ofpressure variations between them.
● Flow ratios are pre-set at factory from 50%/50%up to 10%/90%.
● Flow ranges are available from 5 lpm to 70 lpm.
● Cast iron/hardened steel construction (noaluminium) makes it suitable for miningapplications.
32
Quality Hydraulic Components from the Webtec Range
ORDERING CODES Typical Code FDC 60 10 3 A40% B60%
FDC 60 - Valve Type
Recommended Flow Range (Table 1)
Porting (Table 2)
Divider Ratio (Table 3)
Table 1: Recommended Flow Range Table 3: Divider Ratio
Table 2: Porting (choose from following codes)
Code Port P Port A Port B
1 M18 x 1.5 M18 x 1.5 M18 x 1.5
2 M22 x 1.5 M18 x 1.5 M18 x 1.5
3 3/8” BSP 3/8” BSP 3/8” BSP
4 1/2” BSP 3/8” BSP 3/8” BSP
5 1/2” BSP 1/2” BSP 1/2” BSP
6 7/8” - 14 SAE 3/4” - 16 SAE 3/4” - 16 SAE
7 M27 x 2 M22 x 1.5 M22 x 1.5
8 1/2” NPT 1/2” NPT 1/2” NPT
50 64
A B50% 50%
thru’90% 10%
NB: Either outlet port (Aor B) may be designated to take either leg of the
ratios.The example shown designates 40%at Aand 60% at B. Any ratio from 50%
50% to 90% 10% may be specifie d .
3 Mtg Holes6.75 dia
45
INSTALLATION DETAILSDimensions in millimetres
Code Flow Range
05 2 - 5 lpm
10 5 - 10 lpm
20 8 - 20 lpm
30 16 - 30 lpm
40 25 - 40 lpm
50 35 - 50 lpm
60 45 - 60 lpm
70 55 - 70 lpm
* Other threads available to special order.
Your Webtec Products representative:
Webtec Products LimitedNuffield Road, St. Ives, Cambridgeshire, PE27 3LZ, UK
Tel: +44(0)1480 397400 Fax: +44(0)1480 466555
E-mail: sales@webtec.co.ukSee us at: www.webtec.co.uk
Webtec Products Limited reserve the right to make improvements and changes to the specification without notice.
Certificate No.8242
Manufacturers of Hydraulic Components
and Test Equipment for the Mobile,
Industrial and Agricultural Industries
Recommended