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Max. Operating Pressure 450 psig (31 barg) Max. Operating Temperature Optional Bimetal 650F (343C) at 450 psig (31 barg)

Pressure Shell Design Conditions PMA 450 psig/up to 650F 31 barg/up to 343CMax. allowable pressure 425 psig/700F 29 barg/371C 375 psig/750F 26barg/400CTMA Max. allowable temperature 750F/0-375 psig 400C/0-26 barg

The trap contains a float valve mechanism which modulates to discharge condensate continuously at steam temperature, while non-condensible gases are released by a separate internal thermostatic air vent.

In the interests of development and improvement of the product, we reserve the right to change the specification.

Model FT450

PMO 450 psig Sizes 3" 4"

Connections NPT, SW, Flanged Flanged Construction Carbon Steel Body Stainless Steel Internals

No. Part Material 1 Body Cast Carbon Steel ASTM A216 WCB 2 Cover Cast Carbon Steel ASTM A216 WCB 3 Cover Gasket Graphite with SS insert 4 Cover Bolts Alloy Steel ASTM A193 GR B7 5 Lockwashers Steel 6 Main Valve Assembly Stainless Steel Valve Mech. Gasket Graphite Valve Mech. Screws Stainless Steel 7 Float Stainless Steel ASTM A240 Type 304 8 Cover Plug (3/4" NPT) Steel Drain Plug (3/4" NPT) Steel 9 Companion Flange Forged Steel 10 Flange Bolts Alloy Steel ASTM A193 GR B7 11 Air Vent Assembly Stainless Steel Air Vent Head Stailess Steel Air Vent Seal Stainless Steel 11A Air Vent Stainless Steel & Bimetal RAU Type RR 12 Air Vent Pipe Stainless Steel

Construction Materials

Local regulation may restrict the use of this product below the conditions quoted. Limiting conditions refer to standard connections only.

Typical Applications Reboilers, heat exchangers and other large process equipment Large absorption chillers In combination with the Spirax Sarco 4" Pressure Powered Pump

TI-2-3041-US 2.14

Capacities

11212453

1

910

78

6

**

Limiting Operating Conditions

1,000,000800,000700,000600,000

500,000

400,000

300,000

200,000

150,000

100,000

80,00070,00060,00050,000

40,000

30,000

1 1.5 2 3 4 5 7 10 15 20 30 40 50 70 100 150 200 300 400

.1 .15 .2 .3 .4 .5 .7 1 1.5 2 3 4 5 7 10 15 20 32

400,000

300,000

200,000

150,000

100,000

70,000

50,000

40,000

30,000

20,000

15,000

Differential Pressure bar

Differential Pressure psi

Con

den

sate

lb/h

r

Con

den

sate

kg/

hr

* In this region the trap capacity may exceed the flow capacity of the connection piping.

Cold

Hot

3" NPT/SW

Cast Steel Float & Thermostatic Steam Trap 3'' and 4'' FT450

750F (400C) at operating pressures below 375 psig (26 barg)

The product must not be used in this region.

The product must not be used in this regionas damage to internals may occur.

Pressure (psig)

Pressure bar g

Tem

pera

ture

C

Tem

pera

ture

F400

300200

100

0

752

572

392

212

320

145

10

435290 464 580 725

20 30 4032 50

0

Steam saturation curve

The

rmo

stat

ic a

ir v

ent

Op

erat

ing

Ran

ge

StandardsThis product fully complies with the requirements of the European Pressure Equipment Directive 97/23/EC, and carries the CE mark when so required.CertificationThis product is available with certification to EN 10204 3.1. Designed in accordance with ASME VIII Dir 1. Note: All certification/inspection requirements must be stated at the time of order placement.

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Cast Steel Float & Thermostatic Steam Trap3'' and 4'' FT450

Spirax Sarco, Inc., 1150 Northpoint Blvd, Blythewood, SC 29016 Telephone: (803) 714-2000 FAX (803) 714-2222

S

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014

TI-2-3041-US 2.14

Sample SpecificationSteam traps shall be of the mechanical ball float type having cast steel bodies with stainless steel internal parts. The piping connections shall be horizontal in-line, and the body shall incorporate mounting legs with drilled pads. The traps shall have an integral thermostatic air vent. The trap body shall be horizontally split and all internal parts shall be completely serviceable without disturbing the inlet and outlet piping.

InstallationThe trap should be located below and close to the equipment drain point. A pipe-line strainer should be installed ahead of the trap, and full port isolating valves should be placed to permit servicing. The mounting legs should be bolted to a firm horizontal support. Access above the trap must be provided for servicing.Complete installation instructions are given in IMI 2.3041.

MaintenanceThis product can be maintained without disturbing the piping connections. Complete isolation from both supply and return line is required before any servic-ing is performed.

The trap should be disassembled periodically for inspection and cleaning of the valve mechanism and air vent.

Complete installation and maintenance instructions are given in IMI 2.3041, which accompanies the product.

D

F

E

B

P

3/4" NPT

7.56192

12.0305

3/4" NPT

6.75171

3" NPT, SW27.75 705

.625Mounting Holes

11.529217.5444

32.0813

with

dra

wal

23.7602

16.0406

8.0203

Spare Parts

Dimensions (nominal)

Weight 485 lb (220 kg)3" ANSI 150 or 300 RF,4" ANSI 150 or 300 RF

39.0 990

Valve Mechanism Kit D, E, F

Gasket Kit (pkt of 3 each) B, K

Air Vent Kit Standard N, J, M, H, L, K Air Vent Kit Optional K, H

Float Kit P

StandardAir Vent Assembly

Optional BimetalAir Vent Assembly

K N J M H LK H