MERCER VALVE THINK · The 1400 Series is a safety relief valve designed for lower capacity systems. The unique design of the 1400 Series incorporates features of our patented Auto

THINK...MERCER FIRST®

MER

CER

VA

LV

EMERCER VALVE CO., INC.

“AUTO SEAT TECHNOLOGY”®®

1400 SERIES

2

2 www.mercervalve.net · 1.800.833.6402

MERCER VALVE COMPANY, INC.®“Auto Seat Technology”®1400 SERIES SAFETY RELIEF VALVES

1 4 0 0 S e r i e s P r o d u c t O v e r v i e w

1400 SERIES SAFETY RELIEF VALVES

2 w w w . m e r c e r v a l v e . n e t • 1 . 8 0 0 . 8 3 3 . 6 4 0 2

MERCER VALVE COMPANY, INC.®Auto Seat Technology®1400 SERIES SAFETY RELIEF VALVES

MERCER VALVE COMPANY, INC.®Auto Seat Technology®

The 1400 Series is a safety relief valve designed for lower capacity systems. The unique design of the 1400 Series incorporates features of our patented Auto Seat Technology® that allows for less leakage and a more consistent set pressure. The smaller size of the valve allows for easier installations in tight confined spaces and allows for smaller inlet and outlet connections. The 1400 Series is certified through ASME Boiler Pressure Vessel Code Section VIII, Division 1 for Air and Gas Service. The 1400 Series is designed for applications ranging from 500-PSI up to 6,000-PSI.

®®

1 4 0 0 S e r i e s F e a t u r e s

• Incorporated features of “Auto Seat Technology”®

• Consistent Set Pressures allowing repeatable useswithout repair or resetting.

• Open, Close, Seat and Seal.TM

• Fully guided disk keeps the disk properly alligned,opening and closing, helping to reseat the valve.

• Mechanical Stop prevents wear on parts and controlsvalve lift.

• Low rated and fully guided spring allows for moreconsistent set pressures from pop to pop.

• Pop Action relief allows valve to go to full lift at setpressure. Helps with DOT regulated applications.

• Built in accordance with the requirements of ASMEBoiler and Pressure Vessel Code. Sec. VIII Div 1.

• Non-rising stems allowing valves to be installed in small areas.

3www.mercervalve.net · 1.800.833.6402

MERCER VALVE COMPANY, INC.®“Auto Seat Technology”®

1400 SERIES SAFETY RELIEF VALVES1400 SERIES SAFETY RELIEF VALVES




®

w w w . m e r c e r v a l v e . n e t • 1 . 8 0 0 . 8 3 3 . 6 4 0 2 3

Inlet Sizes Available

Outlet Sizes Available

Orifice Diameter, in (mm)

Orifice Area, in2 (mm2)

Orifice Letter

ASME "Slope" (Gas)

Equivalent Flow Coefficient (Gas)

Pressure Range, psig (kPag)

Std Temp Range, °F (°C)

1/2", 3/4", 1"

3/4", 1"

0.160 (4)

0.020 (13)

B

0.291

0.7937

150 to 6000(1034 to 41368)

-20 to 400(-29 to 204)

NOTE: Mercer Valve reserves the right to change product designs and specifications without notice.

1 4 0 0 S e r i e s M o d e l S p e c i f i c a t i o n s

2


MERCER VALVE COMPANY, INC.®“Auto Seat Technology”®1400 SERIES SAFETY RELIEF VALVES

1 4 0 0 S e r i e s P a r t s a n d M a t e r i a l s





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ITEM NO.

1

2

3

4

5

6

7

8

9

10

11

12

PART NAME

INLET BASE

O-RING

BODY SUBASSEMBLY

O-RING

NOZZLE SUBASSEMBLY

DISK

SPRING

ADJUSTMENT BUSHING

ADJUSTMENT SCREW

O-RING

WASHER

LOCKNUT

STANDARD MATERIALS

316 STAINLESS STEEL

FLUOROCARBON (FKM)

CF3M STAINLESS STEEL

FLUOROCARBON (FKM)

316 STAINLESS STEEL WITH SOFT SEAT

316 STAINLESS STEEL

17-7 PH STAINLESS STEEL

316 STAINLESS STEEL

316 STAINLESS STEEL

FLUOROCARBON (FKM)

316 STAINLESS STEEL

ALLOY STEEL



1 4 0 0 S e r i e s D i m e n s i o n s a n d W e i g h t s

NOTE: Mercer valve reserves the right to change product designs and specifications without notice.

1

2

3

4

5

6

7

8

9

1/2" NPT FEMALE

3/4" NPT FEMALE

1" NPT FEMALE

3/4" NPT MALE

1" NPT MALE

SAE J1926-1 3/4-16 PORT

SAE J1926-1 1 1/16-12 PORT

SAE J1926-1 1 5/16-12 PORT

SAE J518 3/4" CODE 62

6000 (41368)

6000 (41368)

6000 (41368)

6000 (41368)

6000 (41368)

6000 (41368)

6000 (41368)

6000 (41368)

6000 (41368)

27/16 (62)

27/16 (62)

213/16 (71)

33/16 (81)

33/16 (81)

27/16 (62)

27/16 (62)

213/16 (71)

43/16 (106)

15/8 (41)

15/8 (41)

15/8 (41)

15/8 (41)

15/8 (41)

15/8 (41)

15/8 (41)

15/8 (41)

15/8 (41)

61/8 (156)

61/8 (156)

61/2 (165)

67/8 (175)

67/8 (175)

61/8 (156)

61/8 (156)

61/2 (165)

77/8 (200)

4.25 (1.9)

4.25 (1.9)

4.00 (1.8)

4.25 (1.9)

4.50 (2.0)

4.25 (1.9)

4.25 (1.9)

4.85 (2.2)

5.0 (2.26)

Inlet Code Inlet Size and Type Maximum Set Pressurepsig(kpag)

Dimensions A x B x C in ± 1/16 (mm ± 2)

A B CApprox. Weight

lbs(kg)

13 CLOSED CAP 316 STAINLESS STEEL






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MERCER VALVE COMPANY, INC.®“Auto Seat Technology”®1400 SERIES SAFETY RELIEF VALVES1400 SERIES SAFETY RELIEF VALVES




®


AIR CAPACITY AT 60ºFAND STD ATMOSPHERIC CONDITIONS

1 4 0 0 S e r i e s C a p a c i t y C h a r t s

Set Pressure(psig)

SCFM MSCFH MMSCFD Nm3/h

500600700800900100011001200130014001500160017001800190020002100220023002400250026002700280029003000310032003300340035003600370038003900400041004200430044004500460047004800490050005100520053005400550056005700580059006000

16419622826029232435638842045248451654858061264467670874177380583786990193396599710291061109311251157118912211253128513171349138114131445147715091541157316051637166917011733176517971829186118931925

1012141618192123252729313335373941434446485052545658606264666769717375777981838587899192949698100102104106108110112114115

0.240.280.330.370.420.470.510.560.610.650.700.740.790.840.880.930.971.021.071.111.161.201.251.301.341.391.441.481.531.571.621.671.711.761.801.851.901.941.992.032.082.132.172.222.262.312.362.402.452.502.542.592.632.682.732.77

26431536741846952157262467572777882988193298410351087113811911243129413451397144815001551160316541706175718081860191119632014206621172168222022712323237424262477252925802631268327342786283728892940299130433094

205245285325365405445485524564604644684724764804844884924964100410441083112311631203124312831323136314031443148315231563160316421682172217621802184218821922196220022042208221222162220222412281232123612401

12151719222427293134363941434648515355586063656770727577798284878991949699101103106108111113115118120123125127130132134137139142144

0.300.350.410.470.530.580.640.700.760.810.870.930.991.041.101.161.221.271.331.391.451.501.561.621.681.731.791.851.911.962.022.082.142.192.252.312.372.422.482.542.602.652.712.772.832.882.943.003.063.113.173.233.293.343.403.46

330394458522587651715780842907971103511001164122812921357142114851550161416781741180518691934199820622127219122552320238424482512257726392704276828322897296130253090315432183282334734113475354036023667373137953860

Set Pressure(psig)

SCFM MSCFH MMSCFD Nm3/h

500600700800900100011001200130014001500160017001800190020002100220023002400250026002700280029003000310032003300340035003600370038003900400041004200430044004500460047004800490050005100520053005400550056005700580059006000

NATURAL GAS (0.6 SG) CAPACITY AT 60°FAND STD ATMOSPHERIC CONDITIONS






®


1 4 0 0 S e r i e s P r o d u c t N u m b e r i n g S y s t e m

STANDARD MATERIALS OR OPTIONS** ONLY AVAILABLE ON INLET SIZES 1,2,4,6,7,&9++ ORING MATERIAL MUST MATCH SEAT MATERIAL EXCEPT FOR OPTION 5 SEAT

INLET BASE/BODY MTRL TRIM MATERIALS7 - S.S. "316" X - GAS SERVICE

NX - SOUR GAS SERVICE

CAP TYPE1 - CLOSED TOP3 - CLOSED LIFT LEVER

ORIFICE SIZEB - .020 in2 ORIFICE AREA TWO DIGIT "SPECIAL" CODE

IF APPLICABLE (ASSIGNED BY MERCER)

14- 2 2 B 7 1 1 2A X 1

ORING MATERIALS ++INLET SPRING CODE 1 - FLUOROCARBON (FKM) ED

& EXTRUSION RESISTANT1 - 1/2" NPT FEMALE (SEE SPRING CHARTS)2 - BUNA N (LOW TEMP)2 - 3/4" NPT FEMALE3 - EPDM 962-903- 1" NPT FEMALE OUTLET4 - PEROXIDE CURED BUNA4 - 3/4" NPT MALE 2 - 3/4" NPT FEMALE**

5 - 1" NPT MALE 3 - 1" NPT FEMALE 1 - FLUOROCARBON (FKM) ED & EXTRUSION RESISTANT6 - SAE J1926-1 3/4-16 PORT 2 - BUNA N (LOW TEMP)7 - SAE J1926-1 1 1/16-12 PORT 3 - EPDM 962-908 - SAE J1926-1 1 5/16-12 PORT 4 - PEROXIDE CURED BUNA9 - SAE J518 3/4" CODE 62 5 - VESPEL®

SEAT MATERIAL


Vespel® is a registered trademark of E. I. du Pont de Nemours and Company or its affiliates

MVC14 Revision Date 04/18 Supersedes 04/17

CORPORATE HEADQUARTERS9609 NW 4th STREET

OKLAHOMA CITY, OK 731271-800-833-6402

PHONE: (405) 495-6533, FAX: (405) 495-8728

[email protected] visit our website to learn about our branch locations!

WWW.MERCERVALVE.NET

Mercer Valve Company, Inc.® manufactures pressure relief valves for uses with many different products. Your choice of a valve requires that you, as buyer, determine the valve material is compatible with the intended use of the valve. You are responsible to insure that the correct pressure relief valve is installed for your application and your order of a valve confirms the material compatibility choices.

Documents

MERCER VALVE THINK · The 1400 Series is a safety relief valve designed for lower capacity systems. The unique design of the 1400 Series incorporates features of our patented Auto