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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
MERCER VALVE COMPANY, INC.®Auto Seat Technology®
1400 SERIES SAFETY RELIEF VALVES
MERCER VALVE COMPANY, INC.®Auto Seat Technology®
®
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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
500 to 6000(3447 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
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4 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 a r t s a n d M a t e r i a l s
1400 SERIES SAFETY RELIEF VALVES
MERCER VALVE COMPANY, INC.®Auto Seat Technology®
1400 SERIES SAFETY RELIEF VALVES
MERCER VALVE COMPANY, INC.®Auto Seat Technology®
®
ITEM NO.
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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
NOTE: Mercer Valve reserves the right to change product designs and specifications without notice.
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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
5www.mercervalve.net · 1.800.833.6402
MERCER VALVE COMPANY, INC.®“Auto Seat Technology”®
1400 SERIES SAFETY RELIEF VALVES1400 SERIES SAFETY RELIEF VALVES
MERCER VALVE COMPANY, INC.®Auto Seat Technology®1400 SERIES SAFETY RELIEF VALVES
MERCER VALVE COMPANY, INC.®Auto Seat Technology®
®
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 5
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6 www.mercervalve.net · 1.800.833.6402
MERCER VALVE COMPANY, INC.®“Auto Seat Technology”®1400 SERIES SAFETY RELIEF VALVES1400 SERIES SAFETY RELIEF VALVES
MERCER VALVE COMPANY, INC.®Auto Seat Technology®
1400 SERIES SAFETY RELIEF VALVES
MERCER VALVE COMPANY, INC.®Auto Seat Technology®
®
6 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
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
7www.mercervalve.net · 1.800.833.6402
MERCER VALVE COMPANY, INC.®“Auto Seat Technology”®
1400 SERIES SAFETY RELIEF VALVES1400 SERIES SAFETY RELIEF VALVES
MERCER VALVE COMPANY, INC.®Auto Seat Technology®1400 SERIES SAFETY RELIEF VALVES
MERCER VALVE COMPANY, INC.®Auto Seat Technology®
®
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 7
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
NOTE: Mercer Valve reserves the right to change product designs and specifications without notice.
Vespel® is a registered trademark of E. I. du Pont de Nemours and Company or its affiliates
MVC14 Revision Date 10/15 Supersedes N/A
CORPORATE HEADQUARTERS9609 NW 4th STREET
OKLAHOMA CITY, OK 731271-800-833-6402
PHONE: (405) 495-6533, FAX: (405) 495-8728
SALES@MERCERVALVE.NETPlease 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.