think…mercer first®
Features:
- Designed with "Auto Seat Technology"®
- A low rated and fully guided spring allows for more consistent Set Pressures from pop to pop.
- Consistent Set Pressures allows for repeatable use without the need for excessive repairs or resetting.
- Open, Close, Seat and Seal™
- Fully guided disk for the proper alignment, opening and closing, and reseating of the valve.
- Mechanical Stop prevents wear on parts and controls valve lift.
- Pop Action relief allows the valve to go to full lift at Set Pressure. This helps with DOT regulated applications.
- Non-rising stems allowing valves to be installed in small areas.
- Sour Service Trim available.
- Additional options available to meet NACE MR0175 requirements.
- Canadian Registration Number (CRN)
- Additional options available to meet Conformité Européenne (CE) to PED Directive 2014/68/EU and/or ATEX Directive 2014/34/EU
| Orifice | G (USC) | G (SI) |
|---|---|---|
| OrificeStandard Inlet Sizes | G (USC)1 ½", 2" | G (SI)DN 40, DN 50 |
| OrificeInlet and Outlet Connection Types Available | G (USC)Male NPT x Female NPT or Female NPT x Female NPT | G (SI)Male NPT x Female NPT or Female NPT x Female NPT |
| OrificeActual Orifice Diameter | G (USC)0.775 in | G (SI)19.7 mm |
| OrificeActual Orifice Area | G (USC)0.472 in2 | G (SI)304.5 mm2 |
| OrificeAPI Orifice Area | G (USC)0.503 in2 | G (SI)324.5 mm2 |
| OrificePressure Range | G (USC)10 – 2000 psig | G (SI)168 – 13789 kPa |
| OrificeStandard Temperature Range | G (USC)-20°F to 400°F | G (SI)-29°C to 204°C |
| OrificeASME Flow Coefficient Kd (Gas) | G (USC)0.818 | G (SI)0.818 |
| OrificeASME Flow Coefficient Kd (Liquid) | G (USC)0.707 | G (SI)0.707 |
Mercer Valve Co., Inc. reserves the right to change product designs and specifications without notice.
9100 Threaded "G" | Part Number Selection
91 -
34
A
G
B
5
C
1
D
V
E
61
F
U
G
1
H
I
A | INLET & OUTLET COMBINATION
(See Dimensions & Weights, below.)
B | API ORIFICE LETTER
G – 0.472 in²
C | INLET BASE & BODY MATERIAL
5★ – CARBON STEEL / WCB CARBON STEEL
6 – 316 STAINLESS STEEL / WCB CARBON STEEL
7 – 316 STAINLESS STEEL / CF3M STAINLESS STEEL
R – 316 STAINLESS STEEL / LCC CARBON STEEL
D | CAP TYPE
1★ – CLOSED CAP
2 – OPEN LIFT LEVER
3 – CLOSED LIFT LEVER
E | SEAT MATERIAL
V★ – FKM
T★ – PTFE
P★ – VIRGIN PEEK
B – BUNA N
E – EPDM
N – NEOPRENE
X – FFKM
Y – VESPEL®
L – PC BUNA
F – FKM (LOW TEMP)
F | SPRING CODE
(Spring codes assigned by Mercer Valve.)
G | TRIM CODES
U★ – 316 S.S. DISK & NOZZLE (GAS SERVICE ≤ 1200 PSIG)
C★ – 440C S.S. DISK, 17-4 S.S. NOZZLE (GAS SERVICE > 1200 PSIG)
L★ – 316 S.S. DISK & NOZZLE (LIQUID SERVICE)
N★ – 316 S.S. DISK & NOZZLE (SOUR GAS SERVICE)
B★ – 316 S.S. DISK & NOZZLE (SOUR LIQUID SERVICE)
X – ALL 316 S.S. (OPTIONAL GAS SERVICE)
LX – ALL 316 S.S. (OPTIONAL LIQUID SERVICE)
BX – ALL 316 S.S. (OPTIONAL SOUR LIQUID SERVICE)
NX – ALL 316 S.S. (OPTIONAL SOUR GAS SERVICE)
H | O-RING MATERIAL
1★ – FKM & BUNA-N (STANDARD)
2 – FKM 75 DURO
3 – FKM 90 DURO
4 – BUNA-N 70 DURO
5 – BUNA-N 75 DURO (LOW TEMP)
7 – FFKM
9 – NEOPRENE
A – CHEMRAZ®
C – EPDM 80 DURO
D – EPDM 90 DURO
G – TFE/P
H – SILICONE
J – FLUOROSILICONE
K – HNBR
L – PC BUNA
M – FKM ED
P – FKM 75 DURO (LOW TEMP)
I | TWO-DIGIT "SPECIAL" CODE
(Two-digit special codes assigned by Mercer Valve, if applicable.)
★Standard Materials or Options.
91 -
34
A
G
B
5
C
1
D
V
E
61
F
U
G
1
H
I
A | INLET & OUTLET COMBINATION
(See Dimensions & Weights, below.)
B | API ORIFICE LETTER
G – 0.472 in²
C | INLET BASE & BODY MATERIAL
5★ – CARBON STEEL / WCB CARBON STEEL
6 – 316 STAINLESS STEEL / WCB CARBON STEEL
7 – 316 STAINLESS STEEL / CF3M STAINLESS STEEL
R – 316 STAINLESS STEEL / LCC CARBON STEEL
D | CAP TYPE
1★ – CLOSED CAP
2 – OPEN LIFT LEVER
3 – CLOSED LIFT LEVER
E | SEAT MATERIAL
V★ – FKM
T★ – PTFE
P★ – VIRGIN PEEK
B – BUNA N
E – EPDM
N – NEOPRENE
X – FFKM
Y – VESPEL®
L – PC BUNA
F – FKM (LOW TEMP)
F | SPRING CODE
(Spring codes assigned by Mercer Valve.)
G | TRIM CODES
U★ – 316 S.S. DISK & NOZZLE (GAS SERVICE ≤ 1200 PSIG)
C★ – 440C S.S. DISK, 17-4 S.S. NOZZLE (GAS SERVICE > 1200 PSIG)
L★ – 316 S.S. DISK & NOZZLE (LIQUID SERVICE)
N★ – 316 S.S. DISK & NOZZLE (SOUR GAS SERVICE)
B★ – 316 S.S. DISK & NOZZLE (SOUR LIQUID SERVICE)
X – ALL 316 S.S. (OPTIONAL GAS SERVICE)
LX – ALL 316 S.S. (OPTIONAL LIQUID SERVICE)
BX – ALL 316 S.S. (OPTIONAL SOUR LIQUID SERVICE)
NX – ALL 316 S.S. (OPTIONAL SOUR GAS SERVICE)
H | O-RING MATERIAL
1★ – FKM & BUNA-N (STANDARD)
2 – FKM 75 DURO
3 – FKM 90 DURO
4 – BUNA-N 70 DURO
5 – BUNA-N 75 DURO (LOW TEMP)
7 – FFKM
9 – NEOPRENE
A – CHEMRAZ®
C – EPDM 80 DURO
D – EPDM 90 DURO
G – TFE/P
H – SILICONE
J – FLUOROSILICONE
K – HNBR
L – PC BUNA
M – FKM ED
P – FKM 75 DURO (LOW TEMP)
I | TWO-DIGIT "SPECIAL" CODE
(Two-digit special codes assigned by Mercer Valve, if applicable.)
★Standard Materials or Options.
| Inlet and Outlet Code | Inlet and Outlet Size (in) | Pressure Limit 1, 2 (psig) | Dimensions 2
"A" x "B" x "C" (in ± .062) | Approximate Weight 2 (lbs) |
|---|---|---|---|---|
| Inlet and Outlet Code 33 | Inlet and Outlet Size (in)1 ½" FNPT x 2" FNPT | Pressure Limit 1, 2 (psig)2000 | Dimensions 2
"A" x "B" x "C" (in ± .062)4.673 x 2.312 x 10.298 | Approximate Weight 2 (lbs)13 |
| Inlet and Outlet Code 34★ | Inlet and Outlet Size (in)1 ½" MNPT x 2" FNPT | Pressure Limit 1, 2 (psig)1480 | Dimensions 2
"A" x "B" x "C" (in ± .062)4.423 x 2.312 x 10.048 | Approximate Weight 2 (lbs)12 |
| Inlet and Outlet Code 42 | Inlet and Outlet Size (in)2" FNPT x 2" FNPT | Pressure Limit 1, 2 (psig)2000 | Dimensions 2
"A" x "B" x "C" (in ± .062)4.673 x 2.312 x 10.298 | Approximate Weight 2 (lbs)12 |
| Inlet and Outlet Code 43★ | Inlet and Outlet Size (in)2" MNPT x 2" FNPT | Pressure Limit 1, 2 (psig)1480 | Dimensions 2
"A" x "B" x "C" (in ± .062)4.423 x 2.312 x 10.048 | Approximate Weight 2 (lbs)12 |
1Pressure limit may be subject to system conditions and temperatures.
2Pressure limit, weight, and “C” dimension may vary with sour gas service and other options.
★Standard Materials or Options.
| Inlet and Outlet Code | Inlet and Outlet Size DN (mm) | Pressure Limit 1, 2 (kPa) | Dimensions 2 "A" x "B" x "C" (mm ± 1.6) | Approximate Weight 2 (kg) |
|---|---|---|---|---|
| Inlet and Outlet Code33 | Inlet and Outlet Size DN (mm)DN 40 (FNPT) x DN 50 (FNPT) | Pressure Limit 1, 2 (kPa)13789 | Dimensions 2 "A" x "B" x "C" (mm ± 1.6)118.6 x 58.7 x 261.6 | Approximate Weight 2 (kg)5.9 |
| Inlet and Outlet Code34★ | Inlet and Outlet Size DN (mm)DN 40 (MNPT) x DN 50 (FNPT) | Pressure Limit 1, 2 (kPa)10204 | Dimensions 2 "A" x "B" x "C" (mm ± 1.6)112.3 x 58.7 x 255.3 | Approximate Weight 2 (kg)5.4 |
| Inlet and Outlet Code42 | Inlet and Outlet Size DN (mm)DN 50 (FNPT) x DN 50 (FNPT) | Pressure Limit 1, 2 (kPa)13789 | Dimensions 2 "A" x "B" x "C" (mm ± 1.6)118.6 x 58.7 x 261.6 | Approximate Weight 2 (kg)5.4 |
| Inlet and Outlet Code43★ | Inlet and Outlet Size DN (mm)DN 50 (MNPT) x DN 50 (FNPT) | Pressure Limit 1, 2 (kPa)10204 | Dimensions 2 "A" x "B" x "C" (mm ± 1.6)118.6 x 58.7 x 261.6 | Approximate Weight 2 (kg)5.4 |
1Pressure limit may be subject to system conditions and temperatures.
2Pressure limit, weight, and “C” dimension may vary with sour gas service and other options.
★Standard Materials or Options.