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 | N
(USC) | N
(SI) |
|---|---|---|
| OrificeStandard Inlet Sizes | N
(USC) 4" | N
(SI) DN 100 |
| OrificeInlet and Outlet Connection Types | N
(USC) RF x RF, RTJ x RF, RTJ x RTJ | N
(SI) RF x RF, RTJ x RF, RTJ x RTJ |
| OrificeActual Orifice Diameter | N
(USC) 2.500 in | N
(SI) 63.5 mm |
| OrificeActual Orifice Area | N
(USC) 4.909 in2 | N
(SI) 3167.1 mm2 |
| OrificeAPI Orifice Area | N
(USC) 4.340 in2 | N
(SI) 2800.0 mm2 |
| OrificePressure Range | N
(USC) 15 – 740 psig | N
(SI) 104 – 5102 kPa |
| OrificeStandard Temperature Range | N
(USC) -20°F to 400°F | N
(SI) -29°C to 204°C |
| OrificeASME Flow Coefficient, Kd (Gas) | N
(USC) 0.818 | N
(SI) 0.818 |
| OrificeASME Flow Coefficient, Kd (Liquid) | N
(USC) 0.707 | N
(SI) 0.707 |
Mercer Valve Co., Inc. reserves the right to change product designs and specifications without notice.
9100 Flanged "N" | Part Number Selection
91 -
70
A
N
B
1
C
1
D
V
E
4F
F
X
G
1
H
I
A | INLET & OUTLET COMBINATION
(See Dimensions & Weights, below.)
B | API ORIFICE LETTER
N – 4.909 in²
C | INLET & OUTLET TYPE / BODY MATERIAL
1★ – RF x RF / WCB CARBON STEEL
3★ – RTJ x RF / WCB CARBON STEEL
2 – RF x RF / CF3M STAINLESS STEEL
4 – RTJ x RF / CF3M STAINLESS STEEL
A – RTJ x RTJ / WCB CARBON STEEL
B – RTJ x RTJ / CF3M STAINLESS STEEL
P – RF x RF / LCC CARBON STEEL
Q – RTJ x RF / LCC CARBON STEEL
D | CAP TYPE
1★ – CLOSED CAP
2 – OPEN LIFT LEVER
3 – CLOSED LIFT LEVER
E | SEAT MATERIAL
V★ – FKM
T★ – PTFE
B – BUNA-N
E – EPDM
N – NEOPRENE
F – FKM (LOW TEMP)
F | SPRING CODE
(Spring codes assigned by Mercer Valve.)
G | TRIM CODES
X★ – ALL 316 S.S. (STANDARD GAS SERVICE)
LX★ – 316 S.S. DISK & NOZZLE (LIQUID SERVICE)
NX★ – 316 S.S. DISK & NOZZLE (SOUR GAS SERVICE)
BX★ – 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 Code70★☆ | Inlet and Outlet Size (in) 4" 150 x 6" 150 | Pressure Limit 1, 2 (psig) 285 | Dimensions 2
"A" x "B" x "C" (in ± .062) 7.750 x 8.250 x 21.213 | Approximate Weight 2 (lbs) 245 |
| Inlet and Outlet Code71★☆ | Inlet and Outlet Size (in) 4" 300 x 6" 150 | Pressure Limit 1, 2 (psig) 740 | Dimensions 2
"A" x "B" x "C" (in ± .062) 7.750 x 8.250 x 21.213 | Approximate Weight 2 (lbs) 290 |
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.
☆Flange dimensions compliant with API 526.
| 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 Code70★☆ | Inlet and Outlet Size DN (mm)DN 100 150 x DN 150 150 | Pressure Limit 1, 2 (kPa)1965 | Dimensions 2 "A" x "B" x "C" (mm ± 1.6)169.9 x 209.6 x 538.7 | Approximate Weight 2 (kg)111.1 |
| Inlet and Outlet Code71★☆ | Inlet and Outlet Size DN (mm)DN 100 300 x DN 150 150 | Pressure Limit 1, 2 (kPa)5102 | Dimensions 2 "A" x "B" x "C" (mm ± 1.6)169.9 x 209.6 x 538.7 | Approximate Weight 2 (kg)131.5 |
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.
☆Flange dimensions compliant with API 526.