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™
- Non-rising stems allowing valves to be installed in small areas.
- Pilot Valve options include: Backflow Preventer, Pressure Snubber and Auxiliary Filter.
- Modulating Pilot Valve options include: Field Test Connection, Test Gag, and Manual or Remote Blowdown.
- 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 | 8" FB (USC) | 8" FB (SI) |
|---|---|---|
| OrificeStandard Inlet Sizes | 8" FB (USC) 8" | 8" FB (SI) 200 DN |
| OrificeInlet and Outlet Connection Types | 8" FB (USC) RF x RF, RTJ x RF, RTJ x RTJ | 8" FB (SI) RF x RF, RTJ x RF, RTJ x RTJ |
| OrificeActual Orifice Diameter | 8" FB (USC) 7.625 in | 8" FB (SI) 193.7 mm |
| OrificeActual Orifice Area | 8" FB (USC) 45.664 in2 | 8" FB (SI) 29460.6 mm2 |
| OrificePressure Range | 8" FB (USC) 15 – 900 psig | 8" FB (SI) 104 – 6205 kPa |
| OrificeStandard Temperature Range | 8" FB (USC) -20°F to 400°F | 8" FB (SI) -29°C to 204°C |
| OrificeASME Flow Coefficient, Kd (Gas) | 8" FB (USC) 0.870 | 8" FB (SI) 0.870 |
Mercer Valve Co., Inc. reserves the right to change product designs and specifications without notice.
9500 Modulating Main Valve 8" Full Bore | Part Number Selection
95 -
81X
A
8
B
1
C
3
D
0
E
7
F
G
M
H
I
J
A | INLET & OUTLET COMBINATION
(See Dimensions & Weights, below.)
B | ORIFICE SIZE
8 – 8" FULL BORE – 45.664 in²
C | FLANGE TYPE
1★ – RF x RF
2 – RTJ x RTJ
3 – RTJ x RF
D | BODY MATERIAL
3★ – WCB CARBON STEEL
4 – CF3M STAINLESS STEEL
5 – LCC CARBON STEEL
E | OPTIONS
0★ – NO OPTIONS
1 – BACKFLOW PREVENTER
2 – PRESSURE SNUBBER
3 – AUXILIARY FILTER
4 – OPTIONS 1 & 2
5 – OPTIONS 1 & 3
6 – OPTIONS 2 & 3
7 – OPTIONS 1, 2, & 3
F | SEAT MATERIAL┼┼
7★ – PTFE
8★ – FKM
N – NEOPRENE
B – BUNA
E – EPDM
G | SOUR GAS SERVICE
BLANK★ – NON SOUR APPLICATIONS
N – SOUR GAS SERVICE
H | PILOT TYPE
M★ – GAS MODULATING PILOT (See below for part numbering breakdown.)
I | O-RING MATERIAL┼┼
BLANK★ – STANDARD IF APPLICABLE
3 – PC BUNA
5 – LOW TEMP BUNA
6 – FFKM
7 – FKM ED
K – HNBR
J | TWO-DIGIT "SPECIAL" CODE
(Two-digit special codes assigned by Mercer Valve, if applicable.)
★Standard Materials or Options.
┼┼O-ring codes are only used with Seat codes 7, 9, & Y when O-rings are not standard FKM. If using the standard FKM O-rings, leave O-ring code BLANK.
9500 Modulating Pilot Valve | Part Number Selection
M1 -
A
1
B
1
C
0
D
0
E
0
F
07
G
H
I
J
A | MODULE PRESSURE CODE
M1★ – SET PRESSURE 15 to 85 PSIG
M2★ – SET PRESSURE 86 to 175 PSIG
M3★ – SET PRESSURE 176 to 450 PSIG
M5★ – SET PRESSURE 451 to 750 PSIG
M6★ – SET PRESSURE 751 to 1480 PSIG
B | BODY MATERIAL
1★ – CARBON STEEL
2 – 316 STAINLESS STEEL
C | MODULE SEALS▼
1★ – FKM
2 - EPDM
3 - BUNA
4 - FFKM
5 - PC BUNA
D | BLOWDOWN TYPE
0★ – NONE
1 - MANUAL BLOWDOWN VALVE╋
2 - REMOVE BLOWDOWN VALVE╋
3 - LIFT LEVER
E | FIELD TEST CONNECTION
0★ – NONE
1 - STANDARD
F | TEST ACCESSORIES
0★ – NONE
1 - TEST GAG
G | SPRING CODE
(Spring codes assigned by Mercer Valve.)
H | SOUR GAS SERVICE
BLANK★ – NON SOUR APPLICATIONS
N – SOUR GAS SERVICE
I | ORING MATERIAL▼
BLANK★ – STANDARD IF APPLICABLE
J | TWO-DIGIT "SPECIAL" CODE
(Two-digit special codes assigned by Mercer Valve, if applicable.)
★Standard Materials or Options.
▼Module Seal codes 2, 3, 4 & 5 receive like material O-rings and Exhaust Seats. Consult Factory.
╋May require a Special Code on the Main Valve. Consult Factory.
| Inlet and Outlet Code | Inlet and Outlet Size (in) | Pressure Limit 1, 2 (psig) | Dimensions 2 "A" x "B" x "C" (in ± .125) | Approximate Weight 2 (lbs) |
|---|---|---|---|---|
| Inlet and Outlet Code81X | Inlet and Outlet Size (in) 8" 150 x 10" 150 x 10" 150 | Pressure Limit 1, 2 (psig)285 | Dimensions 2 "A" x "B" x "C" (in ± .125) 10.875 x 11.000 x 11.000 x 34.341 | Approximate Weight 2 (lbs) 670 |
| Inlet and Outlet Code82X | Inlet and Outlet Size (in) 8" 150 x 10" 150 x 10" 150 | Pressure Limit 1, 2 (psig)740 | Dimensions 2 "A" x "B" x "C" (in ± .125) 10.875 x 11.000 x 11.000 x 34.341 | Approximate Weight 2 (lbs) 695 |
| Inlet and Outlet Code83X | Inlet and Outlet Size (in) 8" 600 x 10" 150 x 10" 150 | Pressure Limit 1, 2 (psig)900 | Dimensions 2 "A" x "B" x "C" (in ± .125) 11.688 x 11.000 x 11.000 x 35.154 | Approximate Weight 2 (lbs) 735 |
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.
| Inlet and Outlet Code | Inlet and Outlet Size DN (mm) | Pressure Limit 1, 2 (kPa) | Dimensions 2 "A" x "B" x "C" (mm ± 3.175) | Approximate Weight 2 (kg) |
|---|---|---|---|---|
| Inlet and Outlet Code81X | Inlet and Outlet Size DN (mm)DN 200 150 x DN 250 150 x DN 250 150 | Pressure Limit 1, 2 (kPa)1965 | Dimensions 2 "A" x "B" x "C" (mm ± 3.175)276.2 x 279.4 x 279.4 x 872.2 | Approximate Weight 2 (kg)303.9 |
| Inlet and Outlet Code82X | Inlet and Outlet Size DN (mm)DN 200 300 x DN 250 150 x DN 250 150 | Pressure Limit 1, 2 (kPa)5102 | Dimensions 2 "A" x "B" x "C" (mm ± 3.175)276.2 x 279.4 x 279.4 x 872.2 | Approximate Weight 2 (kg)315.2 |
| Inlet and Outlet Code83X | Inlet and Outlet Size DN (mm)DN 200 600 x DN 250 150 x DN 250 150 | Pressure Limit 1, 2 (kPa)6205 | Dimensions 2 "A" x "B" x "C" (mm ± 3.175)296.9 x 279.4 x 279.4 x 892.8 | Approximate Weight 2 (kg)333.4 |
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.