8100 Threaded Specifications
Valve Size | ½” | ¾” |
---|---|---|
Orifice Diameter (in.) | 0.520 | 0.775 |
API Orifice Area (sq. in.) | 0.196 | 0.503 |
ASME Actual Orifice Area (sq. in.) | 0.212 | 0.472 |
Equivalent Orifice Letter | E | G |
Inlet Sizes Offered | ¾”,1″ | 1½”, 2″ |
Pressure Ranges (psig) | 15-2400 | 15-2000 |
ASME Gas “Slope” | 3.100 | 7.210 |
Equivalent Flow Coefficient “K” (Gas) | 0.798 | 0.830 |
8100 Threaded Selection
Inlet/Outlet
P/N: Code |
Valve Size Inlet and Outlet
|
Available Orifice Size
|
Maximum Pressure Limit
(psig) 1 |
Dimensions (in)
1/16 A x B x C |
Approximate Weight
(lb) |
---|---|---|---|---|---|
12 | ¾” MNPT x 1″ FNPT | ½” Orifice | 2400 | 3¼ x 1⅞ x 8 | 4.5 |
17 | 1″ MNPT x 1″ FNPT | ½” Orifice | 2400 | 3¼ x 1⅞ x 8 | 4.5 |
34 | 1½” MNPT x 2″ FNPT | ¾” Orifice | 2000 | 41⁄16 x 2⅜ x 101⁄16 | 11 |
43 | 2″ MNPT x 2″ FNPT | ¾” Orifice | 2000 | 47⁄16 x 2⅜ x 101⁄16 | 12 |
Notes: 1) System Conditions and Temperatures can limit the maximum pressure of the valve |
8100 Series Selection Table

A | INLET & OUTLET COMBINATION |
---|---|
(See Selection Table above) | |
B | ORIFICE SIZE |
1 – ½” DIAMETER | |
2 – ¾” DIAMETER | |
C | INLET BASE & BODY MATERIAL |
5 – CARBON STEEL / WCB CARBON STEEL | |
6 – 316 STAINLESS STEEL / WCB CARBON STEEL | |
D | CAP TYPE |
1 – CLOSED CAP | |
2 – OPEN LIFT LEVER | |
3 – CLOSED LIFT LEVER | |
E | SEAT MATERIAL |
V – FLUOROCARBON (FKM) 90 DUROMETER | |
T – 15% GLASSED FILLED PTFE | |
P – VIRGIN PEEK | |
F | SPRING CODE |
(ASSIGNED BY MERCER) | |
G | TRIM CODES |
G1 – GAS SERVICE (15-1225PSI : ½” ORIFICE , 15-520PSI : ¾” ORIFCE) | |
G2 – GAS SERVICE (1226-2400PSI : ½” ORIFICE , 521-2000PSI : ¾” ORIFICE) | |
N1 – SOUR GAS SERVICE (15-1225PSI : ½” ORIFICE , 15-520PSI : ¾” ORIFICE) | |
N2 – SOUR GAS SERVICE (1226-2400PSI : ½” ORIFICE , 521-2000PSI : ¾” ORIFICE) | |
H | O-RING MATERIAL |
1 – STANDARD O-RINGS (FKM & BUNA-N) | |
I | 2- DIGIT “SPECIAL” CODE |
(IF APPLICABLE ASSIGNED BY MERCER) |