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8500 “E” Orifice

thinkmercer first®

8500 "E" | Model Specifications
Valve Size½"
(USC)
½"
(SI)
Valve SizeAvailable Inlet Sizes½"
(USC)
¾", 1"
½"
(SI)
DN 20, DN 25
Valve SizeAvailable Outlet Size½"
(USC)
1"
½"
(SI)
DN 25
Valve SizeInlet and Outlet Connection Types½"
(USC)
Male NPT x Female NPT
or
Female NPT x Female NPT
½"
(SI)
Male NPT x Female NPT
or
Female NPT x Female NPT
Valve SizeOrifice Diameter½"
(USC)
0.520 in
½"
(SI)
13.2 mm
Valve SizeActual Orifice Area½"
(USC)
0.212 in2
½"
(SI)
136.8 mm2
Valve SizeAPI Orifice Area½"
(USC)
0.196 in2
½"
(SI)
126.5 mm2
Valve SizeEquivalent Orifice Letter½"
(USC)
E
½"
(SI)
E
Valve SizePressure Range½"
(USC)
15 – 1650 psig
½"
(SI)
104 – 11376 kPa
Valve SizeStandard Temperature Range½"
(USC)
-20°F to 400°F
½"
(SI)
-29°C to 104°C
Valve SizeASME Gas "Slope" ½"
(USC)
3.37
½"
(SI)
3.37
Valve SizeEquivalent Flow Coefficient Kd (Gas) ½"
(USC)
0.867
½"
(SI)
0.867

Mercer Valve Co., Inc. reserves the right to change product designs and specifications without notice.

8500 "E" | Part Number Selection

85 -
17
A
1
B
5
C
1
D
V
E
09
F
G1
G
1
H
 
I

A | INLET & OUTLET COMBINATION

(See Dimensions & Weights, below.)

B | ORIFICE SIZE

1 – ½" DIAMETER ("E" ORIFICE)

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 – FKM
T – PTFE
P – VIRGIN PEEK
B – BUNA-N
Y – VESPEL®

F | SPRING CODE

(Spring codes assigned by Mercer Valve.)

G | TRIM CODES

G1 – GAS SERVICE
N1 – SOUR GAS SERVICE (15-1200 PSIG)
N2 – SOUR GAS SERVICE (1201-1650 PSIG)
NX – ALL 316 S.S. SOUR GAS SERVICE

H | O-RING MATERIAL

1 – FKM & BUNA-N
2 – FKM 75 DURO
3 – FKM 90 DURO
4 – BUNA-N
9 – NEOPRENE
P – FKM (LOW TEMP) 75 DURO

I | TWO-DIGIT "SPECIAL" CODE

(Two-digit special codes assigned by Mercer Valve, if applicable.)

Standard Materials or Options.

8500 "E" | Dimensions & Weights (USC)
Inlet and Outlet CodeInlet and Outlet Size
(in)
Pressure Limit1, 2
(psig)
Dimensions2
"A" x "B" x "C"
(in ± .062)
Approximate Weight 2
(lbs)
Inlet and Outlet Code11Inlet and Outlet Size
(in)
¾" FNPT x 1" FNPT
Pressure Limit1, 2
(psig)
1650
Dimensions2
"A" x "B" x "C"
(in ± .062)
2.265 x 1.906 x 7.078
Approximate Weight 2
(lbs)
4.5
Inlet and Outlet Code12Inlet and Outlet Size
(in)
¾" MNPT x 1" FNPT
Pressure Limit1, 2
(psig)
1650
Dimensions2
"A" x "B" x "C"
(in ± .062)
3.202 x 1.906 x 8.015
Approximate Weight 2
(lbs)
4.5
Inlet and Outlet Code16Inlet and Outlet Size
(in)
1" FNPT x 1" FNPT
Pressure Limit1, 2
(psig)
1650
Dimensions2
"A" x "B" x "C"
(in ± .062)
3.202 x 1.906 x 8.015
Approximate Weight 2
(lbs)
5.5
Inlet and Outlet Code17Inlet and Outlet Size
(in)
1" MNPT x 1" FNPT
Pressure Limit1, 2
(psig)
1650
Dimensions2
"A" x "B" x "C"
(in ± .062)
3.202 x 1.906 x 8.015
Approximate Weight 2
(lbs)
4.5

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.

8500 "E" | Dimensions & Weights (SI)
Inlet and Outlet CodeInlet and Outlet Size
DN (mm)
Pressure Limit1, 2
(kPa)
Dimensions 2
"A" x "B" x "C"
(mm ± 1.6)
Approximate Weight 2
(kg)
Inlet and Outlet Code11Inlet and Outlet Size
DN (mm)
DN 20 FNPT x DN 25 FNPT
Pressure Limit1, 2
(kPa)
11376
Dimensions 2
"A" x "B" x "C"
(mm ± 1.6)
57.2 x 47.6 x 179.4
Approximate Weight 2
(kg)
2.0
Inlet and Outlet Code12Inlet and Outlet Size
DN (mm)
DN 20 MNPT x DN 25 FNPT
Pressure Limit1, 2
(kPa)
11376
Dimensions 2
"A" x "B" x "C"
(mm ± 1.6)
82.6 x 47.6 x 203.2
Approximate Weight 2
(kg)
2.0
Inlet and Outlet Code16Inlet and Outlet Size
DN (mm)
DN 25 FNPT x DN 25 FNPT
Pressure Limit1, 2
(kPa)
11376
Dimensions 2
"A" x "B" x "C"
(mm ± 1.6)
82.6 x 47.6 x 203.2
Approximate Weight 2
(kg)
2.5
Inlet and Outlet Code17Inlet and Outlet Size
DN (mm)
DN 25 MNPT x DN 25 FNPT
Pressure Limit1, 2
(kPa)
11376
Dimensions 2
"A" x "B" x "C"
(mm ± 1.6)
82.6 x 47.6 x 203.2
Approximate Weight 2
(kg)
2.0

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.