V48A,F,J; V88A,J DIAPHRAGM GAS VALVES
3 60-2080—9
Table 2. Models Available.
a
A valve position indicator is on 1-1/4 in. V48A2227 and 2 in. V48F1103 Valves. BSP.PI—British Standard Parallel Internal
Threads; NPT—American Standard Taper Pipe Threads.
Fig. 1. Mounting dimensions of V48A,F,J and V88A,J Diaphragm Gas Valves in in. (mm).
Table 3. Extending Valve Opening Time
a
By Adding a Bleed Orifice.
a
Time to reach 80% gas flow at fully open position. Inlet pressure; 4.2 in. wc (1.05 kPa) for 1 to 2 in. valves; 5 in. wc (1.25 kPa)
for 2-1/2 and 3 in. valves. Pressure drop across valves at fully open position. 0.2 in. wc (0.05 kPa) for 1 to 2 in. valves; 1 in. wc
(0.25 kPa) for 2-1/2 and 3 in. valves.
Model Voltage and Frequency
Maximum Operating
Pressure
Pipe Size (in.)
Thread
Type
a
psi kPa
V48A 100V, 50 Hz 1/2 3.4 1, 1-1/4, 1-1/2 BSP.PI
16.92
120V, 60 Hz 1/2 3.4 3/4, 1, 1-1/4, 1-1/2 NPT
1 6.9 1, 1-1/4, 1-1/2, 2, 2-1/2, 3
220V, 50 Hz 1, 1-1/4, 1-1/2, 2, 3 BSP.PI
240V, 50 Hz 2 NPT
V48F 120V, 60 Hz 5 34.5 2
V48J 120V, 60 Hz 1 6.9 3/4, 1, 1-1/4, 1-1/2, 2
110V, 50 Hz
V88A 24V, 60 Hz 1/2 3.4 3/4, 1, 1-1/4, 1-1/2
1 6.9 3/4, 1, 1-1/4, 1-1/2, 2, 2-1/2, 3
V88J 24V, 60 Hz 6.9 1, 1-1/4
Valve Size (in.)
Valve Opening Time (seconds)
No Orifice
Orifice No. 122160,
0.018 in. (0.46 mm)
Orifice No. 124674,
0.011 in. (0.28 mm)
1123
1-1/4 1 5 6
1-1/2 1 5 6
241532
2-1/2 4 23 37
352437
1
2
1
2
BLEED TAPPING: 1/8-27 NPT, OR 1/8-28 BSP. PL.
PILOT TAPING (2): 1/8-27 NPT FOR 3/4 THROUGH 1-1/2 IN. SIZES, 1/4-18 NPT FOR 2 THROUGH 3 IN. SIZES; OR 1/8-28 BSP.
PL FOR 1 THROUGH 1-1/2 IN. SIZES, 1/4-19 BSP.PL FOR 2 THROUGH 3 IN SIZES.
M8487
E
C
A
B
D
F
APPROXIMATE DIMENSIONS
VALVE
SIZE
(IN.)
ABCDEF
IN. MM IN. MM IN. MM IN. MM IN. MM IN.
MM
3/4
1
1-1/4
1-1/2
2
2-1/2
3
4-11/16
5-1/16
5-9/16
5-9/16
6-15/16
6-15/16
6-15/16
119.1
128.6
141.3
141.3
176.2
176.2
176.2
3/4
1
1-1/4
1-1/4
2-1/4
2-1/4
2-1/4
19.1
25.4
31.8
31.8
57.2
57.2
57.2
4-5/8
5
5-7/8
5-7/8
9-1/2
9-1/2
9-1/2
117.5
127.0
149.2
149.2
241.3
241.3
241.3
3-1/2
3-11/16
5-5/16
5-5/16
8-3/8
8-3/8
8-3/8
88.9
93.7
134.9
134.9
212.7
212.7
212.7
1-5/8
2-1/16
2-3/8
2-3/8
3-9/16
3-9/16
3-9/16
41.3
52.4
60.3
60.3
90.5
90.5
90.5
3-13/16
4-5/16
5-5/16
5-5/16
5-5/16
9-5/16
9-5/16
96.8
109.5
134.9
134.9
236.5
236.5
236.5
1-13/16
(46)
3-11/16
(94)
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