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Type J
Specifications
This section lists the specifications for the Type J Control Valve. Factory specification are stamped on the
nameplate fastened on the control valve at the factory.
Control Valve Types
Type J1: Cast Iron
Type J3: Stainless steel
Valve Sizes
NPS 1/2, 3/4, 1, 1-1/2 and 2 / DN 15, 20, 25, 40
and 50
Pressure and Temperature Chart
See Figure 2
End Connection Styles
NPT, CL150, CL300 and CL600
Flow Coefficient, C
v
NPS 1/2 / DN 15: 5.1
NPS 3/4 / DN 20: 10.3
NPS 1 / DN 25: 18.2
NPS 1-1/2 / DN 40: 37
NPS 2 / DN 50: 67
1. The pressure/temperature limits in this Instruction Manual and any applicable standard or code limitation should not be exceeded.
Table 1. Approximate Weight
SCREWED
VALVE SIZE
36 in. sq /
0.02 sqm
NPS
DN
lbs
kg
1/2
15
20.5
9.3
36.5
3/4
20
20.5
9.3
36.5
1
25
22.5
10.2
38.75
1-1/2
40
29.25
13.3
45.5
2
50
38.25
17.3
54.25
2
(1)
FLANGED
60 in. sq /
36 in. sq /
60 in. sq /
0.04 sqm
0.02 sqm
0.04 sqm
lbs
kg
lbs
kg
lbs
16.6
23.5
10.7
39.5
16.6
25.75
11.7
41.75
17.6
29.0
13.2
45.25
20.6
40.25
18.3
57.5
24.6
50.25
22.8
68.25
Construction Materials
Body: Stainless steel or Cast iron
Seat Ring: Stainless steel
Packing: PTFE V ring, PTFE/Graphite or Graphite
Plug and Stem Assembly: Stainless steel
Yoke: Ductile iron
Diaphragm: Nitrile/Polyester
Piston: Stainless steel
Spring: Steel wire
Actuator Housing: Steel
Options
36 or 60 sq. in. / 0.02 or 0.04 sqm actuators
Soft Seats- 450°F / 232°C
Moore, PMV, Eckardt Positioner Accessories
Approximate Weight
See Table 1
Seat Leakage Classifications
Metal Seats: ANSI/ISA 70-2 Class IV
Teflon Soft Seats: Class VI
kg
17.9
18.9
20.5
26.1
31.0
– Saturated Steam
– J1 ANSI/ASME B16.1 Cast Iron
– J3 ANSI/ASME B16.34 Class 600 Stainless Steel
Figure 2. Type J Pressure and Temperature Chart
TEMPERATURE (°F)
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