Honeywell Pneumatic Controls - VP525 C Pneumatic Radiator Valve; Radiator

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Humidistats
and
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Engineering
Guide
Cross
Reference
70-6925 101
VP525C Pneumatic Radiator Valve
Normally-open, single-seated pneumatic radiator valve with
straight through or angle body construction provides proportional
control of two-pipe, hot water or steam systems. Replacement
devices are available for Johnson, Powers, Robertshaw, Barber-
Colman, and older Honeywell devices.
• Available in several capacities and spring ranges for various
application requirements.
• Easily replaceable actuator assembly for convenience of service.
• Compact size for installation where space is limited.
• Can be repacked without shutting down system.
Dimensions in inches (millimeters)
Close-off Ratings at various Control Air Pressures VP525C Typical Piping Diagram
Valve Type: Unitary
Body Pattern: Two-way
Body Pressure: 150 psi (1034 kPa)
Air Connections: Push on for 1/4 in. O.D. plastic tubing
Valve Action: Proportional Normally Open
Controlled Medium: Water; Steam
Operating Humidity Range (% RH): 5 to 95% RH
Temperature Range: 40 F to 240 F (4 C to 116 C)
Maximum Safe Actuator Diaphragm Temperature: 230 F (110 C)
Maximum Diaphragm Pressure: 30 psi (205 kPa)
Accessories:
14004932-001 Pneumatic Valve Adapter (M6410/M7410 linkage and a
green main spring to allow to retrofit an electric actuator)
A
A
E
B
B
C
C
D
D
1-1/2
(38)
1-1/2
(38)
2-1/4 DIAMETER (57)
2-1/4 DIAMETER (57)
BODY STYLE SIZE NPT
A
BCDE
STRAIGHT THRU –
MALE UNION OUTLET
1/2
3/4
1/2
3/4
3-1/2
3-1/2
3-1/4
3-1/8
(90)
(90)
(83)
(80)
1-3/8
1-3/8
1
1
(35)
(35)
(25)
(25)
1-3/8
1-5/8
1-1/8
1-1/4
(35)
(41)
(29)
(32)
2-1/2
3
2-5/8
3
(63)
(76)
(66)
(76)
3/4
1-1/8
(19)
(29)
ANGLE – MALE
UNION OUTLET
M16449A
1-1/2 in. (38 mm) MINIMUM CLEARANCE TO REMOVE
ACTUATOR. 2 1/2 in. (63 mm) MINIMUM CLEARANCE
TO FACILITATE STRAIGHT ON TUBING CONNECTION.
IF CLEARANCE IS LESS THAN 2 1/2 in. (63 mm)
USE AN ELBOW.
1
1 1
AIR CONNECTION
FOR1/4 IN. (6 mm)
O.D. PLASTIC TUBING
AIR CONNECTION
FOR1/4 IN. (6 mm)
O.D. PLASTIC TUBING
COVER FASTENERCOVER FASTENER
VP525C CLOSE-OFF
AT MAXIMUM SYSTEM PRESSURE
3-10
2-5
19
(131)
21
(145)
CONTROL AIR PRESSURE PSI (kPa)
20
(138)
15
(103)
17
(117)
18
(124)
13
(90)
16
(110)
11
(76)
9
(62)
14
(97)
ACTUATOR
SPRING RANGE
PSI (kPa)
0
(0)
20
(138)
40
(276)
60
(414)
80
(552)
100
(689)
CLOSE OFF DIFFERENTIAL
PRESSURE RATINGS PSI (kPa)
120
(827)
140
(965)
C7714A
30
(207)
25
(172)
28
(193)
23
(159)
C
v
= 2.0
C
v
= 0.63
C
v
= 3.0
C
v
= 5.0
26
(179)
24
(165)
22
(152)
THERMOSTAT
BRANCHLINE
N.O.
C4654
SYSTEM
SUPPLY