Two-way, Unitary, 1/2 in., 1.6 Cv

Overview

Normally-open, single-seated valve provides proportional control of steam or hot or cold water in terminal units. Replacement devices are available for Johnson, Powers, Robertshaw, Barber-Colman, and older Honeywell devices.

Features

• Available in several capacities and spring ranges for various application requirements.
• Easily replaceable actuator assembly for convenience of service.
• Compact size for use inside most unit enclosures.

Product Specifications

Dimensions (in.)

Pipe centerline to top of actuator: 3 1/2 in. Face-to-face: 2 9/32 in.

Dimensions (mm)

Pipe centerline to top of actuator: 89 mm; Face-to-face: 58 mm

Temperature Range (F)

40 F to 240 F (140 F max difference, alternating hot and cold water service); Maximum Safe Actuator Diaphragm Temperature--230 F

Temperature Range (C)

4 C to 116 C (78 K max difference, alternating hot and cold water service); Maximum Safe Actuator Diaphragm Temperature--110 C

Includes

3-10 psi spring is packed in box

Comments

Replacement for VP531A1004 and VP531A1012

Operating Humidity Range (% RH)

5 to 95% RH

Connection Size (in.)

1/2 in.

Connection Type

NPT

Body Pattern

Two-way

Spring Range (psi)

2 psi to 5 psi

Spring Range (kPa)

14 kPa to 34 kPa

Air connections

Push on for 1/4 in. O.D. plastic tubing

Capacity (Cv)

1.6 Cv

Capacity (Kv)

1.38 Kv

Valve Action

Proportional Normally Open

Valve Type

Unitary

Body Pressure (psi)

150 psi

Body Pressure (kPa)

1034 kPa

Maximum Diaphragm Pressure (psi)

30 psi

Maximum Diaphragm Pressure (kPa)

205 kPa

Controlled Fluid

Steam,Water

Close-off Ratings at Branch Line Pressure

70 psid at 20 psi (with 2 to 5 psi spring)

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