Privacy Statement
Skip Ribbon Commands
Skip to main content
Item 4 Of 6
3-way Divert/Seq/Unitary, O.D. 1/2 in.


Three-way diverting, sequencing, unitary water valve with 1/2 in. O.D.

  • Product Info
  • Literature


Three-pipe, sequencing, pneumatically operated water valve for controlling both hot and cold water flow in fan-coil and induction units. Replacement devices are available for Johnson, Powers, Robertshaw, Barber-Colman, and older Honeywell devices.


  • Corrosion resistant.
  • Molded-in composition discs for tight shutoff.
  • Flare connections for easy installation.
  • Operator rotates 360 degrees for convenient air piping alignment.

Product Specifications

Dimensions (in.)
9 7/8 in. high x 5 1/8 in. diameter
Dimensions (mm)
257 mm high x 130 mm diameter
Temperature Range (F)
35 F to 250 F; Maximum Actuator Temperature--160 F
Temperature Range (C)
2 C to 121 C; Maximum Actuator Temperature--71 C
Operating Humidity Range (% RH)
5 to 95% RH
Connection Size (in.)
O.D.: 1/2 in.; Nominal: 3/8 in.
Connection Type
45 deg. SAE flare
Body Pattern
Three-way Diverting, Sequencing
Spring Range (psi)
Spring Range (kPa)
Air connections
1/8 in. NPT
Capacity (Cv)
Port A: 1.5 Cv, Port B: 1.5 Cv
Capacity (Kv)
Port A: 1.3 Kv, Port B: 1.3 Kv
Valve Action
Valve Type
Body Pressure (psi)
250 psi
Body Pressure (kPa)
1724 kPa
Maximum Diaphragm Pressure (psi)
25 psi
Maximum Diaphragm Pressure (kPa)
172 kPa
Controlled Fluid
Close-off Ratings at Branch Line Pressure
15 psid at 13 psi