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Solenoid-operated diaphragm valves provide slow opening and fast closing suitable for controlling natural, LP or manufactured gases. They are normally used on atmospheric boilers, commercial water heaters, and rooftop heaters.


  • Rated for 150F (66C) maximum temperature applications.
  • V48 for line voltage service; V88 for 24Vac service.
  • Close firmly with diaphragm that is both weight and spring loaded.
  • Two second maximum closing time.
  • Valve closes on power failure; recommended for final shutoff service.
  • Set opening time with various sized bleed orifices or adjustable bleed valve.
  • Use with LP, natural or manufactured gases.
  • Made with cast aluminum in straight-through valve pattern.

Product Specifications

Dimensions (in.)
6 13/16 in. high x 5 5/16 in. wide x 5 7/8 in. deep
Dimensions (mm)
173 mm high x 135 mm wide x 149 mm deep
Item Type
Upright (horizontal)
60 Hz
Approvals, Underwriters Laboratories Inc.
File No. MH1639, Guide No. YIOZ
Approvals, Canadian Standards Association
Certificate No. 158158-2500005576 (Z21.21-CSA 6.5)
Electrical Connections
6 in. Leadwires
Power Consumption
9 W; 15 VA max
24 Vac
Operating Temperature Range (F)
32 F to 150 F
Operating Temperature Range (C)
0 C to 66 C
Current Ratings
0.62 max amps at rated Vac/Hz
Body Pattern
Pressure Ratings (psi)
1 psi
Pressure Ratings (kPa)
6.9 kPa
Type of Fuel
Natural; LP; Manufactured
Pipe Size (inch)
1 1/4 in.
Pipe Size (DN)
Bleed Tapping
1/8-27 NPT
Pilot Tapping
1/8-27 NPT
Valve Opening Time
5 sec max
Valve Closing Time
2 sec max
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