479 East 186th Street Bronx, N.Y.  10458

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Price: $215.00

    Item #: V4943B1019
    Availability: In stock
    Usually ships In 1-2 Business days
    In stock Quantity: 1

    Single-stage pressure regulating, 1 in. NPT 120Volt diaphragm gas valve.

    V4943/8943B, C, N are Single-stage Pressure Regulating Valve;These valves are used on boilers, unit heaters, duct furnaces, makeup air and rooftop heaters.


    • Designed for replacement for V4843/V8843;Gas Valves.
    • Suitable for use on atmospheric boilers, commercial water heaters, and rooftop heaters.
    • V4943/V8943B,C,N models are solenoid-operated diaphragm valves that combine the functions of safety shutoff and pressure regulation in a single unit.
    • V4943/V8943B,N are for use with natural gas.
    • V4943/V8943C are for use with LP gas.
    • Valve body of die-cast aluminum with a straight-through pattern.
    • V4943 are used with line voltage, on/off controllers; V8943 are used with 24 Vac thermostats or controllers;
    • Valve closes on power failure; recommended for final shutoff service.

    Product Specifications

    Dimensions (in.)
    6 9/16 in. high x 6 in. wide x 6 in. deep
    Dimensions (mm)
    167 mm high x 152 mm wide x 152 mm deep
    (2) 30" leadwires
    Upright (horizontal)
    60 Hz
    Approvals, Underwriters Laboratories Inc.
    File No. MH1639, Guide No. YIOZ (60 Hz only)
    Approvals, CSA
    Certificate No. 158158-1042930, Guide No. 3302-01, 81 (Z21.21, Z21.78)
    Electrical Connections
    1/4 in. (6 mm) spade terminals (quick connects). 30 in. (762 mm) leadwires and cover for electrical conduit connection provided.
    Power Consumption
    6.6 VA max; 6.6 VA
    120 Vac
    Operating Temperature Range (F)
    -40 F to +150 F
    Operating Temperature Range (C)
    -40 C to +66 C
    Current Ratings
    0.055 max amps at rated Vac/Hz
    Body Pattern
    Straight-through, non-offset
    Opening Characteristics
    Slow Opening 1-stage
    Pressure Ratings (psi)
    1/2 psi
    Pressure Ratings (kPa)
    3.4 kPa
    Type of Fuel
    Pipe Size (inch)
    1 in.
    Pipe Size (DN)
    Bleed Tapping
    5/16-24 UNF
    Pilot Tapping
    1/8-27 NPT
    Valve Opening Time
    3 to 25 sec
    Valve Closing Time
    2 sec max
    Pressure Regulator Setpoint (in. wc)
    Adj. Range, High Fire-- 3 in. wc to 4.5 in. wc; Factory Setting, High Fire-- 3.5 in. wc