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.

Features

• 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

Materials

Body--Aluminum

Comments

(2) 30" leadwires

Mounting

Upright (horizontal)

Frequency

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

Voltage

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

Natural

Pipe Size (inch)

1 in.

Pipe Size (DN)

DN25

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