shutoff valves
V4944B, L, N/8944B, C, L, N Two-stage pressure regulating gas valves
V4944B, L, N/8944B, C, L, N are Two-stage Pressure Regulating Gas Valves. These valves are used on boilers, unit heaters, duct furnaces, makeup air and rooftop heaters.
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Overview
Designed for replacement for V4844/V8844 Gas Valves. Suitable for use on atmospheric boilers, commercial water heaters, and rooftop heaters.
Features & Benefits:
Features & Benefits:
- Designed for replacement for V4844/V8844 Gas Valves
- Suitable for use on atmospheric boilers, commercial water heaters, and rooftop heaters
- V4944/V8944B, C, L, N models are solenoid-operated diaphragm valves that combine the functions of safety shutoff and pressure regulation in a single unit
- V4944/V8944B, N are for use with natural gas
- V4944/V8944C, L are for use with LP gas
- Valve body of die-cast aluminum with a straight-through pattern
- V4944 are used with line voltage, dual-stage controllers; V8944 are used with 24 Vac dual-stage thermostats or controllers
- Valve closes on power failure; recommended for final shutoff service
- Bleed Tapping: Two 5/16-24 UNF
- Pilot Tapping: 1/8-27 NPT
- Body Pattern: Straight-through, non-offset
- Valve Closing Time: 2 sec max
- Mounting: Upright (horizontal)
- Materials: Body – Aluminum
- Voltage: V4944-120 Vac; V8944-24 Vac
- Frequency: 60 Hz
- Power Consumption: V4944-9 VA max; V8944-12.4 VA max
- Electrical Connections: 1/4 in. (6 mm) spade terminals (quick connects), leadwires and cover for electrical conduit connection provided.
- Operating Temperature Range: -40°F to +150°F (-40°C to +66°C)
- 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)
- Pressure Ratings (psi): 1/2 psi
- Pressure Ratings (kPa): 3.4 kPa
- Current Ratings: V4944-0.077 max amps at rated Vac/Hz; V8944-0.516 max amps at rated Vac/Hz
Specifications
Overview
- Models
- V4944N1086, V4944N1094, V4944N1102
Environmental Conditions
- Ambient Temperature Range
- -40 to +150 deg F (-40 to +66 deg C)
Fluid/Media/Component Temperatures
- Fluid Temperature Range
- 150 deg F (66 deg C)
Connections & Interfaces
- Electrical Connections
- 1/4 in spade terminals
- Leadwires and conduit cover included
Electrical Specifications
- Maintenance Interval
- Periodic leak testing and regulator verification recommended
- Voltage Rating
- V4944: 120 VAC, 60 Hz (line‑voltage, dual‑stage control)
- V8944: 24 VAC (dual‑stage control)
Material Specifications
- Valve Body Material
- Die-Cast Aluminum
Processing & Performance Metrics
- Flow Capacity Range
- Approximately 400 kBtu/h to 5,000 kBtu/h, size and application dependent
Installation & Mounting Specifications
- Mounting Position
- Horizontal upright (electrical tower up); limited horizontal allowed
Actuation, Valve & Motion Control Specifications
- Valve Pattern
- Straight-through, non-offset
- Opening Time
- Rapid opening (<6 seconds)
- Closing Time
- Fast closing (≤2 seconds on power failure)
- Valve Type
- Two‑stage, solenoid‑operated diaphragm gas valves with pressure regulation
Applications & Compatibility
- Applications
- Boilers, unit heaters, duct furnaces, makeup‑air units, rooftop heaters, ovens, incinerators, and commercial/industrial burners
Dimensions & Size Specifications
- Pipe Size
- 1 in, 1-1/4 in, 1-1/2 in NPT
Standards & Certifications
- Approvals
- File MH1639, Guide YIOZ, ANSI Z21.21 Compliance Valve leak test and allowable leakage rates
Fuel, Gas & Media Specifications
- Gas Type
- Natural Gas, LPG
Overview
- Models
- V4944N1086, V4944N1094, V4944N1102
Environmental Conditions
- Ambient Temperature Range
- -40 to +150 deg F (-40 to +66 deg C)
Fluid/Media/Component Temperatures
- Fluid Temperature Range
- 150 deg F (66 deg C)
Connections & Interfaces
- Electrical Connections
- 1/4 in spade terminals
- Leadwires and conduit cover included
Electrical Specifications
- Maintenance Interval
- Periodic leak testing and regulator verification recommended
- Voltage Rating
- V4944: 120 VAC, 60 Hz (line‑voltage, dual‑stage control)
- V8944: 24 VAC (dual‑stage control)
Material Specifications
- Valve Body Material
- Die-Cast Aluminum
Processing & Performance Metrics
- Flow Capacity Range
- Approximately 400 kBtu/h to 5,000 kBtu/h, size and application dependent
Installation & Mounting Specifications
- Mounting Position
- Horizontal upright (electrical tower up); limited horizontal allowed
Actuation, Valve & Motion Control Specifications
- Valve Pattern
- Straight-through, non-offset
- Opening Time
- Rapid opening (<6 seconds)
- Closing Time
- Fast closing (≤2 seconds on power failure)
- Valve Type
- Two‑stage, solenoid‑operated diaphragm gas valves with pressure regulation
Applications & Compatibility
- Applications
- Boilers, unit heaters, duct furnaces, makeup‑air units, rooftop heaters, ovens, incinerators, and commercial/industrial burners
Dimensions & Size Specifications
- Pipe Size
- 1 in, 1-1/4 in, 1-1/2 in NPT
Standards & Certifications
- Approvals
- File MH1639, Guide YIOZ, ANSI Z21.21 Compliance Valve leak test and allowable leakage rates
Fuel, Gas & Media Specifications
- Gas Type
- Natural Gas, LPG
- Models : V4944N1086, V4944N1094, V4944N1102
- Ambient Temperature Range : -40 to +150 deg F (-40 to +66 deg C)
- Fluid Temperature Range : 150 deg F (66 deg C)
- Electrical Connections : 1/4 in spade terminals|Leadwires and conduit cover included
- Maintenance Interval : Periodic leak testing and regulator verification recommended
- Valve Body Material : Die-Cast Aluminum
- Flow Capacity Range : Approximately 400 kBtu/h to 5,000 kBtu/h, size and application dependent
- Mounting Position : Horizontal upright (electrical tower up); limited horizontal allowed
- Voltage Rating : V4944: 120 VAC, 60 Hz (line‑voltage, dual‑stage control)|V8944: 24 VAC (dual‑stage control)
- Valve Pattern : Straight-through, non-offset
- Opening Time : Rapid opening (<6 seconds)
- Closing Time : Fast closing (≤2 seconds on power failure)
- Applications : Boilers, unit heaters, duct furnaces, makeup‑air units, rooftop heaters, ovens, incinerators, and commercial/industrial burners
- Valve Type : Two‑stage, solenoid‑operated diaphragm gas valves with pressure regulation
- Pipe Size : 1 in, 1-1/4 in, 1-1/2 in NPT
- Approvals : File MH1639, Guide YIOZ, ANSI Z21.21 Compliance Valve leak test and allowable leakage rates
- Gas Type : Natural Gas, LPG
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