霍夫曼专业对流蒸汽排气阀
Hoffman Specialty Convector Steam Vents

美国贝尔-高赛特
Bell & Gossett

Model 1B

Part No. 401425

Air Valve (non-vacuum)

Float-type vent
Adjustable port for true proportional venting – 6 port settings from slow (1) to fast (6)
Telescopic siphon tube
1⁄4″ NPT straight shank
Maximum operating pressure 11⁄2 psig (0.1 bar)*
Maximum pressure 10 psig (0.7 bar)

Model 41 Part No. 401455

Model 43 Part No. 401458

Model 45 Part No. 401461

Air Valve (non-vacuum)

Single non-adjustable port
For small steam systems
Telescopic siphon tube with angle cut assures drainage
1⁄8″ NPT straight shank (41) - 1⁄4″ NPT straight shank (43) - 1⁄2″ NPT female and 3⁄4″ NPT male straight shank (45)
Maximum operating pressure 6 psig (0.4 bar)*
Maximum pressure 10 psig (0.7 bar)

Model 71A Part No. 401470

Model 71B Part No. 401464

Model 71C Part No. 401467

Air Valve (non-vacuum)

Float-type vent
Single non-adjustable port
Meets Federal Specification WW-V-151 for Type 1 Non-Adjustable Valves
Telescopic siphon tube with angle cut assures drainage
1⁄8″ NPT straight shank (71A) - 1⁄4″ NPT straight shank (71B) - 1⁄2″ NPT female and 3⁄4″ NPT male straight shank (71C)
Maximum operating pressure 11 psig (0.8 bar)*
Maximum pressure 15 psig (1.0 bar)

Parts Lists

HS 800C Hoffman Specialty Service Parts Catalog

Catalog Pages

HS 900E Hoffman Specialty General Catalog

Bell & Gossett offers several useful engineering tools for easy sizing of every area of a building. Simple to navigate software gives you accurate information and up-to-date documentation downloadable straight into your submittal package.

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ESP-Design Plus	Bell & Gossett: Multi-Stage, Pressure Booster Packages, Wastewater, Vertical Turbines
ESP-Plus	Bell & Gossett Pump Selection: Circulators, End Suction, Closed-Coupled, Inline, Double Suction
ESP-Tanks	Bell & Gossett Compression/Expansion Tanks and Accessories (downloadable app)
ESP-Thermal	Bell & Gossett Gasket Plate & Frame and, Brazed Plate Heat Exchangers
ESP-UTUBE	Bell & Gossett U-Tube Heat Exchangers
ESP-Parts	Parts Selection
Steam-2000	Steam 2000 Selection
Steam-1140	Series 1140 Steam Service Regulators
Water-1140	Series 1140 Water Service Regulators
Steam-Traps	Steam Traps Selection
CAD Drawings	CAD Drawings
System Syzer	System Syzer (available online, PC download, and iOS app)
System Syzer Psychrometry	System Sizing related to coil cooling (link downloads .exe file)
Steam-Pipe	Steam Pipe Sizing
Steam-Loss	Steam Loss Through Failed Trap
Flash-Steam	Flash Steam Sizing
Condensate-Pipe	Condensate Pipe Sizing
Mobile Catalog iOS	iPhone & iPad Mobile Product Catalog
Mobile Catalog Android	Android Device Mobile Product Catalog

霍夫曼专业对流蒸汽排气阀Hoffman Specialty Convector Steam Vents

霍夫曼专业对流蒸汽排气阀
Hoffman Specialty Convector Steam Vents