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HB Fitting Union

HB Fitting Union

The HB fitting is subject to Schedule 40, 80 of the JIS G 3454 Carbon Steel Pipes for Pressure Service pipe lines. Please use this HB fitting in connecting water supply piping and inert gas (CO2) fire extinguishing equipment, etc.


Part Number

Configured Part Number is shown.

Part Number
Part NumberVolume DiscountDays to ShipNominal of Thread M1 Operating Temperature Range
62 Day(s) or more 1/2B(15A)-29~288
62 Day(s) or more 3/4B(20A)-29~288
62 Day(s) or more 1B(25A)-29~288
62 Day(s) or more 1 1/4B(32A)-29~288
62 Day(s) or more 1 1/2B(40A)-29~288
62 Day(s) or more 2B(50A)-29~288
62 Day(s) or more 3B(80A)-29~288


  1. 1

Basic Information

Type Fitting Connection Type Screw⇔Screw Same Diameter・Different Type Connecting Shape Union
Material Steel Connection Thread Type M1 Rc Max. Operating Pressure(MPa) 4.1
Applicable Fluid Water / Air / Steam / Gas / Oil Surface Treatment Hot zinc plating Divisions of Max. Operating Pressure than 2.0Mpa
Interior Resin Lining No

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