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HB Fitting Nipple

HB Fitting Nipple

Please use the HB fitting for inert gas (CO2) fire extinguishing equipment piping and integrated hydrants that use carbon steel pipe schedule 40 and 80 for JIS G 3454 pressure piping.

· If the water-feeding pressure [pressure of the feed outlet if the water-feeding pressure rises above 0.6 MPa at the nozzle tip (the pressure specified by the fire chief/marshal for effective use as a fire prevention fog gun] of the integrated hydrant system pipes exceeds 1MPa, use schedule 40 pipes or higher with an internal nominal thickness that complies with JIS G 3448/G 3454, or schedule 10 pipes or higher with an internal nominal thickness that complies with JIS G 3459.


Japanese Only

Part Number

Configured Part Number is shown.

Part Number
Part NumberVolume DiscountDays to ShipNominal of Thread M1 Operating Temperature Range
4 Day(s) or more 2 1/2B(65A)-29~288
4 Day(s) or more 4B(100A)-29~288
5 Day(s) or more 5B(125A)-29~288


  1. 1

Basic Information

Type Fitting Connection Type Screw⇔Screw Same Diameter・Different Type Material Steel
Connection Thread Type M1 R Max. Operating Pressure(MPa) 13.8 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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