VMV水波纹

SHT21 Thermostatic (Bimetallic) Steam Trap

SHT21 Thermostatic (Bimetallic) Steam Trap

Description

Working Principle

The working principle of the bimetallic trap is to rely on the different temperature between saturated steam and condense water.
When the set temperature is reached, the condensed water is continuously removed.

Features

The body and bonnet are all made of forged steel A105.
The disc and seat are made of special stainless steel with heat treatment.The disc hardness is as high as HRC55, which improves the service life of the steam trap.
Imported bimetallic ensure precise temperature control.
The closing system adopts high-precision wire sealing structure.
Built-in filter makes the trap work in a clean environment.
The back pressure rate is as high as 50% or more.

Technical StandardGB/T12250-2005 Steam Traps Terminology Marking Structure Length

GB/T22654-2008 Technical Conditions for Steam Traps
GB/T12251-2005 Test Method for Steam Traps
ISO 6948 Automatic steam traps
Production and performance characteristic tests

Technical Parameters

Nominal pressurePN25
Max. allowable pressure(Shell)2.45MPa/200C
Max. allowable temperature(Shell)450°C/1.03MPa
Factory steam action test>3 times/1.6MPa
Max. working pressure2.1MPa
Max. operating temperature350C
Factory cold test pressure3.8MPa
Air test2.0MPa

 

Bonnet: A105/F304/F316
Disc: Martensitic stainless steel
Body:A105/F304/F316
Other internal parts: Stainless steel
Seat: Martensitic stainless steel

SHT21 1

SHT21 2

SHT21 stucture diagram

ModelNominal sizeH9090150Weight
SHT21TDN15-25H11681681681.8 Kg
SHT21WDN15-25W1001001001.8Kg
SHT21FDN15-25L55551554Kg

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