Button valve DVGW-28 DVGW-28A

E.03. - G 1/4", 3/8", 1/2"

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• Datasheet

Description

• body material- nickeled brass
• button material- nickeled brass
• closure material- nickeled brass
• compression spring: SS DIN 17224
• sealing: NBR O-ring
• connection: steel B16 DIN 7993 Zn

Application

• air-conditioning
• power engineering
• petrochemical industry

Technical parameters

• connection thread: inner G1/2 (DVGW-28A),
• inner G1/4, 3/8, 1/2 (DVGW-28)
• PN(pressure): 4 bar
• pressure check 0,5 - 10bar

Specification

Button valves DVGW-28, DVGW28A are designed as a special closing armature for pressure gauges measuring gas medium. Basic purpose is the pressure gauge function check and verification of the zero point. This allowes replacement of the pressure gauge while the whole system is fully operational. Max. working temperature is 70°C. Button valves can be used for closing of air, gasses or gas fuels.