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Vertical safety reflux valve AH42F-16/25/40

Features

Applicable to gas or other weakly corrosive media system pipelines. When the pressure difference between the inlet and outlet of the valve reaches the rated pressure value, the valve automatically opens to allow the medium to flow back into the pipeline s

Technical Parameters


Technical Parameters

Nominal pressure Mpa 1.6 2.5 4.0
Shell test pressure Mpa 2.4 3.75 6.0
Inlet and outlet pressure difference Mpa 0.5MPa
Applicable temperature -29℃-+80℃
Applicable media Liquefied petroleum gas, weakly corrosive media, etc.
Flange Standard GB/T9113-2000

Main parts materials

Valve body Valve stem Valve disc spring Valve Seat Gasket
WCB 20Cr13 ZG20Cr13,H62 50CrVA 20Cr13 PTFE

Vertical safety reflux valve AH42F nominal pressure PN2.5MPa dimensions and connection dimensions

DN L L1 D D1 D2 d0 b f Z-φd DN’ D’ D1’ D2’ b’ f’ Z-φd’ H
40 120 110 150 110 84 25 18 3 4-φ18 50 165 125 99 20 3 4-φ18 279
50 135 120 165 125 99 32 20 3 4-φ18 65 185 145 118 20 3 4-φ18 306
80 170 135 200 160 132 50 24 3 8-φ18 100 220 180 156 22 3 8-φ18 429
100 205 160 235 190 156 65 24 3 8-φ22 125 250 210 184 22 3 8-φ18 530
150 250 210 300 250 211 100 28 3 8-φ26 200 340 295 266 24 3 12-φ22 730
200 305 260 360 310 274 125 30 3 12-φ26 250 405 355 319 26 3 12-φ26 883