Valve Finder

Underground ball valve

Series 157/S/HG, welding / welding, EN (DIN), full bore, DN 150-400, PN 25

DN 150-250

Materials

Body
DN 150-350: Steel, P235GH (1.0345)
DN 400: Steel, P355 NL1 (1.0566)/ GP240GH (1.0619)
Ball
DN 150-400: Stainless steel, X5CrNi18-10 (1.4301)
Ball seal
DN 150-400: PTFE+C
Stem
DN 150-400: Stainless steel, X8CrNiS18-9 (1.4305)
Stem seal
DN 150-400: FPM
Top of Stem
DN 150-400: Stainless steel, X5CrNi18-10 (1.4301)

Mounting

welding / welding, EN (DIN)

Operation

DN 150-400
valves are available with angle gear standard hexagon adapter 27 or 32 mm

Operating conditions

Temperature
-20 °C - +200 °C
Leakage rate
A (EN 12266-1)

Below -20 °C contact manufacturer. Lowest allowed ambient temperature -40 °C.

DN 150-400
water area
Steam area (not allowed)
short-term working area

Dimensions

DN 150-400
DN 150-300
DN 150-400
DN 350-400
DNPNProduct no.DD1D2D3H1H2H3H4LL1L2SW1W2Kg
15025157150/S/HG150.0168.3273.076.1490.040633471335084.01494.58119859
20025157200/S/HG200.0219.1355.688.9525.041532776540097.01625.09020889
25025157250/S/HG250.0273.0419.0101.6570.0434341799530138.02225.014123598
30025157300/S/HG290.0323.9508.0114.3603.0440329832686138.02225.6141235210
35025157350/S/HG340.0355.6610.0168.3680.0502350909762138.02226.3150235370
40025157400/S/HG390.0406.0660.0178.0720.0516350946914182.02677.1188236651

Product number conversions

Product no.Old Naval No
157150/S/HG234694
157200/S/HG234695
157250/S/HG234696
157300/S/HG234697
157350/S/HG234698
157400/S/HG234699

Technical documentation for the product

  1. Operation manuals

    1. Underground ball valves, installation, operation and maintenance manual

      Underground ball valves, installation, operation and maintenance manual

      PDF
    2. Ball valve kv values chart

      Ball valve kv values chart

      PDF
    3. Underground ball valves, coupling dimensions

      Underground ball valves, coupling dimensions

      PDF
    4. Ball valve operating torques

      Ball valve operating torques

      PDF