Valve Finder

Underground ball valve

Series 157/S, welding / welding, EN (DIN), full bore, DN 25-350, PN 25

DN 25-125

Materials

Body
DN 25-350: Steel, P235GH (1.0345)
Ball
DN 25-350: Stainless steel, X5CrNi18-10 (1.4301)
Ball seal
DN 25-350: PTFE+C
Stem
DN 25-80: Stainless steel, X8CrNiS18-9 (1.4305)
DN 100-125: Stainless steel, X17CrNi16-2 (1.4057)
DN 150-350: Stainless steel, X8CrNiS18-9 (1.4305)
Stem seal
DN 25-350: FPM
Top of Stem
DN 25-350: Stainless steel, X5CrNi18-10 (1.4301)

Mounting

welding / welding, EN (DIN)

Operation

DN 25-125
available with a T-key
DN 150-350
available with portable planet gear

We recommend angle gear operation for sizes DN 150 and larger.

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 25-350
water area
Steam area (not allowed)
short-term working area

Dimensions

DN 25-350
DN 25-125
DN 150-300
DN 350
DNPNProduct no.DD1D2D3D4H1H2H3LS6K16K2Kg
2525157025/S25.033.760.333.736386.03693412602.6192.8
3225157032/S32.042.470.033.736400.03793502602.6193.0
4025157040/S40.048.388.933.736406.03823473002.9194.0
5025157050/S50.060.3101.642.436415.03843493002.9195.0
6525157065/S65.076.1121.042.436425.03863493003.2197.0
8025157080/S80.088.9146.060.360449.04053553253.62712.0
10025157100/S100.0114.3177.860.360454.03973443253.62723.0
12525157125/S125.0139.7219.160.360475.04053443603.62725.0
15025157150/S150.0168.3273.076.1517.04323493504.5509034.0
20025157200/S200.0219.1355.688.9560.04503504005.0509060.0
25025157250/S250.0273.0419.0101.6600.04643595305.6509094.0
30025157300/S290.0323.9508.0139.7636.04743506865.65090182.0
35025157350/S340.0355.6610.0139.7687.05093507626.35090288.0

Product number conversions

Product no.Old Naval No
157025/S234666
157032/S234667
157040/S234668
157050/S234669
157065/S234670
157080/S234671
157100/S234672
157125/S234673
157150/S234674
157200/S234676
157250/S234677
157300/S234678
157350/S234679

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