naval underground ball valves ,
Air release valve / Long female threads / welding EN (DIN), DN 20-50, reduced bore

Materials

Body DN 20-50 : Stainless steel, X2CrNiMo17-12-2 (1.4404)
Extension Pipe DN 20-50 : Steel, P235GH (1.0345)
Ball DN 20-50 : Stainless steel, X2CrNiMo17-12-2 (1.4404)
Ball seal DN 20-50 : PTFE+C
Stem DN 20-50 : Stainless steel, X2CrNiMo17-12-2 (1.4404)
Stem seal DN 20-50 : FPM/NBR
Plug DN 20-50 : DZR brass

Operation

Equipment

DN 20-50 are equipped with:

plug

Operating conditions

-20 °C – +200 °C
Below -20 °C contact manufacturer
Lowest allowed ambient temperature -40 °C

Leakage rate A (EN 12266-1)

Pressure-temperature diagram DN 10–500

Dimension

DN 20-50

DNPNProduct no.DD1D2HH1HEXHEX19LL1L2L3RSS1kg
2025286035L1526.942.4632119195004844343512,641.5
2525286036L2033.748.3732719195004824253422,641.9
3225286037L2542.460.3762519195004794143053,24,52.8
4025286038L3248.370.0843127195004794032993,74,53.3
5025286039774060.388.9933227195004763862782,944.0

Product numbers and downloads

Product NoEANLVIRSKNRFMMDNPNKvPhotokg
286035L20251.5
286036L25251.9
286037L32252.8
286038L40253.3
2860397750254.0