- Hand-operated stop-check valves, with two possibilities:
Valve in open position - Working as Check valve.
Valve en close position - Working as Stop valve.
- Designed and calculated according to AD-Merkblatt, with welding procedure and welders, homologated
- The standard spring is calculated to cause a pressure drop with the valve open, lower than 0,1 Bars, for another Δp consult please..
- Renewable Teflon disc and integral seat