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Water valves

    Thread Made in compliance with standard Compatibility Type of sealing
G G parallel pipe thread of a connection with sealing not obtained on the thread ISO 228 external G thread can only be connected with internal G thread sealing obtained by pressing together two flat surfaces and additional gasket or on 60° cone
Rp Rp R internal parallel pipe thread connection with seal created on the thread ISO 7 internal Rp thread can only be connected with external R thread sealing on thread e.g. by means of tape or PTFE sealing cord
R external taper pipe thread connection with seal created on the thread external R thread can only be connected with internal G or Rp thread
  Type of threads Nominal pressure Maximum operating temperature Full flow accord. to standard Packing gland allowing to compensate margins Operating medium National Hygiene Institute attest Warranty
Herkules Rp, R 4,0 MPa (40 bar) 140°C + + H2O, glikol 50%, sprężone powietrze + 15 years
Normal G 2,5 MPa (25 bar) 100°C + + H2O + 10 years
Standard G 1,6 MPa (16 bar) 100°C reduced + H2O + 5 years