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Check valves
  Z15.3 PN 63–500
PN 320 - 500
DN 10 - 50
Operating temperature:- 60°C to 580°C
Application: gasses, liquids, steam and aggressive fluids
Z15.2 PN 63-500

PN 63-500 
DN 10-50
Working temp.:- 196°C to +600°C, other on request
Material: forged steel - carbon, alloy, stainless
Application: water, steam, gas, oil, crude oil products, aggressive and non-aggressive fluids

  Z15.4 PN 63-160

PN 63-100
DN 50-150
Working temp.:- 10°C to +550°C, other on request
Material: cast steel - carbon, alloy, stainless
Application: water, steam, gas, oil, crude oil products, non-aggressive fluids

Z15 PN 160–400

PN 160-400
DN 65-150
Working temp.:- 10°C to +550°C, other on request
Material: cast steel - carbon, alloy, stainless
Application: water, steam, gas, oil, crude oil products, non-aggressive fluids