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Christmas / New Year shipping times
Our central warehouses will be closed from 23.12.2024 to 01.01.2025. Incoming orders will not be shipped during this period. If necessary, you are welcome to use our branch network during this time. Customer service will be available as usual.

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RD HJ

Non-return valve, connector
Sealing form 1 + 2
37° external cone 
Connection 1 + 2
UN male thread, parallel 
Construction type
non-return valve, connector 
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Characteristics

Sealing form 1 + 2
  • 37° external cone 
Connection 1 + 2
  • UN male thread, parallel 
Construction type
  • non-return valve, connector 
Material
  • steel 
Surface
  • electro galvanised 
Customs tariff number
  • 84813091 
All characteristics

Product description

Ordering information
Also available with opening pressure of 0.2; 0.5; 2; 3; 5; 6 bar.

Product variants

8 Results
Show dimensional drawing
Identifier
Response pressure
G1
Working pressure
L1 (mm)
Price / items
approx. 1 bar 
UNF 7/16″ -20 
PN 350 
52.5 mm
approx. 1 bar 
UNF 9/16″ -18 
PN 350 
61.5 mm
approx. 1 bar 
UNF 3/4″ -16 
PN 315 
69.5 mm
approx. 1 bar 
UNF 7/8″ -14 
PN 315 
78.5 mm
approx. 1 bar 
UN 1.1/16″ -12 
PN 250 
87.5 mm
approx. 1 bar 
UN 1.5/16″ -12 
PN 250 
92.5 mm
approx. 1 bar 
UN 1.5/8″ -12 
PN 250 
105.5 mm
approx. 1 bar 
UN 1.7/8″ -12 
PN 140 
118.5 mm
PN = nominal pressure (bar)
PB = max. operating pressure (bar)
HEX = SW, S1, S2, S3 = width across flats

Column selection

Response pressure
G1
Working pressure
L1 (mm)
S1
S2
PN = nominal pressure (bar)
PB = max. operating pressure (bar)
HEX = SW, S1, S2, S3 = width across flats