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RD HJ

Non-return valve, connector
Connection 1 + 2
UN/UNF external threads 
Sealing form 1 + 2
37° external cone 
Construction type
non-return valve, connector 
Download PDF

Characteristics

Connection 1 + 2
  • UN/UNF external threads 
Sealing form 1 + 2
  • 37° external cone 
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)
Details / items
approx. 1 bar  
7/16″ -20 UNF  
PN 350  
52.5  mm
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approx. 1 bar  
9/16″ -18 UNF  
PN 350  
61.5  mm
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approx. 1 bar  
3/4″ -16 UNF  
PN 315  
69.5  mm
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approx. 1 bar  
7/8″ -14 UNF  
PN 315  
78.5  mm
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approx. 1 bar  
1.1/16″ -12 UN  
PN 250  
87.5  mm
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approx. 1 bar  
1.5/16″ -12 UN  
PN 250  
92.5  mm
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approx. 1 bar  
1.5/8″ -12 UN  
PN 250  
105.5  mm
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approx. 1 bar  
1.7/8″ -12 UN  
PN 140  
118.5  mm
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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