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RD HJ

Non-return valve, connector

Connection 1 + 2
UN/UNF external threads 
Sealing form 1 + 2
74° outer cone 
Design
Non-return valve, connector 
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Please choose a variant
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Characteristics

Connection 1 + 2
  • UN/UNF external threads 
Sealing form 1 + 2
  • 74° outer cone 
Design
  • Non-return valve, connector 
Material
  • Steel 
Surface
  • electro galvanised 
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
Opening pressure
Opening pressure
Operating pressure
G1
L1 (mm)
S2
S1
Operating pressure
Opening pressure
Operating pressure
G1
L1 (mm)
S2
S1
G1
Opening pressure
Operating pressure
G1
L1 (mm)
S2
S1
L1 (mm)
Opening pressure
Operating pressure
G1
L1 (mm)
S2
S1
Details / items
approx. 1 bar  
PN 350  
7/16"-20 UNF  
52.5  mm
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approx. 1 bar  
PN 350  
9/16"-18 UNF  
61.5  mm
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approx. 1 bar  
PN 315  
3/4" -16 UNF  
69.5  mm
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approx. 1 bar  
PN 315  
7/8" -14 UNF  
78.5  mm
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approx. 1 bar  
PN 250  
1.1/16" -12 UN  
87.5  mm
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approx. 1 bar  
PN 250  
1.5/16" -12 UN  
92.5  mm
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approx. 1 bar  
PN 250  
1.5/8" -12 UN  
105.5  mm
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approx. 1 bar  
PN 140  
1.7/8" -12 UN  
118.5  mm
Learn more
PN = Nominal pressure
PB = Max. operating pressure
SW, S1, S2, S3 = With across flats
PN = Nominal pressure
PB = Max. operating pressure
SW, S1, S2, S3 = With across flats
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