Two brass pneumatic fittings: a larger knurled coupling on the left and a smaller adapter on the right.
Nominal Diameter 13mm

431 Series | Double Shut Off ISO 7241-1B Quick Release Couplings & Plugs

431 series is a small double shut off coupling conforming to ISO 7241-1 SERIES B, offering above average flow for liquid gaseous media.

Related Series

Single Shut Off CouplingsSingle Shut Off CouplingsVersion not available
Double Shut Off CouplingsDouble Shut Off CouplingsThis Series (431)
Straight Through CouplingsStraight Through CouplingsVersion not available
Safety CouplingsSafety CouplingsVersion not available
Technical drawing of a stepped cylindrical component with a top cap and base labeled 431, showing overall height and three diameter dimensions.

Female Thread BSPP Coupling

Part Number Termination Length Diameter
431CDFP34BNX 3/4" 94mm 53mm

Female Thread BSPP Plug

Part Number Termination Length
431PDFP34BNX 3/4" 60mm

Advantages

  • Twin handed operation
  • ISO-B Series

Technical Specifications

Coupling Specifications
Materials
Performance

Working Limits

Working Temperature

-20°C to +100°C (NBR) | -40°C to +130°C (EPDM) | -15°C to +200°C (Viton)

Working Pressure

138 Bar (safety factor 4:1)

Maximum static working pressure with safety factor 4:1

Interchangeability

Interchangeable With:
  • Danfoss Hansen HK5 ISO-B
  • Parker-Rectus 75 KB
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