Two brass compression fittings with knurled grip and threaded ends, shown side by side as plumbing adapters
Nominal Diameter 5mm

347 Series | Double Shut Off Quick Release Couplings & Plugs

347 series coupling, internationally the most common profile for this nominal diameter, in double shut-off design. Above average flow performance for liquid gaseous media. Large range of materials and valve variants available.

Technical drawing of a stepped cylindrical connector with three diameters (Ø8.1, Ø8.9, Ø6.7) and total height 14; part number 347.

Male Thread BSPP Coupling

Part Number Thread Length Diameter
347CDMP14BNX 1/4" 38mm 17mm
347CDMP18BNX 1/8" 37mm 17mm
347CDMP38BNX 3/8" 38mm 17mm
347CDMM01BNX M10 x 1 37mm 17mm
347CDMM21BNX M12 x 1,5 39mm 17mm
347CDMM41BNX M14 x 1,5 39mm 17mm

Female Thread BSPP Coupling

Part Number Thread Length Diameter
347CDFP14BNX 1/4" 38mm 17mm
347CDFP18BNX 1/8" 37mm 17mm
347CDFP38BNX 3/8" 47mm 17mm
347CDFM01BNX M10 x 1 38mm 17mm
347CDFM21BNX M12 x 1,5 38mm 17mm
347CDFM41BNX M14 x 1,5 38mm 17mm

Hosetail Coupling

Part Number Hosetail Length Diameter
347CDHT04BNX 4mm 47mm 17mm
347CDHT05BNX 5mm 46mm 17mm
347CDHT06BNX 6mm 46mm 17mm
347CDHT08BNX 8mm 46mm 17mm
347CDHT09BNX 9mm 46mm 17mm

Bulkhead To Hosetail Coupling

Part Number Hosetail Length Diameter
347CDBH04BNX 4mm 60mm 17mm
347CDBH06BNX 6mm 60mm 17mm
347CDBH09BNX 9mm 60mm 17mm

Tube Connection Coupling

Part Number Length Diameter Tube Size
347CDTC06BNX 42mm 17mm 4 x 6mm
347CDTC08BNX 42mm 17mm 6 x 8mm

Tube Connection Coupling With Spring

Part Number Length Diameter Tube Size
347CDTS06BNX 120mm 17mm 4 x 6mm
347CDTS08BNX 120mm 17mm 6 x 8mm

Bulkhead Tube Connection Coupling

Part Number Length Diameter Tube Size
347CDBT06BNX 42mm 17mm 4 x 6mm
347CDBT08BNX 42mm 17mm 6 x 8mm

Male Thread BSPP Plug

Part Number Length Thread
347PDMP14BNX 42mm 1/4"
347PDMP18BNX 40mm 1/8"
347PDMP38BNX 42mm 3/8"
347PDMM21BNX 44mm M12 x 1,5
347PDMM41BNX 44mm M14 x 1,5

Female Thread BSPP Plug

Part Number Length Thread
347PDFP14BNX 42mm 1/4"
347PDFP18BNX 42mm 1/8"
347PDFP38BNX 43mm 3/8"
347PDFM21BNX 42mm M12 x 1,5
347PDFM41BNX 42mm M14 x 1,5

Hosetail Plug

Part Number Hosetail Length
347PDHT04BNX 4mm 50mm
347PDHT06BNX 6mm 46mm
347PDHT08BNX 8mm 46mm
347PDHT09BNX 9mm 46mm

Bulkhead To Hosetail Plug

Part Number Hosetail Length
347PDBH04BNX 4mm 64mm
347PDBH06BNX 6mm 64mm
347PDBH09BNX 9mm 64mm

Tube Connection Plug

Part Number Length Tube Size
347PDTC06BNX 47mm 4 x 6mm
347PDTC08BNX 47mm 6 x 8mm

Tube Connection Plug With Spring

Part Number Length Tube Size
347PDTS06BNX 135mm 4 x 6mm
347PDTS08BNX 135mm 6 x 8mm

Bulkhead Tube Connection Plug

Part Number Length Tube Size
347PDBT06BNX 58mm 4 x 6mm
347PDBT08BNX 58mm 6 x 8mm

Advantages

  • Single handed operation.
  • Small dimensions.

Technical Specifications

Coupling Specifications

Back Body: Brass (MS 58)

Valve Body: Brass (MS 58)

Sleeve: Brass (MS 58)

Spring: Stainless Steel 301

Locking Balls: Stainless Steel 301

Plug Specifications

Plug: Brass (MS 58)

Valve: Brass (MS 58)

Body: Brass (MS 58)

Spring: Stainless Steel 301

Seal: NBR

Working Limits

Working Temperature

-20°C to +100°C (NBR)

-40°C to +130°C (EPDM)

-15°C to +200°C (Viton)

Depending on Medium

Working Pressure

35 Bar

Maximum static working pressure with safety factor 4:1

Interchangeability

Interchangeable With:
  • Parker-Rectus 21 KB
Download Product Information