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Compressed Air and Ring Main 

Hydraulic 

Industrial 

Pneumatics and Vacuum 

Process Valves and Instrumentation 

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 51 Series 

 Quick Release Couplings and Plugs 

 Walther Profile

Interchangeability: Rectus Design. Material: Brass Nickel Plated, Nitrile Seal. Application: Robust Steel Coupling for Compressed Air.

1/4" BSPP Female Plug

1/4" BSP Parallel Female Coupling, Series 51KB, Standard, Pneumatic Quick Release, Valved, Brass Nickel Plated, Nitrile Seal, Working Temperature -20°C to +100°C, Maximum Working Pressure 50 bar, Parker Rectus

3/8" BSPP Female Plug

3/8" BSP Parallel Female Coupling, Series 51KB, Standard, Pneumatic Quick Release, Valved, Brass Nickel Plated, Nitrile Seal, Working Temperature -20°C to +100°C, Maximum Working Pressure 50 bar, Parker Rectus

1/2" BSPP Female Plug

1/2" BSP Parallel Female Coupling, Series 51KB, Standard, Pneumatic Quick Release, Valved, Brass Nickel Plated, Nitrile Seal, Working Temperature -20°C to +100°C, Maximum Working Pressure 50 bar, Parker Rectus

Interchangeability: Rectus Design. Material: Brass Nickel Plated. Application: Robust Steel Coupling for Compressed Air.

3/8" BSPP Female Coupling

3/8" BSP Parallel Female Plug, Series 51KB, Standard, Pneumatic Quick Release, Non Valved, Brass Nickel Plated, Working Temperature -20°C to +100°C, Maximum Working Pressure 50 bar, Parker Rectus

1/4" BSPP Male Coupling

1/4" BSP Parallel Male Plug, Series 51KB, Standard, Pneumatic Quick Release, Non Valved, Brass Nickel Plated, Working Temperature -20°C to +100°C, Maximum Working Pressure 50 bar, Parker Rectus

1/4" BSPP Female Coupling

1/4" BSP Parallel Female Plug, Series 51KB, Standard, Pneumatic Quick Release, Non Valved, Brass Nickel Plated, Working Temperature -20°C to +100°C, Maximum Working Pressure 50 bar, Parker Rectus

6MM HOSE TAIL

Pneumatic Quick Release, Series 51KB, Standard, Plug, Hose Tail, To Suit Hose Inside Diameter 6mm (1/4"), Non Valved, Brass Nickel Plated, Working Temperature -20°C to +100°C, Maximum Working Pressure 50 bar, Parker Rectus

1/2" BSPP Male Plug

1/2" BSP Parallel Male Coupling, Series 51KB, Standard, Pneumatic Quick Release, Valved, Brass Nickel Plated, Nitrile Seal, Working Temperature -20°C to +100°C, Maximum Working Pressure 50 bar, Parker Rectus

3/8" BSPP Male Coupling

3/8" BSP Parallel Male Plug, Series 51KB, Standard, Pneumatic Quick Release, Non Valved, Brass Nickel Plated, Working Temperature -20°C to +100°C, Maximum Working Pressure 50 bar, Parker Rectus

51 Series

Walther Profile

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