These vent all pressure before uncoupling

Parker Safety Quick Connect Air Couplers - E-z-mate EZ-751-12FP

ISO 4414 Industrial Interchange, Safety Quick Connect Air Couplers - E-z-mate Series | #EZ-751-12FP

E-z-mate Series exhaust - venting coupler with female thread

Technical Specifications

Body Size (inch):3/4

Connection Thread Size (inch):3/4 - 14

Connection Hose I.D. (inch):na

Thread Style:Female

Connection Type:NPTF

Maximum Operating Pressure:300 psi

Media:Compressed air

Coupling Half:Coupler

Minimum Operating Temperature:-40 F

Maximum Operating Temperature:250 F

Seal Material:Nitrile

Valve Type:Tubular

Body Material:Steel

Application:Air

Plating Type:Zinc with clear trivalent chromate on steel body

Specifications Met:Connects with pneumatic Industrial Interchange nipples A-A-59439 (MIL-C-4109F, ISO 6150-B)

Sleeve Type:Push to connect

Special Option:Exhaust - venting

Lock Type:Locking balls

Item Information

E-z-mate Series Quick Connect Air Couplers, up to 300 psi, connect with Industrial Interchange Nipples. Parker's E-z-mate Series are pressure venting style, push to connect couplers that turn the air flow on and off with a simple twist. These pressure venting style couplers allow disconnection at zero pressure to avoid dangerous hose whip. E-z-mate Series meets ISO 4414 requirements for a controlled pressure release system