A Type Coupler 5/8 BSP – Without PRV – Gas Inlet 3/8″ JG – Flat Handle – AISI 304 Body & SS304 Probe – Tarpado NRV
SKU: C4998
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- Features
- Specifications
- Installation Instruction
A Type Coupler 5/8 BSP – (C4998)
The A Type Coupler 5/8 BSP is engineered for professional draft beer systems using A System (slider-type) kegs. Manufactured entirely from AISI 304 stainless steel, including the probe, this coupler ensures hygienic beer contact, corrosion resistance, and long-term durability in commercial environments.
It features a 5/8″ × 14 BSP threaded beer outlet, providing a secure and leak-free connection to standard draft beer lines. The 3/8″ John Guest (JG) push-in gas inlet allows fast, tool-free gas line installation, making it ideal for modern draft setups and compact installations.
Designed without a Pressure Relief Valve (PRV), this coupler is suitable for systems where pressure control is handled externally. The flat handle offers smooth engagement and is especially useful in low-clearance or tight-space installations.
Click to see all A system keg couplers.
Features
- Compatible with A System (A Type) kegs
- AISI 304 stainless steel body for durability and hygiene
- SS304 probe ensures clean, corrosion-resistant beer flow
- 5/8″ BSP beer outlet for standard draft connections
- 3/8″ JG push-in gas inlet for quick, secure installation
- PRV-free design for externally regulated systems
- Flat handle for compact, easy operation
- Ideal for commercial bars, breweries, and draft installations
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Features
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Compatible with A System (European A-Type) keg valves
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AISI 304 stainless steel body ensures strength and corrosion resistance
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SS304 probe provides sanitary beer contact
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5/8″ BSP beer outlet for universal draft line compatibility
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3/8″ JG push-in gas port for quick CO₂ line connection
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Tarpado NRV for stable gas flow and back-pressure protection
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Flat handle for compact, easy tapping
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No PRV – ideal for controlled dispensing setups
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Suitable for bars, breweries, taprooms, and mobile draft units
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| System Type | A System |
| Body Material | AISI 304 |
| Prob Material | Stainless Steel 304 |
| Beer Port | 5/8''X14 BSP |
| Gas Port | 3/8'' Push in Fitting |
| Pressure Relief Valve (PRV) | Not Included |
| Handle Style | Flat Handle |
Installation Instructions
To install your keg coupler to your kegerator, you must first attach the Co2 Regulator to the CO2 cylinder. Make sure that the cylinder is filled and the valve is closed. Then, securely pair up the regulator to the CO2 cylinder. Attach the gas line to the “gas out” port on the regulator and secure in place with a clamp. Then, attach the other end of the gas line to the “gas in” port on the coupler. Next, attach the beer line to the liquid out port on the coupler.
Now, you are ready to connect the coupler to the keg. Ensure that the CO2 cylinder vale is in the “off” position and the pull handle of the coupler is in the diagonal/upper position. Find the locking neck on the kegerator, and turn the coupler clockwise 25°. Then, pull out on the handle, push it down into the keg valve and release the handle. This will lock the coupler in place and securely attach it to the kegerator.
With the coupler attached to the keg, slowly turn on the CO2 cylinder. At this point, you will hear gas flowing from the CO2 cylinder and regulator through the keg coupler and into the keg. Pull on the pressure relief valve to allow gas to vent and give you an accurate reading on the pressure gauge, then calibrate the regulator to the recommended serving pressure for your beer. You are now ready to serve your own draft beer.
