Valves
– Specifications
All our technical information for our John Guest Valves can be found here.
Acetal Stop Valves
Style and Description
Angle Stop Valves
Angle Stop Valves have an Acetal body, EPDM O-Rings, incorporate a single check valve and a 1/4 turn chromium plated ball valve.
The valves are for use with potable water. For use with other potable liquids please refer to our Customer Service Department for guidance.
Elbow Stop Valves
Elbow Stop Valves have an Acetal body, and are fitted with EPDM seals and a brass nut. Suitable for applications in the Drinks Dispense and Pure Water Industries.
Media / Application
✓ Potable Liquids
✘ Air / Vacuum
Sizes – Outside Diameter (OD) Pipe
- 3/8″ – 1/2″ – 15mm (Angle Stop Valves)
- 3/8″ (Elbow Stop Valves)
Maximum Working Pressure (kPa)
Angle Stop Valves
| Temperature | Pressure | |
|---|---|---|
| POTABLE LIQUIDS | 3/8″ – 1/2″ – 15mm | |
| -20°C | DO NOT FREEZE | |
| +1°C | 1200kPa | |
| +20°C | 1200kPa | |
| +65°C* | 600kPa | |
Note: Acetal Stop Valves are not to be used with compressed air, explosive gases, petroleum spirit and other fuels, or for heating systems.*NOT to exceed maximum temperature
White Polypropylene Shut-Off Valves
Style and Description
For Potable Water
The PP Range of shut-off valves are produced in polypropylene and fitted with EPDM seals. Polypropylene has the advantage of being more chemically resistant than acetal.
The valves are for use with potable water. For use with other potable liquids, please refer to our Customer Service Department for guidance.
Media / Application
✓ Potable Liquids
✘ Air / Vacuum
Sizes – Outside Diameter (OD) Pipe
- 1/4″ – 3/8″
- 6mm – 12mm
Maximum Working Pressure (kPa)
| Temperature | Pressure | |
|---|---|---|
| POTABLE LIQUIDS | 1/4″ – 3/8″ & 6mm – 12mm | |
| -20°C | DO NOT FREEZE | |
| +1°C | 1000kPa | |
| +20°C | 1000kPa | |
| +60°C* | 400kPa | |
*NOT to exceed maximum temperature
Note: The valves are not to be used with compressed air, explosive gases, petroleum spirit and other fuels, or for heating systems.
Grey Acetal Shut-Off Valves
Style and Description
For Liquids & Inert Gases
Acetal Shut-Off Valves have a full bore mechanism, and are especially designed for the Brewing and Soft Drinks Industries and for potable water. They are also suitable for air and inert gases such as N2/CO2 to a maximum temperature of 50°C (ensure products are installed in accordance with local codes of practice).
The range includes valves with short and long handles to operate a 1/4 turn on/off action. Some valves are available with or without mounting clips. Others have integral mounting bosses.
Media / Application
✓ Potable Liquids
✓ Air / Vacuum
Sizes – Outside Diameter (OD) Pipe
- 3/8″ – 1/2″
Maximum Working Pressure (kPa)
| Temperature | Pressure | |
|---|---|---|
| POTABLE LIQUIDS | 3/8″ – 1/2″ | |
| -20°C | DO NOT FREEZE | |
| +1°C | 1000kPa | |
| +23°C | 1000kPa | |
| +65°C* | 700kPa | |
| Temperature | Pressure | |
|---|---|---|
| AIR / VACUUM | 3/8″ – 1/2″ | |
| -20°C | 1000kPa | |
| +1°C | 1000kPa | |
| +23°C | 1000kPa | |
| +65°C* | 700kPa | |
*NOT to exceed maximum temperature
Single Check Valves
Style and Description
Single Check Valves Produced specifically for the drinks dispense industry, the Speedfit acetal Single Check Valve ensures protection against reversal of flow.
The low headloss design and fast installation time makes the valve the ideal selection. The valve is designed for use with liquids, it is not suitable for air and vacuum applications.
Media / Application
✓ Potable Liquids
✘ Air / Vacuum
Sizes – Outside Diameter (OD) Pipe
- 1/4″ – 3/8″
- 6mm – 12mm
Maximum Working Pressure (kPa)
| Temperature | Pressure | |
|---|---|---|
| POTABLE LIQUIDS | 1/4″ – 3/8″ & 6mm – 12mm | |
| -20°C | DO NOT FREEZE | |
| +1°C | 1000kPa | |
| +20°C | 1000kPa | |
| +65°C* | 700kPa | |
*NOT to exceed maximum temperature
Notes:
- Typical ‘crack open’ pressure 2kPa.
- Valves with low fixed cracking pressure (i.e 10cm water column), that have not been activated for some time may take several seconds to re-seal.
- It is the responsibility of the end user to verify that the product is suitable for the specific application.
- It is also recommended that the non-return valve is regularly checked and maintained.
Double Check & Service Valves
Style and Description
Double Check & Service Valves – Metric
Double Check Valves ensure the prevention of contamination arising from back syphonage, back flow and cross connection. A spring loaded internal check valve is sited either side of the test cock, and an arrow identifies the direction of flow. The low headloss design and fast installation time makes this unit the ideal selection. The valve can be mounted in any position.
Service Valves are ideally suited to provide a temporary shut-off facility in a drinks dispense situation. The valve consists of a ball mechanism operated by means of a screwdriver slot.
Service Valves – Imperial
Speedfit Service Valves are ideally suited to provide a temporary shut-off facility in a drinks dispense situation. The valve consists of a ball mechanism operated by means of a screwdriver slot. Push-to-connect fittings make for a fast installation time, especially in confined spaces.
The valve can also be used for domestic hot and cold water supplies.
Media / Application
✓ Potable Liquids
✘ Air / Vacuum
Sizes – Outside Diameter (OD) Pipe
- 15mm (Double Check & Service Valves – Metric)
- 1/2″ (Service Valves – Imperial)
Maximum Working Pressure (kPa)
Double Check & Service Valves – Metric
| Temperature | Pressure | |
|---|---|---|
| POTABLE LIQUIDS | 15mm | |
| -20°C | DO NOT FREEZE | |
| +1°C | 1200kPa | |
| +20°C | 1200kPa | |
| +65°C* | 600kPa | |
Services Valves – Imperial
| Temperature | Pressure | |
|---|---|---|
| POTABLE LIQUIDS | 1/2″ | |
| -20°C | DO NOT FREEZE | |
| +1°C | 1000kPa | |
| +20°C | 1000kPa | |
| +65°C* | 700kPa | |
*NOT to exceed maximum temperature
Notes:
- Valves with low fixed cracking pressure (i.e 10cm water column), that have not been activated for some time may take several seconds to re-seal.
- It is the responsibility of the end user to verify that the product is suitable for the specific application.
- It is also recommended that the non-return valve is regularly checked and maintained.
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