Page 33 - Drinks Dispense & Pure Water - John Guest

Double Check Valve Service Valves

Double Check Valves ensure the prevention of Speedfit Service Valves are ideally suited to
contamination arising from back syphonage, back provide a temporary shut-off facility in a drinks
flow and cross connection. dispense situation.
A spring loaded internal check valve is sited The valve consists of a ball mechanism operated
either side of the test cock and an arrow by means of a screwdriver slot
identifies the direction of flow. The low headloss
design and fast installation time makes this unit Push in connections make for a fast installation
the ideal selection. The valve can be mounted time, especially in confined spaces.
in any position.
The valves can also be used for domestic hot
The valve can also be used for domestic hot and cold water supplies.
and cold water supplies.

Working Pressures and Temperatures Working Pressures and Temperatures

10 Bar at 20ºC 10 Bar at 20ºC
7 Bar at 65ºC intermittent hot water 7 Bar at 65ºC intermittent hot water

Technical information other than working Technical information other than working
pressures and temperatures shown on page 36. pressures and temperatures shown on page 36 .

DOUBLE CHECK VALVE SERVICE VALVE •

PART NO. TUBE PART NO. TUBE
OD OD
15DCV 15mm 15SV 15mm
For use with liquids only. For use with liquids only.

DOUBLE CHECK SERVICE VALVE • SERVICE VALVE •

PART NO. TUBE
OD PART NO. TUBE
OD
15DCSV 15mm
1/2ISV 1/2”
For use with liquids only.
For use with liquids only.

1/4 Turn Valves. These valves have been designed to
allow temporary servicing of downstream equipment and
must only be used in the fully open or fully closed position.
DO NOT USE THESE VALVES:
• In a partially open position to control flow.
• To provide a permanent termination.
• Without tubing assembled or plugged
(or threaded connections sealed).
• As a tap or “faucet”.
1/4 Turn Valves are indicated by this marker ‘•’

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