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Installation
Prior to installation, a check of the identification plate and body marking must be made to ensure that the
correct valve is being installed.
Valves are precision manufactured items and as such, should not be subjected to misuse such as careless
handling, allowing dirt to enter the valve through the end ports, lack of cleaning both valve and system before
operation and excessive force during lever operation. All special packaging material must be removed.
Immediately prior to valve installation, the pipework to which the valve is to be fastened should be checked
for cleanliness and freedom from debris.
Compression End Valves
Copper Pipe
These valves are fitted with compression ends to BS EN 1254-2 (formerly BS 864 Part 2), which are suitable
for installation onto copper pipework to BS EN 1057: R250 (half hard) and are provided with olives and
compression nuts. No pipe jointing compound should be used in the compression joints, a light oil may
Compression nuts must be hand tightened and then further tightened as per diagrams to the left.
Threaded End Valves
When installing a valve with threaded ends to steel pipe;
Valve Size
Turns
Valve Size
1
⁄
" - 1
1
⁄
"
1.5
2"
4
2
1
Hattersley Copper Alloy Ball Valves
be used on threads to ease tightening
however, no lubricant should be used on the
pipe or olive. When installing a valve with
compression ends to copper tube;
•
Always use a correctly sized spanner or
wrench on the flats provided.
•
Do not grip around the valve body joint.
•
Never drive torque through the main body
joint during assembly.
•
Always use the flats on the hexagon at the
end being fitted to the pipe.
•
Always use a correctly sized spanner or
wrench on the flats provided.
•
Do not grip around the valve body joint.
•
Never drive torque through the main body
joint during assembly.
•
Screw the pipe into valve and hand
tighten, then tighten by the number of
turns shown below (up to one
additional turn is permitted for alignment).
Turns
Valve Size
Turns
2
2
1
⁄
" - 4"
2.5
2
Press-Fit Endvalves
For Press-Fit, please refer to the Geberit website www.geberit.co.uk where installation instructions for Press-
Fit can be found.
Hose Union valves
Remove hose union nut and tailpipe taking care not to lose the tail pipe seal.
The valve ends are threaded parallel therefore the valve must be fully tightened up to the body shoulder.
Sealing compounds may be used and a sealing washer on the body shoulder would provide additional
security.
The wrench must only be located on the valve end into which the pipe is being threaded to avoid distortion of
the valve. After installation, the valve may be opened and closed fully to confirm satisfactory operation.
Operation
Ball valves have a quarter turn operation (clockwise to close) providing quick and positive isolation.
To close the valve, the handle or key is rotated clockwise to a positive stop.
To open the valve, the handle or key is rotated anti-clockwise to a positive stop.
Note: The operator should use suitable hand protection at extreme temperature conditions.
Note: Rapid closure of a quarter turn valve on liquid services may cause system water hammer.
Ball valves have PTFE body seats and should only be used in the full open or closed positions.
For operation purposes the ball valve is provided with either a lever handle, T-handle or Lockshield.
Where a Lockshield is fitted:
•
Remove plastic cover to access drive mechanism.
•
Valve may be open or closed using standard hex spanners / sockets.
•
Replace Lockshield cover after operation.
If valve is to be locked either open or closed:
•
Remove retaining nut from drive mechanism
•
Lift drive mechanism and turn through 90º ensuring slot in mechanism locates on body stop tang.
•
Refit retaining nut
•
Replace Lockshield cover
Maintenance
The Hattersley Ball valve is maintenance free and will have a long service life.
The valve should be at zero pressure and ambient temperature prior to any inspection.
Maintenance Engineers & Operators are reminded to use correct fitting tools and equipment. A full risk
assessment and methodology statement must be compiled prior to any maintenance.
The risk assessment must take into account the possibility of the limits of use being exceeded whereby a
potential hazard could result.
A maintenance programme should therefore include checks on the development of unforeseen conditions,
which could lead to failure.
For the supply of genuine Hattersley spares or technical assistance please contact us on 0845 604 1790.
Installation and Operating Instructions
Hattersley Copper Alloy Ball Valves
2
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