Stuart Turner Monsoon S1.5 bar Twin - Manual (Page 10)

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3.12 Hose to pipework:
1. The hoses are fitted with plastic push-in connectors, which must only be
connected with the following:
a) 22 mm diameter copper pipe to BS EN 1057 - R250 (half hard) - Table 3.
b) 22 mm plastic pipe to BS 7291 part 1 and part 2 (Table 1), or part 3
(Table 1) plus internal support sleeve*.
* The internal bore of the plastic pipe must be supported against collapse
with the pipe manufacturers recommended support sleeve (pipe insert).
c) Appropriate plumbing fittings that are compatible and will provide a water
tight connection.
Ensure the pipe is free from all score marks and deformities in the area of the
insertion depth (Fig. 8) and cut the pipe square removing all burrs and sharp
edges to prevent damage to the sealing ‘O’-ring.
2. Prior to inserting pipe into fitting mark the insertion depth on the wall of the
pipe with a soft pencil at a distance of 33 mm from the end to be inserted.
3. Check in the mouth of the fitting that ‘O’-ring, nylon washer and collet are in
position.
4. Push pipe firmly into fitting, until pencil mark is level with the top of the collet
and the pipe stop resistance is felt. Pull on pipe to check it is secure and
correctly fitted.
Fig. 8
Pencil
mark
Insert depth
33 mm
22 mm Pipe
Fig. 9
Body
Collet
Washer
‘O’-Ring
Pipe Stop
Hose
Isolating Valve