Page 109 - PRESS-FIT SYSTEMS FOR DIVERSE APPLICATIONS

3.0 TECHNICAL DATA
MATERIALS SPECIFICATION

AND MANUFACTURING STANDARDS

MATERIALS SPECIFICATION
Component Body O Ring O Ring bead

XPRESS COPPER Copper/Copper Alloy or Gunmetal Alloy EPDM* Copper
XPRESS STAINLESS Stainless Steel (316L) EPDM* -
XPRESS CARBON Carbon Steel ST34-2 (Nickel Plated) EPDM* -

XPRESS COPPER GAS Copper/Copper Alloy or Gunmetal Alloy Yellow HNBR† -
XPRESS STAINLESS GAS Stainless Steel (316L) Yellow HNBR† -
XPRESS SOLAR Copper/Copper Alloy or Gunmetal Alloy Green (FPM) (Viton™) Copper

NB. O rings are supplied lubricated for easy tube insertion. *Ethylene Propylene Diene Monomer. †Hydrogenated Aerylonitrile Butadiene Rubber.

MANUFACTURING STANDARDS
XPRESS XPRESS
XPRESS XPRESS XPRESS XPRESS
Component Standard Summary COPPER STAINLESS
COPPER STAINLESS CARBON SOLAR
GAS GAS
Pipe-threads, where pressure-tight
Male end ISO 7/EN10226-1 (formerly joints are made on the threads
thread BS 21/ISO 7) P P P P P P
(metric dimensions)
BS EN ISO 228:2003 Pipe-threads, where pressure-tight
Female end (formerly BS 2779/ISO joints are not made on the threads - - -
thread P P P
R228/1) (metric dimensions)
Pipe-threads, where pressure-tight
Female end ISO 7/1 EN 10226-1 joints are not made on the threads - - -
thread P P P
(metric dimensions)
CONNECTORS TEE SPECIFICATION
Male Connectors
XPress male connectors have threads to 3 2
BS 21/ISO 7 EN 10226-1. Inert jointing compounds
or PTFE tape should be applied to taper threads.
PTFE tape should not be used in conjuction
with stainless steel threads due to the water soluble chloride ions it 1 2 1 3
contains.
XPress flat face unions are supplied with Fibre washer seals (XPress UK specification European specification
copper).
First quote the ends on the Quote the larger end first,
EPDM washer seals (XPress carbon and stainless). run (larger end first) and then the branch, followed
Female Connectors then the branches by the remaining end.
XPress female threaded connectors have internal eg: 22 x 22 x 15 eg: 22 x 15 x 22
parallel threads to ISO 7/EN 10226-1.

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