Inserts and transition fittings for CPVC and PPR.
OD-critical. System-matched.
Threaded inserts, male and female adapters, couplings, elbows, and tees — produced to CPVC and PPR dimensional standards. Free-cutting brass is the system metal. Stainless inserts are quoted where the pipe OEM specifies them.
Tell us the pipe system and size range. We produce to that standard — not to a generic brass-fitting tolerance.
The metal the plastic system is designed to accept.
The insert OD must match the plastic socket bore to within ±0.05mm. Too small and the insert spins; too large and the socket splits. Brass is chemically compatible with the CPVC and PPR resins used by major system manufacturers. Stainless is available when the buyer’s system approval requires it.
What a buyer typically specifies.
For pipe-system OEMs and distributors who cannot accept a loose insert.
CPVC / PPR system manufacturers
Inserts and transition fittings as part of a complete pipe system.
Plumbing wholesale distributors
Standard inserts for resale with pipe and fittings.
Contractors & installers
Transition fittings from plastic systems onto existing metal pipework.
Export buyers
System-matched inserts for Europe, the Americas, the Gulf, and Asia.
Other ranges from the same plant.
Sanitary Fittings
Angle valves, cocks, and bathroom fittings in DZR brass and stainless steel.
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Screws & Fasteners
Screws, bolts, nuts, and washers in brass, stainless, steel, aluminium, and bronze.
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Turned Components
CNC turned parts in brass, stainless steel, aluminium, mild steel, and copper.
ViewNeed inserts to a named pipe standard?
Send the system name, size range, and OD/thread spec. We confirm the fit before we cut metal.