PPR System — Valves Saldate, non avvitate
PPR ball valves and stop valves in 1/2"–4", hot-melt welded to the same PPR pipe and fittings — one homogeneous system, Made in Italy since 1970. ISO 9001, ISO 14001, SKZ & DVGW certified.
We manufacture PPR valves for distributors, projects and OEM partners — export by the container, not single retail units.
I. The Valve Range La gamma
From the shut-off ball valve at the riser to the stop valve regulating a branch, the PPR valve line covers every control point on the water-supply system — all welding into the same pipe, and all available in your branding at container quantities.
Full-bore shut-off ball valves with lever handle and PPR hot-melt sockets, 1/2"–4". They weld directly into WARMHAUS PPR pipe as one fused joint — no threaded leak point on the line. PN rating: Coming soon.
Ball valves with brass-insert threaded ends for the points where a metal transition is required — meters, pumps and appliance connections. For a full metal valve line, see our brass ball valves.
Stop and regulating valves for isolating and throttling branch lines — the control point between the riser and the fixture, in the same PP-R body system as the pipe they serve.
Serviceable ball valves with a union end for disassembly and maintenance without cutting the line. Configurations: Coming soon.
Type list follows the confirmed WARMHAUS PPR catalogue. Per-type SKU counts, PN ratings and DN ports: Coming soon — confirmed against the supply table on request.
II. Material & Weld Un solo polimero
A PPR valve is only right when it becomes part of the pipe, not a weak point bolted onto it. On a PPR line, the connection decides whether it leaks.
A threaded valve introduces a joint that can weep; a PPR-socket valve fuses to the pipe in a single hot-melt weld. Our ball valves and stop valves are built on PP-R bodies from the same system as our PPR pipe and fittings, so when you weld a valve into the line the valve, the socket and the pipe become one continuous piece of the same polymer — no dissimilar-material joint to creep or leak over the life of the system.
We are an Italian PPR manufacturer, not a trader repackaging anonymous valves: every valve traces back to one factory in Bologna, one PP-R material system, one QC line and one certificate set. As general industry practice, PPR is socket-fusion welded at roughly ~260 °C and PPR pressure pipe is commonly rated across the PN10–PN25 range; the exact PP-R grade, PN rating and welding procedure for WARMHAUS valves are documented on our material data sheet, shared with distributors and project engineers on request.
| Item | General industry reference | WARMHAUS documentation |
|---|---|---|
| PP-R body grade | PP-R random copolymer, matched to the pipe system | Coming soon — material data sheet on request |
| Welding temperature | ~260 °C typical socket-fusion practice | Exact procedure — on request |
| Pressure class | PPR pressure systems commonly rated PN10–PN25 | WARMHAUS PN rating — Coming soon |
| Drinking-water approvals | — | Coming soon |
| Factory certification | — | ISO 9001 · ISO 14001 · SKZ · DVGW — copies on request |
III. Size Range Tutte le misure
A distributor should not have to split a valve order across three suppliers to cover a job. One Italian PPR valve line, welded straight into the pipe you already sell.
Our PPR ball valves and stop valves run the full 1/2", 3/4", 1", 1-1/4", 1-1/2", 2", 2-1/2", 3" and 4" range — the sizes that carry residential and commercial water-supply risers and branch lines.
| Size | PPR Ball Valve | PPR Stop Valve |
|---|---|---|
| 1/2" | ||
| 3/4" | ||
| 1" | ||
| 1-1/4" | ||
| 1-1/2" | ||
| 2" | ||
| 2-1/2" | ||
| 3" | ||
| 4" |
The table marks size availability only. Per-size SKU, socket DN·mm, thread standard and PN pressure class: Coming soon — confirmed against the full supply table on request.
IV. One System Un unico sistema
One weld, one polymer, one warranty — instead of matching a plastic pipe to a valve from another vendor and hoping the sockets line up.
These valves are engineered as one subcategory of the WARMHAUS PPR system. Ball valves and stop valves share the PP-R material, the socket dimensions and the weld window of our PPR pipe, fittings and inserts, so an installer welds the valve into the same line with the same hot-melt tool — and gets a single system warranty across the whole water network. Warranty terms: Coming soon.
And because the PPR line, the PEX underfloor-heating line and the brass line all come from the same Bologna factory, one distributor can source the complete water system from a single Italian supplier — under ISO 9001, ISO 14001, SKZ and DVGW certification.
FAQ Domande frequenti
Start Here Parliamone
Tell us your target market, the sizes you need, and whether you buy for distribution, a project, or OEM — we reply with the valve catalog, size & spec datasheet, certificate copies and a price list. Response time: Coming soon.