A press-fitting jaw profile identifies the pressing contour. TH, U, F and M are selection labels, not a universal compatibility guarantee. Before pressing, match the exact fitting series, pipe, diameter, attachment and drive unit to the manufacturer’s approved combination. Some fitting series allow several profiles; others specify a narrower choice.
- Use the fitting series’ instructions, not a profile letter alone.
- A tool-body swap depends on the listed jaw, ring or adaptor and its approved drive unit.
- Hitze states no MOQ for general ordering; confirm customization constraints and delivery dates in the quotation.
What TH, U, F and M tell you
The profile narrows the attachment search. It does not specify the complete pipe-and-fitting system or authorize every tool bearing that letter. REMS describes its contours as system-specific and directs users to the system provider’s installation instructions. Start with the offered fitting’s product reference and revision of its installation manual.
| System / series | Size (mm) | Profile evidence | Attachment evidence | Verdict |
|---|---|---|---|---|
| Wavin Tigris K5 | 16 | U, Up, TH, H, B listed | Confirm exact jaw and drive model | TH/U candidates; check the complete combination |
| Wavin Tigris K5 | 16 | F/M absent from this profile list | No F/M authorization established here | Do not substitute F/M from another series |
| AQUATECHNIK Universal | 32 | REMS lists F 32 | 570735 tongs; drive 576003 R22 listed | Use the listed F combination |
| VSH XPress Copper | 12 | REMS lists M 12 | 570100 tongs; drive 576003 R22 listed | Match this system, size and attachment |
Sources: the Wavin K5 page identifies 16 mm among its sizes and lists five profiles. The REMS F 32 listing and M 12 listing name the systems, attachment references and suitable drive units above. These are specific examples, not a Hitze compatibility declaration.
A useful exception to a single-profile rule is Wavin Tigris K5: its manufacturer lists U, Up, TH, H and B profiles. That approval belongs to the named series. It is not permission to substitute those profiles on another fitting. Confirm the diameter and attachment covered by the instructions before applying it.
Can you keep the existing press tool?
Possibly, once the exact combination is listed. Write down the drive-unit model, jaw or ring reference, adaptor reference where applicable, fitting series and diameter. A shared brand name or matching profile is insufficient. Two crews can own the same tool family and still have different attachments available for the proposed order.
Use the REMS PressFinder for REMS combinations, the Klauke SB jaw catalogue for its named tools and jaws, or the Novopress jaw matrix for its listed selections. Read the fitting maker’s instructions alongside the tool catalogue. Attachment availability does not itself establish approval for every fitting supplier.
For a worked lookup, start with AQUATECHNIK Universal in 32 mm. The REMS listing returns F 32 tongs, article 570735, and includes drive reference 576003 R22. Record all four fields together: system, size, attachment and drive. An M 32 attachment would not match that documented row.
For K5, an existing TH or U set may remain a candidate because those profiles are listed; its exact jaw and drive model still need confirmation. There is no universal diameter where every system changes from jaws to rings. Check the item reference and tool listing for the actual size. Likewise, do not rely on an expired compatibility list as current authorization: obtain the latest applicable document and retain its revision with the project records.
Checks before and after pressing
Before work, verify the approved pipe-and-fitting combination, cutting and preparation method, insertion requirement, attachment condition and tool service instructions. Record those details on the installation checklist. A matching contour does not mean another system’s preparation procedure can be reused unchanged.
REMS documents traceability impressions for some of its contours, including F and M. Where the selected system provides such marks, inspect them afterward as an additional check of the attachment used. A mark does not prove the joint’s integrity or replace the required installation inspection and pressure test.
Follow the applicable manufacturer and local test procedure for the actual installation. Have the responsible project professional specify the medium, pressure, duration and safety controls. This guide gives no universal water or compressed-gas test pressure. If the recorded attachment does not match the approved combination, stop and obtain the system manufacturer’s remediation instructions rather than accepting a passed test as retrospective approval.
A wholesale quote that preserves compatibility
MOQ: Hitze states no minimum order quantity for general ordering. Confirm carton quantities, mixed-size availability and customization-specific production constraints in the quotation. An order minimum and an economical carton quantity are different questions; write down both rather than inferring one from the other.
Specification and price structure: send a line-by-line schedule of fitting shape, diameter, pipe specification, approved pressing system and required seal. Ask the supplier to identify the alloy and applicable drinking-water evidence for each offered SKU. Do not infer “lead-free” from a DZR description, or infer approval of a press fitting from a certificate covering another product family. Keep material grade and seal specification on the same quotation row as the price. Use the Hitze press-fitting range to identify the product family being quoted, then confirm the offered SKU and applicable documents rather than transferring another manufacturer’s example.
Request the currency, price validity, packaging, shipment term and any tooling or customization charge. Price jaws, rings and adaptors as tool items. Compare quotations only after the offered parts and document coverage match. A cheaper substitute with an unconfirmed approval is a different purchasing decision.
Lead time: obtain separate delivery commitments for stock, production and customization items, with the event that starts each lead time. Ask whether document review and any required market-specific testing are included. No standard Hitze delivery period is documented here, so the quotation must supply it. For compliance, request the certificate holder, exact covered series and sizes, reference and validity; do not assume that a certificate exists for the proposed part.
Hitze is documented as a German brand supplied through ODM manufacturing. That establishes branding, not German manufacturing origin. Ask for the offered goods’ origin documents when origin is a purchasing requirement. The available brand evidence does not establish a complete press-fitting SKU compatibility matrix, so request written confirmation before ordering.
For distributors assembling an order, review the Hitze importer-distributor range, then prepare the SKU schedule and existing tool references for quotation. Specify the compatibility and documents the quotation must confirm.
Frequently asked questions
Can I use a TH jaw on a U-labelled fitting?
Only when the exact fitting series and size explicitly permit that combination. Some series allow several profiles; do not transfer that approval to another series.
Does an M marking guarantee compatibility?
No. Verify the fitting system, diameter, pressing attachment, adaptor if needed and drive unit against the applicable manufacturer list.
Must I buy a new press tool when switching suppliers?
Not necessarily. Retain the existing tool only if its model and the required attachment are approved for the offered fitting system and size.
Are Hitze press fittings made in Germany?
German branding does not establish manufacturing origin. Hitze is documented as a German brand supplied through ODM manufacturing; request origin evidence for the offered goods.
What is Hitze’s MOQ and delivery time?
Hitze states no MOQ for general ordering. Confirm carton and customization constraints in the quotation. Delivery time must be confirmed for the offered stock, production or customized items.
