We are an authorized distributor of Danfoss tube fittings. WALFORMplus, WALRing and WALPro systems in steel and 1.4571 stainless, to the DIN 2353 / ISO 8434-1 24° cone standard.
With WALFORMplus the tube end is cold-formed in a machine; there is no cutting ring. The formed tube, a captive soft seal, and a standard 24° cone body and nut make the joint. Sealing is double: a soft seal in front, metal-to-metal contact behind.
The joint assembles against a block stop; you feel a clear torque rise when tightening, which reduces the risk of under- or over-tightening. Because the cone is not widened, the joint can be re-assembled any number of times.
Fewer parts: tube, body, nut and seal
Positive tube retention: 236 kN pull-out on a 38×6 tube (150 kN for a correctly assembled cutting ring)
Roughly twice the bending strength required by the standard
Dry forming: a clean, oil-free process
Approved for carbon steel and stainless steel tubes
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Why stainless
On deck, offshore, and in food and chemical lines, zinc-plated steel fittings are not enough. 1.4571 stainless fittings with 316-grade tube keep the system leak-free for years against salt water and wash-down chemicals. In our on-board piping work we join stainless tube with WALFORMplus.
The WALFORMplus system is approved by classification societies including ABS, BV, DNV, LR and RINA. Current approval certificates are available on request.
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Eaton is now Danfoss
Eaton’s hydraulics business joined Danfoss Power Solutions in 2021. The tube fittings you knew for years as Eaton Walterscheid, and Eaton Vickers pumps and valves, are now made under the Danfoss brand. As a Danfoss Power Solutions authorized distributor, Ser Hidrolik continues to supply the same product families.
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Forming service and SER FORM
We form tube in our own workshop and on site, and deliver tubes prepared to isometrics with formed ends, ready to install. We also manufacture our own SER FORM hydraulic tube preparation machines.
02From the workshop and the field
03Frequently asked
Questions, answers.
How does WALFORMplus differ from a cutting-ring fitting?
A cutting ring holds the tube by biting into it, so retention depends on assembly quality. With WALFORMplus the tube end is formed and the joint becomes a positive, form-locked connection. A soft seal and metal-to-metal contact seal together, which is safer under vibration and pressure shock.
Can you still supply Eaton Walterscheid products?
Yes. Eaton’s hydraulics business joined Danfoss in 2021; Walterscheid tube fittings continue to be produced under the Danfoss brand and we supply them as an authorized distributor.
Which tube materials does it work with?
Seamless hydraulic tubes in St 37.4 and St 52.4 (E235 / E355) and stainless tubes in 1.4571 (316Ti) and 316L. Tube outside diameters from 6 mm to 42 mm can be formed.
How do I get a quotation for stainless hydraulic fittings?
Send us your parts list by e-mail and we will quote with stock status and lead time.
A cylinder size, a power unit capacity or a piping job on board: tell us what you need and our engineering team will come back with a technical solution and a quote.
