Stainless steel piping systems
Von Laffert piping systems stand for maximum precision, purity and durability, developed for applications where quality cannot be compromised.
Tubes from the melt to the inspection of the finished end product, traceable from a single source, guarantee you consistently excellent results and safety!
Whether in test gas, calibration gas, calibration gas, laboratory gas or process gas and high-purity gas systems in science and research institutes as well as microchip production, the chemical industry, process engineering, apparatus engineering, heat exchanger production, food production or in pharmaceutical plant engineering:
von Laffert Rohrsysteme fulfil your requirements for purity, pressure resistance and corrosion resistance.
For increased surface and purity requirements for gaseous and liquid media, we offer you pipe systems that are designed for maximum process reliability and particle purity.
Materials and standards for our pipe systems
Von Laffert pipe systems are manufactured in accordance with the applicable standards DIN EN 10216-5 or DIN EN 10305-1 or ASTM A269/213, tolerances in accordance with DIN EN 10305-1 or DIN EN ISO 1127: D4/T3, ASTM A269 or ASTM A270. This enables us to guarantee dimensional accuracy, repeatability and compatibility with common connection systems. On request, we can also supply pipe systems in other materials in addition to 1.4435 1.4404-AISI 316L - each with test certificates in accordance with EN 10204 3.1.
Pipe systems made of material DIN 1.4435-AISI 316L as well as pipes made of V2A DIN 1.4301, 1.4306 1.4541 and V4A DIN 1.4404, 1.4571 Special materials e.g. Nickel-Alloy, Alloy-400, Alloy-600, Alloy-800, Alloy C-276, Alloy C-22, UNS904L DIN 1.4539, titanium DIN 3.7035, heat-resistant alloys such as DIN 1.4841, 1.4845, 1.4876, duplex and superduplex DIN 1.4410, 1.4462, 1.4501, 254-SMO, 6-MO, ring tubes, capillary tubes, thin-walled tubes and copper tubes.
Our production includes both welded and seamless pipe systems in various dimensions and wall thicknesses.
Thanks to state-of-the-art production technologies and seamless quality controls, we ensure that every system meets the highest standards of surface quality and tolerance.
This makes our pipe systems suitable for bolted system connections and orbital welded connections in gaseous and liquid cleanroom processes and vacuum technology.
Cleaning, surfaces and special versions of the pipe systems
We supply chemically defined oil and grease-free cleaned, pickled or electropolished pipe systems for your applications, which are used particularly in hygiene or media-critical areas.
In close cooperation with our customers, we supply optimised pipe solutions, precisely tailored to your system and process conditions.
Detailed material and dimensional information can be found on our page Technical data, while under Qualities to find out more about the available surface and purity levels of our pipe systems.
Quality and precision for your application
Available metric tubes and weights
Stainless steel tubes seamless metric
| Metric | Kg/m | MSR | A | B | C |
|---|---|---|---|---|---|
| 3,00 x 0,50 | 0,031 | x | x | ||
| 3,00 x 0,70 | 0,040 | x | x | ||
| 3,00 x 1,00 | 0,062 | x | |||
| 4,00 x 0,50 | 0,044 | x | x | ||
| 4,00 x 1,00 | 0,075 | x | x | ||
| 5,00 x 0,50 | 0,056 | x | x | ||
| 6,00 x 1,00 | 0,125 | x | x | x | x |
| 6,00 x 1,50 | 0,169 | x | x | ||
| 8,00 x 1,00 | 0,175 | x | x | x | x |
| 8,00 x 1,50 | 0,244 | x | x | ||
| 8,00 x 2,00 | 0,300 | x | x | x | x |
| 10,00 x 1,00 | 0,225 | x | x | x | x |
| 10,00 x 1,50 | 0,319 | x | x | ||
| 10,00 x 2,00 | 0,401 | x | x | ||
| 12,00 x 1,00 | 0,275 | x | x | x | x |
| 12,00 x 1,50 | 0,394 | x | x | ||
| 12,00 x 2,00 | 0,501 | x | x | ||
| 14,00 x 1,00 | 0,326 | x | x | x | |
| 14,00 x 2,00 | 0,601 | x | x | ||
| 15,00 x 1,00 | 0,351 | x | x | ||
| 15,00 x 1,50 | 0,507 | x | x | ||
| 15,00 x 2,00 | 0,651 | x | x | ||
| 16,00 x 1,50 | 0,545 | x | x | ||
| 16,00 x 2,00 | 0,701 | x | x | ||
| 18,00 x 1,00 | 0,426 | x | x | ||
| 18,00 x 1,50 | 0,620 | x | x | x | x |
| 18,00 x 2,00 | 0,801 | x | x | ||
| 18,00 x 2,50 | 0,971 | x | x | ||
| 20,00 x 1,50 | 0,695 | x | x | ||
| 20,00 x 2,00 | 0,901 | x | x | ||
| 20,00 x 2,50 | 1,090 | x | x | ||
| 22,00 x 1,50 | 0,770 | x | x | ||
| 22,00 x 2,00 | 1,002 | x | x | ||
| 23,00 x 1,50 | 0,808 | x | x | x | x |
| 25,00 x 2,00 | 1,152 | x | x | ||
| 25,00 x 2,50 | 1,410 | x | x | ||
| 28,00 x 1,50 | 0,995 | x | x | x | x |
| 28,00 x 2,00 | 1,302 | x | x | ||
| 28,00 x 2,50 | 1,596 | x | x | ||
| 30,00 x 2,00 | 1,402 | x | x | ||
| 35,00 x 1,50 | 1,258 | x | x | x | x |
| 38,00 x 2,00 | 1,803 | x | x | ||
| 38,00 x 3,00 | 2,629 | x | x | ||
| Subject to technical changes | |||||
Available tubes
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Stainless steel tubes seamless imperial/ Tube Imperial
Stainless steel tubes seamless imperial/ Tube Imperial
| Tube Imperial | Weight - kg/m | MSR | A | B | C |
| 1,59 x 0,29 | 0,0130 | x | |||
| 3,18 x 0,56 | 0,0364. | x | x | x | |
| 3,18 x 0,71 | 0,0440 | x | x | ||
| 4,76 x 0,89 | 0,0879. | x | x | ||
| 6,35 x 0,91 | 0,1243. | x | x | x | x |
| 6,35 x 1,24 | 0,1590. | x | x | ||
| 6,35 x 1,65 | 0,1944 | x | |||
| 7,94 x 0,89 | 0,1573 | x | x | ||
| 9,53 x 0,91 | 0,1968. | x | x | x | x |
| 9,53 x 1,24 | 0,2540. | x | x | ||
| 9,53 x 1,65 | 0,3220. | x | x | ||
| 12,70 x 1,22 | 0,3500. | x | x | x | x |
| 12,70 x 1,65 | 0,4550. | x | x | x | x |
| 12,70 x 2,11 | 0,5602. | x | x | ||
| 19,05 x 1,22 | 0,5439. | x | x | x | x |
| 19,05 x 1,65 | 0,7190. | x | x | x | x |
| 19,05 x 2,11 | 0,8960 | x | x | ||
| 19,05 x 2,41 | 1,0050 | x | x | ||
| 25,40 x 1,65 | 0,9810. | x | x | x | x |
| 25,40 x 2,11 | 1,2319. | x | x | ||
| 25,40 x 3,20 | 1,780. | x | x | ||
| 31,80 x 1,65 | 1,2440. | x | x | ||
| 38,10 x 1,65 | 1,5060. | x | x | x | x |
| 50,80 x 1,65 | 2,0310. | x | x | x | x |
| 63,50 x 1,65 | 2,5550. | x | x | x | |
| 76,20 x 1,65 | 3,0800. | x | x | x | x |
| 101,60 x 2,11 | 5,2560. | x | x | x | x |
| Subject to technical changes | |||||
Seamless stainless steel tubes
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Welded stainless steel pipes for clamp and ATW orbital weld fittings
Stainless steel pipes made of material 1.4435 or 1.4404 - AISI 316L in accordance with DIN 11866 H2/ H3/ H3o/ H4/ H4o/ or electropolished, or in accordance with EN 10217 Internal roughness Ra <= 0,8my/ <= 0,6 my/ <= 0,4 my oder <= 0,25 my
Stainless steel tubes welded for clamp and ATW orbital weld fittings ra 0.8my/0.6my/0.4my
| Nominal diameter | Metric | ISO | Tube imperial |
| DN 8 | 10,00 x 1,00 | 13,50 x 1,60 | 9,53 x 0,91 |
| DN 10 | 12,00 x 1,00 | 17,20 x 1,60 | 12,70 x 1,65 |
| 13,00 x 1,50 | |||
| DN 15 | 19,00 x 1,50 | 21,30 x 1,60 | 19,05 x 1,65 |
| DN 20 | 23,00 x 1,50 | 26,90 x 1,60 | 25,40 x 1,65 |
| DN 25 | 29,00 x 1,50 | 33,70 x 2,00 | |
| DN 32 | 35,00 x 1,50 | 42,40 x 2,00 | 38,10 x 1,65 |
| DN 40 | 41,00 x 1,50 | 48,30 x 2,00 | 50,80 x 1,65 |
| DN 50 | 53,00 x 1,50 | 60,30 x 2,00 | |
| DN 65 | 70,00 x 2,00 | 76,10 x 2,00 | 76,20 x 1,65 |
| DN 80 | 85,00 x 2,00 | 88,90 x 2,30 | |
| DN 100 | 104,00 x 2,00 | 114,30 x 2,30 | 101,60 x 2,11 |
| Subject to technical changes | |||
Welded stainless steel tubes
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Capillary and thin-walled pipes welded, redrawn several times:
Capillary and thin-walled tubes in 1.4301, 1.4571 and other materials. For further enquiries please contact there.
Capillary and thin-walled pipes 1.4301
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Capillary and thin-walled tubes 1.4571
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CU copper cold tube chemically cleaned, with extended test scope
For calibration, laboratory, medical, test and clean gases
Processing: Leak-tight system screw connections, soldered connections
1st CU cooling tube SFCU in accordance with EN 13348, or DIN 1786/1787, EN 12 735-1 (formerly DIN 8905), or EN 793 (formerly VDE 0750 Part 211).
Hardness: R220, or R290, or F 36/ F 37,
2. cu medical and laboratory media copper tube SFCU
EN 13348, or DIN 1786/ 1787, EN 12 735-1 (formerly DIN 8905), or EN 793 (formerly VDE 0750 part 211), or tol.: EN 1057, hardness: R220 or R290, F 36/ F 37, in 5 m rods, or in coils on request, chemically cleaned inside, ends capped, residual grease/carbon content <= 0.2 mg/ dm². Extended scope of testing in accordance with EN 13 348 to meet the requirements of medical technology, laboratory equipment, food and pharmaceutical industries. Certificate EN ISO 10204 3.1 available.
In 5 m rods, or in rings on request, e.g. 1/8“- 3.18 x 0.59 mm
Available dimensions:
CU copper cold tube chemically cleaned, with extended test scope
| AD × wall thickness | AD × wall thickness |
|---|---|
| 6.00 × 1.00 mm | 8.00 × 1.00 mm |
| 10.00 × 1.00 mm | 12.00 × 1.00 mm |
| 15.00 × 1.00 mm | 18.00 × 1.00 mm |
| 22.00 × 1.00 mm | 28.00 × 1.50 mm |
| 35.00 × 1.50 mm | 42.00 × 1.50 mm |
| 54.00 × 2.00 mm | 64.00 × 2.00 mm |
| 89.00 × 2.00 mm |
Cu copper cold tube
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Ring tubes
Material DIN 1.4435, or 1.4404 - AISI316L, on request also with defined purity and roughness, chemically cleaned free of oil and grease.
Ring tubes
| AD | x | Wall “ | = | AD | x | Wall mm |
| 1/16” | x | 0,020” | = | 1,58 | x | 0,50 |
| 1/8“ | x | 0,020” | = | 3,18 | x | 0,50 |
| 1/8“ | x | 0,022“ | = | 3,18 | x | 0,56 |
| 1/8“ | x | 0,028“ | = | 3,18 | x | 0,71 |
| 3/16“ | x | 0,035“ | = | 4,76 | x | 0,89 |
| ¼“ | x | 0,035“ | = | 6,35 | x | 0,89 |
| ¼“ | x | 0,048“ | = | 6,35 | x | 1,24 |
| ¼“ | x | 0,065“ | = | 6,35 | x | 1,65 |
| 3/8“ | x | 0,035“ | = | 9,53 | x | 0,89 |
| 3/8“ | x | 0,048“ | = | 9,53 | x | 1,24 |
| 3/8“ | x | 0,065“ | = | 9,53 | x | 1,65 |
| ½“ | x | 0,035“ | = | 12,70 | x | 0,89 |
| ½“ | x | 0,048“ | = | 12,70 | x | 1,24 |
| ½“ | x | 0,065“ | = | 12,70 | x | 1,65 |
Ring tubes - Metric
| AD | x | Wall mm |
| 3,00 | x | 0,50 |
| 3,00 | x | 1,00 |
| 4,00 | x | 0,50 |
| 4,00 | x | 1,00 |
| 5,00 | x | 0,50 |
| 5,00 | x | 1,00 |
| 6,00 | x | 0,50 |
| 6,00 | x | 1,00 |
| 6,00 | x | 1,50 |
| 8,00 | x | 1,00 |
| 10,00 | x | 1,00 |
| 10,00 | x | 1,50 |
| 12,00 | x | 1,00 |
| 12,00 | x | 1,50 |
| 12,00 | x | 2,00 |
| 14,00 | x | 1,00 |
| 15,00 | x | 1,00 |
| 16,00 | x | 1,50 |
Other materials or dimensions on request
Inch ring tubes
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metric ring tube
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