Stainless Steel Pipes
Precision-engineered stainless steel welded pipes from PiPress, purpose-built to pair with press fittings (15-168.3 mm) and grooved fittings (DN50-DN400), delivering fast, safe, and reliable fluid transport across every application.
Built for Fast Connection Systems
PiPress stainless steel welded pipes are the backbone of our press fitting and grooved coupling systems -- engineered for precision tolerances, corrosion resistance, and long-term performance in demanding environments.
Press Fitting Pipes
Precision-rolled and welded stainless steel pipes in sizes 15-168.3 mm (½"-6"), with tight dimensional tolerances to ensure a perfect press connection every time. No flame, no threads -- just press and go.
Grooved Connection Pipes
Heavy-duty stainless steel pipes from DN50 to DN400 (2"-16") with roll-grooved or cut-grooved ends, designed to mate seamlessly with PiPress grooved couplings for large-diameter installations.
Custom & OEM Solutions
With 20+ years of OEM/ODM experience, we manufacture pipes to your exact specifications -- custom lengths, wall thicknesses, surface finishes, and end treatments to match your project requirements.
Product Specifications
Comprehensive dimensional and material data for PiPress stainless steel welded pipes.
Press Fitting Pipe Range
| Size (OD) | Wall Thickness | Standard Length | Grade |
|---|---|---|---|
| 15 mm (½") | 1.0 / 1.2 mm | 6 m | 304 / 316L |
| 22 mm (¾") | 1.2 mm | 6 m | 304 / 316L |
| 28 mm (1") | 1.2 / 1.5 mm | 6 m | 304 / 316L |
| 35 mm (1¼") | 1.5 mm | 6 m | 304 / 316L |
| 42 mm (1½") | 1.5 mm | 6 m | 304 / 316L |
| 54 mm (2") | 1.5 / 2.0 mm | 6 m | 304 / 316L |
| 76.1-168.3 mm | 2.0 / 2.6 / 3.0 mm | 6 m | 304 / 316L |
Grooved Connection Pipe Range
| DN / Inch | OD (mm) | Wall Thickness | Grade |
|---|---|---|---|
| DN50 / 2" | 60.3 | 2.0 / 2.6 mm | 304 / 316L |
| DN80 / 3" | 88.9 | 2.0 / 2.6 mm | 304 / 316L |
| DN100 / 4" | 101.6/108/114.3 | 2.0 / 3.0 mm | 304 / 316L |
| DN150 / 6" | 159/168.3 | 2.6 / 3.0 mm | 304 / 316L |
| DN200 / 8" | 219.1 | 3.0 / 4.0 mm | 304 / 316L |
| DN250-DN400 | 273-406.4 | 3.0-5.0 mm | 304 / 316L |
Material Properties
Key Product Features
-
Tight OD tolerances for reliable press-fit connection integrity
-
Fully annealed weld seam -- no residual stress, no cracking risk
-
Eddy current tested -- 100% weld seam inspection per batch
-
Inner surface Ra ≤ 0.8 µm -- hygienic for potable water use
-
Corrosion-resistant stainless steel for decades of service life
-
Compatible with all major press tool brands (Viega, Geberit, Rems, etc.)
-
Lightweight vs. carbon steel -- faster installation, lower labour cost
Standards & Certifications
PiPress stainless steel pipes comply with the most stringent international standards, ensuring market access and regulatory confidence worldwide.
EN 10312, EN 10088, EN 10217 -- stainless steel welded tubes for water and pressure service
DVGW GW541 & W534 -- certified for gas and drinking water installations
Regulation 4 -- Water Supply (Water Fittings) Regulations 1999, England, Wales & N. Ireland
ASTM A312, ASME B31.1, B31.3, B31.9 -- power piping, process piping, building services
AS3688, AS5200.053, AS1940, AS4041 -- certified for Australian plumbing and gas
PED 2014/68/EU & Directive (EU) 2020/2184 -- drinking water & pressure equipment
NSF certified for potable water contact -- North American drinking water compliance
ISO 9001, ISO 14001, ISO 45001 -- quality, environment & occupational health systems
Also Holds
Applications
PiPress stainless steel welded pipes serve a broad spectrum of residential, commercial, and industrial piping systems.
Potable & Domestic Water
Safe, hygienic drinking water supply for homes, apartments, and hotels.
Heating & Cooling Systems
Hot water heating, chilled water, and radiant floor systems in commercial buildings.
Compressed Air
Clean, dry compressed air distribution in factories and workshops without corrosion risk.
Gas Installations
DVGW-certified for natural gas and LPG distribution -- residential and commercial.
Fire Sprinkler Systems
Grooved pipe for fast-install fire suppression networks in large commercial facilities.
Industrial Process Fluids
Food & beverage, pharmaceutical, chemical, and other industrial fluid transport.
The PiPress Advantage
From factory to field, PiPress delivers the complete stainless steel piping solution with global reach and local support.
Original Factory
Direct manufacturer in China with full production control, no middlemen, competitive pricing.
Global Distribution
Branches in Mexico, Spain, Australia. Authorized distributors across Europe, USA, UK, Africa, Middle East & Asia.
Multi-Market Certified
CE, DVGW, WRAS, WaterMark, KIWA, NSF, ASME and more -- one supplier for all your markets.
OEM / ODM Ready
Over 20 years of OEM/ODM experience -- custom dimensions, branding, and packaging available.
Designed to Work Together
PiPress stainless steel welded pipes are engineered as part of a complete, integrated piping system. Every pipe dimension is matched to our press fittings and grooved couplings for guaranteed system integrity.
Press Fittings System
15-168.3 mm press fittings with EPDM, FKM, or NBR seals. No heat, no flame -- complete in seconds with standard press tools.
Grooved Coupling System
DN50-DN400 grooved couplings (rigid & flexible) for large-diameter pipelines. Fast bolt-together installation, easy maintenance access.
Complete Accessory Range
Matching elbows, tees, reducers, valves, and hangers -- full system supply from a single source for simplified procurement.
Ready to Specify PiPress Pipes?
Talk to our technical team about pipe specifications, certifications, OEM opportunities, or distributor partnerships. We respond within 24 hours.
Contact PiPress
Trusted Worldwide