304 Stainless Steel Type B Press‑Fit Fittings
2.Precision BSPP thread processing, high‑matching thread for tight leak‑free connection .
3.Reducing 90‑degree elbow structure, realizes different pipe diameter transition installation .
4.Fine polished surface treatment, smooth inner & outer wall, no sand holes, cracks or burrs .
5.Uniform wall thickness, stable mechanical property, reliable high‑pressure bearing capacity .
6.Smooth inner cavity, little fluid resistance, not easy to scale and block pipeline .
7.Mature casting & forming process, stable dimension, easy to install and maintain .
8.Widely fit for water supply, oil, gas and general industrial piping system
Description
304 Stainless Steel Type‑B Press‑Fit Fittings
Engineered for fast and secure pipeline connection, our ASTM SS304 Type‑B press‑fit fittings are premium pipe accessories for water supply, HVAC and general industrial piping systems. It features special V‑profile Type‑B groove structure, reliable press‑fit connection without welding, threading or glue. The integrated EPDM sealing ring provides excellent leak‑proof performance and simplifies on‑site assembly work. Manufactured from standard 304 stainless steel with smooth inner‑outer wall, the fitting delivers outstanding rust and corrosion resistance. It maintains stable sealing performance under long‑term working pressure. Fine surface finishing improves appearance quality and extends service life for indoor and outdoor piping projects. Regular stocked specifications cover mainstream pipe sizes for fast bulk shipment. Custom machining, OEM laser logo engraving and special‑size services are available upon request. These 304 stainless steel Type‑B press‑fit fittings are widely applied in plumbing systems, heating networks, drinking‑water pipelines, fire‑protection, irrigation and general industrial piping facilities.



Technical Specifications
| Parameter | Specification |
|---|---|
| Product Name | 304 Stainless Steel Type‑B Press‑Fit Fittings |
| Pressure Class | Medium‑High Pressure Grade |
| Raw Material | ASTM‑compliant SS304 stainless steel with compact uniform microstructure, excellent rustproof and anticorrosion performance |
| Surface Finish | Optional mirror polishing / matte treatment; smooth inner & outer wall without burrs |
| Connection Type | Type‑B V‑profile press‑fit connection; matched EPDM sealing ring for tight‑fitting, reliable leak‑proof sealing performance |
| Working Temperature | -20℃ ~ 120℃ |
| Applicable Medium | Drinking water, heating circulating water, neutral industrial fluids, oil and gas media |
| Certification Standard | Produced following international standards for stainless steel press‑fit pipe components |
| Application Scenario | Fast pipeline connection, plumbing systems, heating networks, drinking‑water pipelines, fire‑protection, irrigation, petrochemical facilities, industrial equipment, general piping projects |






Key Features
1.Superior Environmental Adaptability
Forged from ASTM‑certified 304 stainless steel, this Type‑B press‑fit fitting withstands humid coastal atmosphere, domestic water and weakly corrosive liquids. It keeps stable performance in outdoor piping and general industrial working environments for long‑term service life.
2.Reliable Press‑Fit Sealing Performance
Special Type‑B V‑groove structure cooperates with matched EPDM sealing ring to realize tight compression sealing. Stable sealing effect can be achieved by professional press‑fit tools, effectively preventing medium seepage under long‑term pressurized operation.
3.Compact Structure for Fast Pipeline Connection
Optimized fitting structure realizes quick pipe connection without welding, threading or glue. Standard dimension perfectly matches stainless steel pipes, simplifies on‑site piping installation operation and shortens construction period.
4.Thick‑wall Body Ensures Structural Stability
Thick‑wall fitting body guarantees pressure‑bearing capacity. Compact integrated forming structure resists deformation under pressure, delivers reliable mechanical performance for various pipe connection work.
5.Diversified Scenarios & Flexible Customization
Suitable for plumbing systems, heating networks, drinking‑water pipelines, fire‑protection, irrigation, petrochemical and general industrial piping projects. Conventional sizes are stocked for bulk orders; customized wall thickness, laser marking and non‑standard dimension processing are supported for OEM cooperation.
Dimensions and Specifications
Our 304 stainless steel Type‑B press‑fit fittings cover a full range of standard inch sizes, mainstream specifications are listed below:
- 1/2", 3/4", 1", 1‑1/4", 1‑1/2", 2"
- Custom dimensions, OEM laser marking and dedicated export packaging services are available
Each fitting is manufactured under strict dimensional tolerance management. Its precision‑formed Type‑B V‑groove structure perfectly matches standard stainless steel press‑fit pipes to sustain stable sealing performance, effectively preventing medium leakage during long‑term operation in diverse working scenarios.
Materials and Surface Treatments
1.Main Body Raw Material
Fabricated from ASTM‑compliant SS304 stainless steel, the Type‑B press‑fit fitting delivers outstanding rust and corrosion resistance against water, oil, gas and weak acidic media. It operates stably in food processing, chemical production, water treatment and marine piping systems for fast pipeline connection work.
2.Surface Finish
Standard pickling and passivation treatment forms a compact passive anticorrosive film to isolate rust, moisture and mild chemical erosion, supporting reliable use for indoor and outdoor industrial pipelines. Two surface options are available as requested: natural matte finish and mirror polishing finish.
3.Connection Processing
Adopt precision‑formed Type‑B V‑profile groove, perfectly cooperate with matched EPDM sealing ring. Professional press‑fit tool operation ensures stable leak‑proof performance for all kinds of pipe connection service.






Standards and Certifications
Our products are manufactured in strict accordance with global industrial quality norms:
- Fabricated following official process specifications for stainless steel press‑fit pipe fittings
- Production system certified to ISO 9001 quality management standards
Prior to packaging and shipment, every 304 stainless steel Type‑B press‑fit fitting undergoes comprehensive testing. Inspection items includes sealing reliability, V‑groove dimensional accuracy and anticorrosion performance.






Applications
1.Petrochemical & Industrial Pipeline
Our 304 stainless steel Type‑B press‑fit fittings work steadily in factory piping systems for water, gas, oil and low‑corrosion fluid transmission. They realize fast and reliable pipe connection, simplify later equipment maintenance and pipeline upgrading.
2.Shipbuilding & Marine Pipeline Systems
Commonly used for offshore domestic water supply, fuel delivery and heating pipe networks. Outstanding anti‑rust and salt‑spray resistant performance enables stable operation in damp, corrosive marine environments for permanent pipe joint connection.
3.Food & Water Treatment Piping
Ideal for drinking water projects, beverage production lines and water treatment piping systems. 304 stainless steel meets high hygiene requirements and will not cause secondary pollution to transported media for safe pipeline connection.
4.Heating & General Industrial Fluid Delivery
Suitable for central heating circulation pipelines, compressed air pipelines and various industrial fluid conveying lines. Press‑fit connection is quick for on‑site installation, greatly improving efficiency during daily system maintenance, testing and pipeline reconstruction work.
Installation Instructions
- Pipe Pre‑treatment: Cut the stainless steel pipe vertically, deburr the pipe end, clean up metal chips, dirt and impurities before assembly.
- Correct Assembly: Put the EPDM gasket in place, insert the pipe into the Type‑B press‑fit fitting until it reaches the stop position. Ensure the pipe is fully seated.
- Press‑fit Operation: Use dedicated professional press‑fit tools to complete crimping. Avoid improper operation which may cause deformation of V‑groove and sealing failure.
- Pressure Leak Test: Conduct pressure testing after installation to confirm reliable sealing of press‑fit joints.
- Periodic Inspection: Inspect press‑fit connections regularly to guarantee long‑term safe operation of the piping system.
Comply with industrial press‑fit piping specifications and local safety regulations during installation.
Packaging and Shipping
Every 304 stainless steel Type‑B press‑fit fitting is wrapped with anti‑collision protective film to prevent surface scratches during transit. Moisture‑proof packaging protects the pickled passivated surface. Bulk orders are palletized with export‑standard pallets for convenient handling and container loading.
Our factory is located in Taigu, Shanxi Province. We cooperate with seasoned global logistics networks covering main overseas ports, providing steady and cost‑effective bulk shipment services for industrial piping projects across the world.





Quality Control
1.Raw Material Spectral Composition & Mechanical Test
Every batch of ASTM SS304 stainless steel raw material undergoes full spectral analysis and mechanical property testing, to meet the official technical standards for stainless steel press‑fit pipe fittings.
2.Hydraulic Sealing Pressure Inspection
Finished 304 stainless steel Type‑B press‑fit fittings are randomly sampled for hydraulic sealing tests under rated working pressure, to confirm zero‑leakage performance of press‑fit joint surfaces.
3.V‑Groove Dimension Precision Calibration
Special measuring tools are used to check V‑groove size, depth and tolerance. This guarantees tight matching with standard stainless steel pipes and stable sealing after crimping assembly.
4.Full Surface Visual Defect Screening
After pickling and passivation, all products go through 100% manual visual inspection. Workers remove burrs, stains and surface imperfections on V‑groove and outer shells, so the fittings can maintain reliable corrosion resistance during long‑term use.
OEM and Customization Services
We maintain stable annual production capacity and accept bulk OEM & ODM custom orders. Our professional engineering team provides one‑stop customized solutions for various industrial pipeline projects, including customized wall thickness, non‑standard dimensions, laser‑engraved brand logos and dedicated export packaging. We own a complete set of molds covering sizes from 1/2 inch to 4 inches, which can effectively shorten the lead time for sample trial production and mass delivery.






FAQ
Q:Can this 304 stainless steel Type‑B press‑fit fitting be buried underground?
A: Outer anti‑corrosion treatment must be carried out before buried installation. Direct burial without protective measures will greatly shorten the service life of the fitting. We can provide customized anti‑corrosion schemes upon your demand.
Q: What is the standard installation method for this stainless steel Type‑B press‑fit fitting?
A: Trim and deburr the pipe end, insert pipe fully into the fitting, then complete crimping with dedicated press‑fit tools. Avoid improper crimping force to prevent V‑groove deformation, achieving stable long‑term leak‑free connection.
Q: Can it withstand pipeline thermal expansion?
A: The fitting belongs to rigid connecting parts. For long‑distance pipelines with obvious temperature changes, it is suggested to install expansion joints to offset stress caused by thermal deformation.
Q:Is it compatible with different stainless steel pipes?
A:Fits standard stainless steel press‑fit pipes. Please confirm pipe outer diameter and wall thickness specification before ordering.
Q:Why pick 304 stainless steel Type‑B press‑fit fitting rather than carbon steel ones?
A:ASTM 304 stainless steel features outstanding rust and corrosion resistance for water, oil, gas and weak acid media. Press‑fit connection brings fast‑on‑site installation, suitable for piping systems in food processing, water treatment, marine engineering and corrosive medium scenarios.
Contact Us
Searching for reliable 304 stainless steel Type‑B press‑fit fittings to support your industrial piping projects? Our experienced technical team provides full‑process product selection guidance and comprehensive technical support.Email:q1236800000@gmail.com We are able to supply complete official technical datasheets, cost‑effective bulk wholesale quotations and stable delivery schedules. Our high‑grade 304 stainless steel press‑fit fittings are widely delivered to global projects covering food processing, water treatment, petrochemical industry, shipbuilding and heating pipeline systems.
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