Tel: +86-577-86801027 / E-mail: cooper@lianhevf.com
Stainless Steel Fitting
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Size Range: 1/2"–4" (DN15–DN100)
Wall Thickness: 0.8–2.0 mm
Applicable Standards: GB, EN, DIN, and ASME
Available Materials:
0Cr18Ni9, SS304, S30408, SUS304, and 1.4301
0Cr17Ni12Mo2, SS316, and SUS316
SS304L, S30403, and 1.4306
SS316L, S31603, and 1.4404
Socket Connection: Stainless Steel Ring Crimping Connection
Nominal Pressure: PN16
Hydrostatic Test Pressure: 2.5 MPa
Airtightness Test Pressure: 1.05 MPa
Manufacturing Process: Mechanically formed from stainless steel pipes
Surface Treatment Options: Vibration Polishing, Magnetic Polishing, and Pickling
Product Marking: LOGO–OD–W.T.–Material. Customer logos and customized markings can be applied according to specific order requirements.
Standard Packaging: Plastic Bags, Export Cartons, and Wooden Cases
Certificates: GB/T 19001-2016, ISO 9001:2015, CE, and Sanitary License
Brand: LIANHE
Applicable Media: Drinking water, cold water, hot water, wastewater, industrial water, oil, gas, and other compatible media.
LIANHE stainless steel ring crimping fittings are designed for fast, reliable, and durable pipeline connections. They are suitable for engineering projects, ships, commercial buildings, residential buildings, hospitals, hotels, environmental protection facilities, heating installations, and air-conditioning systems.
The fittings can be used in a wide range of pipeline systems, including:
Domestic and commercial water supply systems
Cold-water and hot-water piping systems
Direct drinking-water pipelines
Gas distribution systems
Wastewater transportation systems
Environmental protection pipelines
Steam piping systems
Heating systems
Air-conditioning pipelines
Industrial water systems
Other compatible fluid transportation systems
Product suitability should be confirmed according to the operating pressure, working temperature, transported medium, sealing-ring material, installation method, and applicable project standard.
High mechanical strength
Excellent corrosion resistance
Long operating service life
Low fluid-flow resistance
Good vibration and seismic performance
Reliable mechanical connection
Environmentally friendly installation
Fast and convenient assembly
Suitable for concealed and embedded installation
Low overall installation and maintenance cost
Good resistance to wear
Hygienic construction for suitable water systems
Reliable sealing performance with reduced leakage risk
The ring crimping connection method enables installers to complete pipeline connections efficiently without extensive on-site welding. This helps reduce installation time, simplify construction procedures, and minimize the risk associated with open-flame operations.
When installed with the correct crimping tools and procedures, the fitting provides dependable mechanical strength and sealing performance. Appropriate pipe preparation, insertion depth, gasket selection, tool calibration, and final inspection are essential for a reliable connection.
Available inspection and performance tests include:
Hydrostatic Pressure Test
Airtightness Test
Working Pressure Test
Negative-Pressure Test
Pull-Out Test
Cold- and Hot-Water Temperature-Cycling Test
Hydrostatic Bending and Torsion Test
Hydrostatic Vibration Test
Hydrostatic Impact Test
The applicable tests and sampling ratio depend on the selected product, governing standard, project requirements, and confirmed inspection plan.
Products are inspected before shipment. Standard delivery inspection covers:
Material grade
Surface condition
Product dimensions
Socket dimensions
Wall thickness
Product markings
Hydrostatic performance
Airtightness performance
Packaging and quantities
Inspection reports and quality documents can be supplied according to the product type and agreed order requirements, including:
EN 10204 3.1 Material Test Certificate
Raw-Material Inspection Certificate
Radiographic Testing Report, when applicable
Hydraulic Sealing Test Report
Dimensional Inspection Report
Connection Inspection Report
Third-Party Inspection Report
Other project-specific quality documents
The required documents, testing scope, inspection ratio, and third-party inspection arrangements should be confirmed before production.
Applicable Temperature Range of Matching Gaskets: -20°C to +110°C
The actual operating temperature depends on the gasket material, transported medium, system pressure, exposure time, and other service conditions.
LIANHE performs in-process inspection and final inspection throughout production. Raw materials, dimensions, sockets, surfaces, sealing performance, markings, and packaging are checked before the finished products are approved for delivery.
Our main quality-control procedures include:
Inspecting the outside diameter, wall thickness, material grade, and surface condition of incoming raw materials.
Checking the length, cutting position, and end condition of raw materials after cutting.
Inspecting the socket dimensions, outside diameter, and wall thickness after mechanical forming and machining.
Checking weld dimensions, weld appearance, and surface quality after welding and forming.
Inspecting the product surface, dimensions, and socket structure after heat treatment.
Verifying surface quality after vibration polishing, magnetic polishing, pickling, or other surface treatment.
Performing hydraulic-pressure and airtightness tests according to the applicable inspection requirements.
Checking product markings, order quantities, packaging materials, labels, and shipping marks before shipment.
Our manufacturing facility is equipped with five automatic pipe-welding production lines, two laser-cutting machines, five vibration-polishing machines, two magnetic-polishing machines, five airtightness and hydraulic-testing units, three forming machines, three grooving machines, two drilling machines, ten CNC lathes, and six end-processing machines.
Additional equipment includes two vertical hydroforming machines, two frame-type hydroforming machines, ten pipe-bending machines, eight automatic argon-arc welding machines, four hydraulic drawing machines, four high-speed hydraulic punching machines, two laser-marking machines, two packaging units, and other related production and inspection equipment.
These production capabilities support pipe preparation, forming, machining, welding, heat treatment, surface finishing, testing, product marking, and export packaging.
HS Code: 7307230000
Our standard payment term is a 30% T/T deposit paid in advance, with the remaining 70% T/T balance paid before delivery. Specific payment conditions can be discussed according to the order value and cooperation requirements.
Available payment methods include T/T, Western Union, PayPal, and other mutually agreed methods.
Available Trade Terms: EXW, FOB, CFR, CIF, DDP, and DDU
Products can be transported by sea freight, air freight, land transportation, or international express service. A suitable shipping method can be recommended according to the order volume, destination, required delivery date, and transportation budget.
MOQ: Normally 5–10 pieces, depending on the product model, size, and current inventory.
We maintain inventory for many regular products and commonly requested sizes. Selected products may have up to 5,000 pieces available in stock, supporting short delivery times and flexible purchasing requirements.
Because stock levels change continuously, the available quantity for each product and size should be reconfirmed before placing an order.
Free Samples: Samples can be provided free of charge for product evaluation and project testing. The international express delivery cost is normally paid by the recipient.
Quotation Time: A quotation can normally be provided within three working hours after receiving the complete product specifications, material, size, quantity, and delivery destination.
Quotation Validity: Normally 3–7 days, subject to stainless steel raw-material prices, exchange-rate fluctuations, and current market conditions.
Regular products and standard sizes available from stock can normally be delivered within 3–7 days.
Orders requiring new production normally take approximately 25 days. The actual delivery schedule depends on the product specifications, material availability, order quantity, inspection requirements, customized packaging, and factory production plan.
Our standard product quality warranty period is one year. If a manufacturing-related quality problem is confirmed during the warranty period, our team will investigate the cause and provide an appropriate technical or after-sales solution.
Customers should provide the product model, order number, installation conditions, operating pressure, working temperature, transported medium, and relevant photos or videos to assist with technical analysis.
Extensive knowledge of international markets and the ability to support different technical and commercial requirements.
Direct manufacturing from our own stainless steel pipe fitting factory in Wenzhou, China.
An experienced professional and technical team focused on maintaining consistent product quality.
Effective production and cost-control systems designed to provide competitive factory pricing.
Extensive experience in the production, quality management, and international sales of stainless steel press fittings.
Place of Origin: Wenzhou, China
