Tel: +86-577-86801027 / E-mail: cooper@lianhevf.com
Stainless Steel Fitting
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Size Range: 1/4"–4" (DN10–DN100)
Wall Thickness: 0.6–2.0 mm
Applicable Standards: GB/T 19228.2-2011, CJ/T 152-2016, CJ/T 466-2014, 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
Available Sealing-Ring Materials: CIIR, EPDM, PTFE, and NBR
Socket-End Options: D-Type and S-Type
Available Thread Standards: NPT, BSPP, and BSPT
Nominal Pressure: PN16
Hydrostatic Test Pressure: 2.5 MPa
Airtightness Test Pressure: 1.05 MPa
Applicable Gasket Temperature Range: -20°C to +110°C
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, private brands, batch information, and other 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 documentation for applicable products, and Sanitary License
Brand: LIANHE
HS Code: 7307230000
Place of Origin: Wenzhou, Zhejiang, China
The actual working pressure and temperature limits depend on the product size, wall thickness, stainless steel grade, sealing-ring material, transported medium, thread standard, socket profile, and applicable project requirements.
The products can be supplied for use with a range of compatible liquid and gaseous media, including:
Drinking water
Cold water and hot water
Wastewater
Industrial water
Oil and compatible liquid media
Gas and compatible gaseous media
Before selecting a material or sealing ring, customers should confirm its compatibility with the transported medium, operating pressure, working temperature, and installation environment.
The products can be used in a variety of commercial, residential, industrial, marine, and infrastructure projects, including:
Engineering and infrastructure projects
Ships and marine installations
Commercial buildings
Residential buildings
Hospitals and medical facilities
Hotels and public facilities
Environmental protection equipment
Water-treatment systems
Heating installations
Air-conditioning systems
Industrial processing facilities
They may be applied in water supply systems, gas distribution systems, direct drinking-water pipelines, wastewater systems, environmental protection pipelines, steam systems, heating networks, air-conditioning pipelines, and industrial water systems.
The final configuration should be selected according to the working pressure, operating temperature, stainless steel grade, sealing-ring material, thread type, connection profile, and local project standard.
High mechanical strength and structural stability
Excellent corrosion and oxidation resistance
Long operating service life
Low internal flow resistance
Good vibration and seismic performance
Reliable connection performance
Environmentally responsible stainless steel construction
Fast and convenient installation
Suitable for concealed installation where permitted
Reduced overall installation and maintenance costs
Good resistance to wear and deformation
Hygienic construction for suitable drinking-water systems
Dependable sealing performance with reduced leakage risk
Correct pipe preparation, insertion depth, sealing-ring selection, thread identification, tool calibration, and final inspection are essential for reliable performance.
D-type and S-type socket profiles may require different pressing tools or jaws. Customers should confirm the required connection profile before ordering and installation.
NPT, BSPT, and BSPP threads have different profiles and sealing methods. They should not be connected interchangeably unless their dimensional and sealing compatibility has been technically confirmed.
Available testing procedures 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 testing items and sampling ratio depend on the selected specification, governing standard, intended application, and confirmed inspection plan.
Products are inspected before shipment. Standard delivery inspection covers:
Material grade
Surface condition
Product dimensions
Outside diameter and wall thickness
Socket dimensions
Thread dimensions, where applicable
Hydrostatic performance
Airtightness performance
Product markings
Quantities and packaging
Inspection reports and supporting quality documents can be supplied according to the confirmed order requirements, including:
EN 10204 3.1 Material Test Certificate
Raw-Material Inspection Certificate
Radiographic Testing Report, when applicable
Hydraulic Sealing Test Report
Thread Inspection Report, where applicable
Socket and Dimensional Inspection Report
Third-Party Inspection Report
Other project-specific quality documents
The required inspection scope, testing ratio, documentation, and third-party witnessing arrangements should be confirmed before production.
LIANHE applies in-process and final inspection procedures throughout production. Products are checked before delivery to verify that their materials, dimensions, surfaces, connection areas, markings, and packaging meet the confirmed order requirements.
The principal 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, outside diameter, wall thickness, threads, and other critical dimensions after machining and mechanical forming.
Checking weld dimensions, weld appearance, and surface quality after welding and forming, where applicable.
Inspecting the product surface, dimensions, and connection areas 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.
Inspecting product markings, 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 raw-material preparation, cutting, mechanical forming, welding, heat treatment, thread processing, surface finishing, testing, product marking, inspection, and export packaging.
Each product is protected with a plastic bag to reduce exposure to moisture, dust, and surface contamination. The products are then packed in reinforced export cartons and consolidated in wooden cases when required.
Customized cartons, customer logos, labels, barcodes, pallet packing, and other export packaging arrangements can be provided according to confirmed order requirements.
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 delivered by sea freight, air freight, land transportation, or international express service.
The shipping method can be selected according to the order quantity, package volume, destination, required delivery schedule, and transportation budget.
Minimum Order Quantity: Normally 5–10 pieces, depending on the product specification and current inventory.
We maintain inventory for many regular products and commonly requested sizes. Selected products may have up to 5,000 pieces available. Because inventory changes continuously, actual stock quantities and immediate-delivery availability should be reconfirmed when requesting a quotation.
Free Samples: Samples may be provided free of charge for dimensional verification and quality evaluation. International express delivery charges are normally paid by the recipient.
Quotation Time: Normally within three working hours after receiving complete specifications and quantity requirements.
Quotation Validity: Normally 3–7 days, subject to stainless steel raw-material prices, exchange rates, and current market conditions.
Regular-size products 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 specifications, material availability, order quantity, inspection requirements, customized packaging, and current 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 order number, product specification, installation conditions, operating pressure, working temperature, transported medium, and relevant photos or videos to assist with technical evaluation.
Extensive knowledge of international markets and the ability to support different technical and commercial requirements.
Direct manufacturing from our own factory in Wenzhou, Zhejiang, China.
An experienced technical and production team focused on maintaining consistent quality.
Effective production and cost-control systems designed to provide competitive factory pricing.
Extensive experience in production, quality management, export packaging, and international sales.
Brand: LIANHE
Place of Origin: Wenzhou, Zhejiang, China
