INDUSTRY COMPONENT

Pipe Fittings

Pipe fittings are components used to connect, terminate, control flow, or change direction in piping networks for industrial fluid transport.

Component Specifications

Definition
Pipe fittings are engineered components that join pipe sections, adapt to different sizes or shapes, and manage fluid flow within industrial piping systems. They ensure leak-proof connections, accommodate thermal expansion, and facilitate maintenance access. Common types include elbows (for directional changes), tees (for branching), couplings (for joining straight sections), reducers (for diameter transitions), caps (for termination), and unions (for easy disassembly).
Working Principle
Pipe fittings function by providing sealed, pressure-resistant junctions between pipe segments. They utilize mechanical connections (threaded, flanged, welded, or compression fittings) to maintain system integrity. The design accommodates fluid dynamics by minimizing turbulence and pressure drops, while materials and construction withstand operational stresses like temperature, pressure, and corrosion.
Materials
Common materials include carbon steel (ASTM A234), stainless steel (ASTM A403, grades 304/316), ductile iron, copper alloys (brass, bronze), PVC, CPVC, and PTFE. Selection depends on fluid compatibility, pressure ratings (e.g., Class 150, 300, 600), temperature range, and corrosion resistance requirements.
Technical Parameters
ParameterTypical rangeNotes & selection driver
End TypesButt Weld, Socket Weld, Threaded, Grooved
Size Range1/8" to 24" NPS
Pressure Rating150-2500 PSI
Connection TypesThreaded, Welded, Flanged, Compression
Temperature Range-20°C to 400°C

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards
ISO 7-1, ISO 228-1, ASME B16.11, ASME B16.9, DIN 2605, DIN 2999

Parent Products

This component is used in the following industrial products

Engineering Analysis

Risks & Mitigation
  • Leakage due to improper installation
  • Material degradation from chemical exposure
  • Pressure failure exceeding ratings
  • Thermal expansion stress
FMEA Triads
Trigger: Incorrect torque during assembly
Failure: Thread stripping or gasket blowout
Mitigation: Use calibrated torque wrenches and follow manufacturer specifications
Trigger: Material incompatibility with fluid
Failure: Corrosion or cracking
Mitigation: Conduct material compatibility tests and select certified materials (e.g., NACE MR0175 for sour service)

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance
Dimensional tolerances per ASME B16.9: ±1.5mm on diameter, ±0.8mm on wall thickness
Test Method
Hydrostatic testing at 1.5x design pressure for 10 minutes; non-destructive testing (NDT) like radiography for welded fittings

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation
Request current drawings, revision history, and a signed specification sheet.
Manufacturing capability
Verify equipment lists, process limits, capacity, and representative production evidence.
Inspection readiness
Confirm test methods, calibrated equipment, sampling plans, and traceable reports.
Supplier transparency
Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Pipe Fittings

12 companies list this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

China Sanitary Valve
Zhejiang, CN
Founded 200251~100 staff5,000-10,000 square meters
ISO9001 ASME CE Test Report
Listed on the company's own website · profile compiled by CNFX from public sources
CJan Fluid Technology Co., Ltd.
Shanghai, CN
ISO 9001:2015 IATF 16949
Listed on the company's own website · profile compiled by CNFX from public sources
Jianen Sanitary
Wenzhou, Zhejiang, CN
Founded 2009
3A CE ISO9001 SGS
Listed on the company's own website · profile compiled by CNFX from public sources
Landee Industries
Xiamen, Fujian, CN
Founded 1994230+ staff
ASME U-Stamp
Also makes: Butterfly Valve, Heat Exchanger, Valve Actuator and 7 more
Listed on the company's own website · profile compiled by CNFX from public sources
Dandong Foundry (Liaoning Borui Machinery Co., Ltd)
Dandong, Liaoning, CN
ISO 9001
Listed on the company's own website · profile compiled by CNFX from public sources
Wenzhou Deyi Machinery
Wenzhou, Zhejiang, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Chen Hsong
Qinghai, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Chinadrip Irrigation Equipment (Xiamen) Co., Ltd.
Xiamen, Fujian, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Dervos Valve
Zhejiang, CN
Also makes: Ball Valve, Check Valve, Butterfly Valve and 5 more
Listed on the company's own website · profile compiled by CNFX from public sources
Donjoy Technology
Wenzhou, Zhejiang, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Double-Lin
Zhejiang, CN
Also makes: Check Valve, Check Valves, Ball Valve and 2 more
Listed on the company's own website · profile compiled by CNFX from public sources
Epowermetals
Zhejiang, CN
Also makes: Butterfly Valve, Heat Exchanger, Steel Forging and 8 more
Listed on the company's own website · profile compiled by CNFX from public sources

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

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Frequently Asked Questions

What are the main types of pipe fittings?

Key types include elbows (90°, 45°), tees (equal, reducing), couplings, unions, reducers (concentric, eccentric), caps, and crosses. Each serves specific functions like direction changes, branching, or size transitions.

How do I select the right pipe fitting material?

Consider fluid type (corrosive, abrasive), pressure and temperature conditions, environmental factors, and compatibility with existing piping. For example, stainless steel is used for corrosive fluids, while carbon steel suits high-pressure steam systems.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

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