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SS Weld Neck Slip-On Flange ANSI/GB/DIN SS304/316L PN25 1

SS Weld Neck Slip-On Flange ANSI/GB/DIN SS304/316L PN25 2

SS Weld Neck Slip-On Flange ANSI/GB/DIN SS304/316L PN25 3

SS Weld Neck Slip-On Flange ANSI/GB/DIN SS304/316L PN25 4

SS Weld Neck Slip-On Flange ANSI/GB/DIN SS304/316L PN25

Material:

SS304 (AISI 304), SS316L (AISI 316L)

Brand:

Customizable/OEM

Model:

SS-SO-FLANGE-PN25

MOQ:

5 PCS (Sample order available for 1 PC)

Payment Terms:

T/T (30% advance, 70% before shipment), L/C at sight, Western Union

Delivery Time:

5–12 working days (in-stock sizes); 15–25 working days (customized sizes)

Port of Loading:

Ningbo Port / Shanghai Port

Certifications:

ISO9001, CE, SGS, Material Test Report (MTR), 3.1B Certificate

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SS316 stainless steel

Product Features

High-quality SS304 (AISI 304) / SS316L (AISI 316L) stainless steel, resistant to acid, alkali, and industrial corrosion. 2. Neck design: Short neck enhances connection strength, suitable for medium-pressure (PN16-PN40) systems (superior to plain slip-on flanges). 3. Standard compliance: Manufactured per ANSI B16.5, GB/T 9116, DIN 2512 to ensure dimensional accuracy and global interchangeability. 4. Installation: Slip-on structure simplifies pipe alignment; welding (inner + outer seams) ensures leak-proof performance. 5. Surface treatment: Pickling passivation (standard) removes oxide layer; optional mirror polishing (Ra ≤ 0.8μm) for sanitary scenarios.

DSC09567

DSC09568

Product Parameters

Material	SS304 (AISI 304), SS316L (AISI 316L)
Type	Weld Neck Slip-On (SO)
Pressure Rating	PN10, PN16, PN25, PN40
Standards	ANSI B16.5, GB/T 9116-2020, DIN 2512, JIS B2220
Working Temperature	-20℃ ~ 450℃

Description

Product Details

Neck advantage

Short neck distributes pressure evenly, reducing stress on the welding seam (safer for medium-pressure pipelines).

Tight sealing

Precision-machined RF/FF face matches with asbestos-free gaskets (EPDM, PTFE) to prevent fluid leakage.

Versatility

Compatible with stainless steel, carbon steel, and alloy steel pipes; suitable for both indoor and outdoor use.

Customization

Neck length, bolt hole quantity, and surface finish can be adjusted per customer’s technical drawings.

Industry

Applications

Oil & gas industry: Medium-pressure oil transmission lines, gas gathering pipelines.

Chemical sector: Corrosive fluid pipelines (e.g., methanol, weak acid solutions).

Water treatment: High-pressure water supply, sewage treatment recycling systems.

Power industry: Cooling water pipelines for thermal power plants.

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