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Stainless Steel M x F Conical Seat Union

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Useful Information

Technical Specification

  • Material: Stainless Steel - CF8M (316)
  • Connection Type: Conical seat union (2-piece)
  • Standard: ISO 4144
  • Thread Type: BSPT Male x BSPP Female (ISO 7-1 / DIN 2999)
  • Thread Gender: Male x Female
  • Operating Temperature Range: -20°C to +220°C
  • Working Pressure: Up to 20 bar (temperature dependent)
  • Manufacturing Standard: ISO 9001:2015

Description

Designed for reliable and serviceable pipework connections, this conical seat union with male-to-female threads ensures a pressure-tight seal, even under fluctuating temperature and load conditions. Manufactured from premium 316 stainless steel (CF8M), it delivers high corrosion resistance and mechanical strength across a wide temperature range. The union features a BSPT male inlet and BSPP female outlet, ensuring compatibility with standard threaded systems. Ideal for fluid, gas, and chemical installations requiring repeated assembly or maintenance.

Key Features & Benefits

  • BSPT male x BSPP female threads for versatile compatibility
  • Precision-engineered conical seat ensures a robust, leak-free seal
  • Made from 316 stainless steel for excellent durability and corrosion resistance
  • ISO 4144 compliant, manufactured to ISO 9001:2015 quality standards
  • Suitable for use across pressure ranges up to 20 bar (temperature dependent)
  • Operating temperature range from -20°C to +220°C
  • Ideal for systems requiring frequent disassembly, inspection, or maintenance
  • Commonly used in chemical, marine, food-grade, and industrial applications

Nominal Diameter (inch) A (mm) B (mm) C (mm) Weight (kg)
1/4 44.8 10.3 13.5 0.072
3/8 48.3 11 15 0.123
1/2 54.8 11.9 16.3 0.159
3/4 58.8 12.9 17.3 0.234
1 68.8 15.1 20.3 0.313
1 1/4 75.5 16.1 22.3 0.541
1 1/2 79 16.9 24.2 0.615
2 91 19.2 27.2 1.009

 

Temperature (°C) Non-shock maximum
working pressure (bar)
-20 to 40 20
100 16.5
150 15
200 14
220 13.5

 

IMPORTANT: The technical data given on this website is for preliminary information purposes only and is published without guarantee. All line drawings are for illustrative purposes only and should not be regarded as wholly accurate in every detail. We reserve the right to withdraw or to alter the specification of any product without notice. For more information, please consult our Terms of Business.

If you require any further information, our excellent customer service team is here to help so please call us on 01794 835835.

 

More Info
Grouped product items
Code Product Name List Price You Save You Pay Quantity
404014 SS Conical Seat Union M/F 1/4" £7.58 45%
You Pay:  £4.17
404015 SS Conical Seat Union M/F 3/8" £9.56 45%
You Pay:  £5.26
404016 SS Conical Seat Union M/F 1/2" £10.56 45%
You Pay:  £5.81
404017 SS Conical Seat Union M/F 3/4" £14.05 45%
You Pay:  £7.73
404018 SS Conical Seat Union M/F 1" £23.72 45%
You Pay:  £13.05
404019 SS Conical Seat Union M/F 1 1/4" £31.49 45%
You Pay:  £17.32
404020 SS Conical Seat Union M/F 1 1/2" £37.05 45%
You Pay:  £20.38
404021 SS Conical Seat Union M/F 2" £53.08 45%
You Pay:  £29.19
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