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Short Description:

Soft  seat plug valve

Nominal Size Range: NPS 1/2” ~ 14”

Pressure Rating: Class 150LB ~ 900LB

Connection: Flange (RF, FF, RTJ), Butt Welded (BW), Socket Welded (SW)

Design: API 599, API 6D

Flange design: ASME B16.5

Butt welding design: ASME B16.25

All valves are designed to comply with the requirements of ASME B16.34, and the ASME as well as customers’ requirements as applicable.

NORTECH is one of the leading ChinaSoft  seat plug valve Manufacturer & Supplier.


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What is soft seat plug valve ?

Soft seat plug valves  is designed with the use of a plug with a through hole as the opening and closing parts,rotation with the stem to achieve the opening and closing action of the plug valve.Soft sealing sleeve plug valve is featured with simple structure,quick opening and closing,small flow resistance, convenient maintenance,good sealing performance,etc.Soft sealing sleeve plug valve has no cavity for medium accumulation,metal lip provides self-cleaning function when the sleeve plug valve turns,Soft sealing plug valve is suitable for cutting off or connecting pipeline medium under nominal pressure and working temperature -29℃ ~ 180℃ in petroleum,chemical industry,pharmaceutical industry,chemical fertilizer industry,electric power industry and other working conditions.

Main features of soft seat plug valve

features and benefits of Soft  seat plug valves

  • 1. The product has reasonable structure, reliable sealing, excellent performance and beautiful appearance.
  • 2.Its sealing is realized by the sealing face around the sleeve.It has unique 360 degree metal edge for protection and fixing of the Sleeve.
  • 3.Its characteristic double-direction flow makes installation and use more Convenient.
  • 4.The materials of the parts and sizes of flanges can be reasonably configured according the actual operation condition of the requirements of the customers,so as to meet the various needs of engineering.

Technical specifications of soft seat plug valve

Specifications of soft seat plug valves.

1)ANSI Series

Design and manufacture API 599, API 6D
Nominal Size NPS 1/2” ~ 14”
Pressure Rating Class 150LB ~ 900LB
End connection Flange (RF, FF, RTJ), Butt Welded (BW), Socket Welded (SW)
Pressure-temperature rating ASME B16.34
Face-to-face dimensions ASME B16.10
Flange dimension ASME B16.5
Butt welding ASME B16.25

All valves are designed to comply with the requirements of ASME B16.34, as well as customers’ requirements as applicable.

Applications of soft seat plug valve

Soft    seat plug valve is used in various industries such as petroleum,chemical industry, pharmacy, chemical fertilizer, power industry etc under nominal pressure of PN1.6-16MP ,and working temperatures of -20~180°C for various fluids.

  • *chemical / petrochemical products (cracking applications)
  • *crystallizing fluids
  • *fluid with solids
  • *cryogenic fluids
  • *acids / basis / aggressive mediums
  • *gases with solids

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