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Plunger Piston Valves

Posted at: Offers to Sell and Export | Posted on: Thursday 13 May 2021 4:01 am | Poster last visit: Tuesday 23 November 2021 |

Product Category: Main » Industrial Production and Manufacturing Services » Manufacturing support services » Manufacturing equipment maintenance and repair services » Valve or valve part testing maintenance or repair service » Plunger Piston Valves

Product Photo:

plunger piston valves

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Product Description:

FREE-VALVE’s plunger piston valves are used for cutting off or connecting the medium of pipelines of

various kinds of systems such as petroleum, chemical industry, electric power, etc.

Working principle and Characteristics:

Plunger piston valves are variations of globe valves. Disc and seat are designed basing on the plunger principle.For valves opening and closing manually, valve will close when turning clockwise, valve will open when turning anticlockwise.Driving valve disc will be moved up and down through the lifting motion of stem to reach the opening and closing of the seal ring.

The plunger piston valve belongs to the forced sealing type valve. The plunger and the sealing ring use interference fit. When the plunger enters the sealing ring, the sealing ring is compressed and tightly enveloped against the surface.

At this time, diameter-phase component force produced on sealing ring will be greater than the fluid component force, so as to ensure the tight sealing.

When the plunger is pulled out, the sealing ring is restored to its original state under the elastic action of the material.The sealing ring is made of a new type of non-metallic material, which can withstand long time using on working service.

Technical Specification

Flange Standards :HG/T20592

Nominal Pressure: 1.0MPa, Class150

Size Range :DN50~DN 200, NPS2 ~NPS8

Connection type:Flange

Working Temperature ≤250℃

Operating method: Manual, Pneumatic and Electric

Pressure test GB/T13927

Face to Face GB/T12221


You will find FREE-VALVE’s plunger piston valves are installed at petroleum, chemical industry, electric power, etc.

Company Contact:

No member photo
Contact Name: Doris Wang
Company Name: Zhengzhou Free Fluid Control Technology Co., Ltd
Email: Email
Tel: +86-371-55019379
Fax: +86-371-55019379
Street Address: No.76 Cuizhu Road,
High-tech Development Zone,
Zhengzhou City, Henan, China
Other Contact Info:
Wechat Id: Free_valve
Whatsapp: +8613460250295
Skype: Email
Mobile: +8613460250295
Website: http://www.free-valve.com
Member name: ZhengZhouFreeFluidControl
Country: China-CN China
Member Since: 14 October 2020
Total Leads: 30 ZhengZhouFreeFluidControl Import Export Business Leads
Business focus: Valve, Gate Valve, Ball Valve, Globe Valve
Chat: Chat with Suppliers
Verify: Safe Import Export Tips

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