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Products: gate valve, stop valve, ball valve, check valve, plug valve, hard seal butterfly valve,

special valve for high temperature and high pressure power station.

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Flange plug valve

Plug valve is conical plunger type rotary valve, the valve is opened or closed by rotating 0°~90° so that the passage on the plug is identical to or separate from the passage on the body.
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Product description

Introduction video of Plug Valve :  

Plug valve is conical plunger type rotary valve, the valve is opened or closed by rotating 0°~90° so that the passage on the plug is identical to or separate from the passage on the body. The plug valve is a fast open or close through valve, It is usually used for cryogenic medium pipes that need fast full open or full close. The secondary plug valve is also suitable for conveying liquids containing suspended solids and particles, straight through plug valve with insulation jacket structure can transport materials containing crystals.

The main construction features of GZP plug valve are following:
1.The plug valve has simple structure, quick switch, small fluid resistance and fast angular stroke operation.
2.Soft sealing and lubricated hard seal are available.
3.Structure form: lifted type, sleeve connection type, inverted type.
4.Unique design can be antistatic, fire safety, safe to use.
5.The medium can flow in two directions, the installation direction is not limited, can be maintained on the pipeline, more convenient to use.

The range of GZP plug valve design is as follows:
1.Size: 2” to 14”, DN50 to DN350      
2.Pressure: Class 150lb to 900lb, PN10-PN350
3.Connection ends: ASME B 16.5 in raised face(RF), Flat face(FF) and Ring Type Joint (RTJ)
ASME B 16.25 in butt welding ends.
4.Face to face dimensions: conform to ASME B 16.10.
5.Temperature: -29℃ to 350 ℃
GZP valves can be manufactured in all kinds of materials to meet different requirements from clients, especially in NACE standard.
GZP valves can be equipped with gear operator, pneumatic actuators, Hydraulic actuators, Electric actuators, bypasses,locking devices,chainwheels,extended stems and many others are available to meet the customers’ requirements.

Technical data

Design

API 6D, API599

Pressures range

ANSI 150 ~ANSI 900 ,PN10~PN150

Size range

DN50(2") ~DN350 (14")

Body Material

Carbon Steel, Stainless Steel, Alloy Steel, Duplex Steel.etc.

NACE MR-01-75/NACE MR-01-03 Special Requirements

Face to face

API 6D, ASME B 16.10,EN 558,DIN3202

Fanged RF, FF, RTJ Ends

ASME B16.5

BS 4504,DIN 2543-2545,EN1092

Butt-Weld BW Ends

ASME B16.25 ,DIN 3239,BS 2080, EN 12627

Temperature range

-29°~ 350°C

Design feature

Construction

Lifted type,sleeve type,inverted type,jacketed type

Port

Full bore and Reduced bore

Plug Type

plug type

Stem

Blowout-proof stem

Seat Sealing

metal seat,soft seat,lubricated seal,

Valve Operation

Gear,pneumatic,Hydraulic,Electric actuators.

By passes,locking devices,extended stem,etc

Fire Safe

API 607, BS 6755,API599

Other design

Anti-static design,automatic pressure relief design, emergency grease injection design, drain valve, anti-corrosion design, anti-sulfur design,etc

Inspection and Test

Visual Inspection

MSS SP-55

Material Inspection

PMI Test----Chemical Analysis

HB Test---Hardness Test

UT---Ultrasonic Test

RT---RadiographicTest

MT---Magnetic Test

NDT Test Non-destructive

Dimension inspection

According to drawings

Valve Inspection and Test

API 598,DIN 3230,EN 12266,BS 5146

 

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keyword:gate valve, globe valve, ball valve, check valve, plug valve, hard seal butterfly valve

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