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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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Carbon steel flange butterfly valve

Butterfly valve is a valve that used disc-type butterfly plate reciprocates by 90 °to open,close or throttle the flow of media
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Product description

Introduction video of Butterfly Valve : 

Butterfly valve is a valve that used disc-type butterfly plate reciprocates by 90 °to open,close or throttle the flow of media

GZP butterfly valves are manufactured and modified to the latest edition of API609,BS5155,ASME B 16.34 .And passed the fire resistance inspection standards of API 607, API6FA and BS6755.All valves from GZP valves are strictly 100% tested before shipment to guarantee zero leakage.

The range of GZP butterfly valve design is as follows:
1.Size : 2” ~ 96”   DN 50 ~DN 2400
2.Pressure : 150lb ~2500lb   PN6~PN420
3.Material : carbon steel , stainless steel ,etc and other special material.
           Especially in NACE standard 
4.Connection ends: ASME B 16.5 in raised face (RF),Flat face (FF) , Ring Type(RTJ) ,wafer and lug.
                  ASME B 16.25 in butt welding ends
5.Face to face dimensions :ASME B 16.10
6.Temperature : -29℃ to 425 ℃

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

API609,BS5155,ASME B 16.34,DIN3354,

Face to Face

ASME B16.10,EN 558,DIN 3202

Pressures range

ANSI 150 ~ANSI 2500 ,PN6~PN420

Size range

DN50(2") ~DN2500 (96")

Body Material

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

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

Face to Face

ASME B 16.10,EN 558,DIN3202

Fange,Wafer,Lug Ends

ASME B16.5 ≤ DN600 (24") ASME B16.47 A ≥ DN650 (26")

BS 4504,DIN 2543-2545,EN1092

Butt-Weld BW Ends

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

Temperature range

-29°~ 425°C

 

Design Feature

Construction

Centric/Center line type ,Double offset type,triple offset type

Disc Type

Round Disc

Seat Sealing

Metal seat ,soft seat ,double sealing performance.

Valve Operation

Gear,pneumatic,Hydraulic,Electric actuators.

By passes,locking devices,extended stem,etc

Fire Safe Design

API 607, API6FA ,BS6755

Inspection and Test

 

Visual Inspection

MSS SP55

Material Inspection

PMI Test----Chemical Analysis

HB Test---Hardness Test

UT---Ultrasonic Test

RT---Radio-graphic Test

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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