Gold Member Since 2007
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Zhejiang Guanlong Machinery Valve Co., Ltd.

Corrosion Proof Valve, Teflon Lined Butterfly Valve, PFA Coated Butterfly Valve manufacturer / supplier in China, offering Anti Corrosive PTFE Lined Butterfly Valve (PTFE / PFA / FEP / PO), 2/3 Way Solenoid Valve DC24V/AC220V, Globe Double Chamber Adjustable Pressure Regulating Pressure Reducing Valve (Yx741X) and so on.

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Supplier Homepage Product Butterfly Valve Anti Corrosive PTFE Lined Butterfly Valve (PTFE / PFA / FEP / PO)

Anti Corrosive PTFE Lined Butterfly Valve (PTFE / PFA / FEP / PO)

FOB Price: US $40 / Piece
Min. Order: 1 Piece
Min. Order FOB Price
1 Piece US $40/ Piece
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Port: Ningbo, China
Transport Package: Bubble Plastic Paper + Plywood Case
Payment Terms: L/C, T/T

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Basic Info
  • Model NO.: GLTD371
  • Connection Form: Wafer, Flange, Lug etc
  • Seal Form: Force Sealed
  • Work Pressure: Pn1.0MPa, 1.6MPa
  • Material of Seal Surface: Anit Corrosive Soft Sealing
  • Application: Industrial Usage
  • Specification: DN50~DN1600
  • Driving Mode: Manual,Worm Gear,Pneumatic, Electric-Motorized
  • Structure: Centre Sealing
  • Valve Stem: Normal
  • Working Temperature: -30 ~200ºC
  • Valve Body: Casting
  • Trademark: KARFAR / OEM
Product Description
Anti Corrosive PTFE Lined Butterfly Valve
MODEL: GLTD371


 Lining material: PTFE, PFA, FEP, PO etc.
Connection type: wafer, flange, lug etc. 
Operation methods: manual, worm gear, electric, pneumatic and hydraulic actuator. 

▪The lined butterfly valves bi-directional flow is possible at maxmium operating pressure. Since the valve port corresponds to the piping diameter, a high flow capacity is guaranteed.

▪ It is outstanding for ease of maintenance and long service life.
The concentric design is commonly used in the power generation, brewing, water and food industries and suitable for both gaseous and liquid service. Typically applied in chemical/petrochemical process, food and beverage, and pulp and paper etc. 


Material Specification
No.NameMaterial
1BodyA216WCBA351 CF8/A351 CF8M
2Stem2Cr13(SS420)  SS410 17-4PH
3Shaft sleeveSS304
4O-ringVITON  VITON+FEP   VITON+PFA
5DiscA216 WCB+Lining materialCF8/CF8M+Lining material
6SeatPTFE RPTFE PFA FEP PO
7Elastomer BackingSilicone rubber, VITON
8Body boltA193 B7A320 B8
9BoltA193 B7A320 B8

Technical Specification
Design & Manufacture StandardHG/T 3704, GB/T 12237API 6D
Face-to-face DimensionHG/T 3704, GB/T 12221ASME B16.10
Flange StandardHG/T 20592, GB/T 9119ASME B16.5, JIS B2220
Inspection and Test StandardGB/T 13927, JB/T 9092API 598
Nominal Diameter(MPa)1.01.6CLASS150
Pressure Test( MPa)Shell Test1.51.51.5
 High Pressure Sealing1.11.11.1
 Low Pressure Sealing0.60.60.6
Temperature Range(ºC)PFA -30~200                FEP: -30~150                  GXPO: -10~80
Applicable mediumStrong corrosive medium i.e. hydrochloric acid, Nitric acid, Hydrofluoric acid, Liquid chlorine, Sulfuric Acid and Aqua regia etc.
Note: Test standard refers general valve standard, high pressure should be customized for processing.

Anti Corrosive PTFE Lined Butterfly Valve (PTFE / PFA / FEP / PO)



Structure diameter:
Anti Corrosive PTFE Lined Butterfly Valve (PTFE / PFA / FEP / PO)


ASME B16.5 / JIS B2220 (Unit:mm)
DNNPSLPN1.0MPaPN1.6MPaD2H1H2A
DD1Z-MDD1Z-M
50243150120.54-M161551204-M16907011296
652 1/246180139.54-M161751404-M1611080125112
80346190152.54-M161851508-M1613089135130
100452230190.58-M162101758-M16148105.5142150
1255562552168-M202502108-M20181121165178
150656280241.58-M202802408-M20202145180206
200860345298.58-M2033029012- M20263177228260
250106840536212-M2440035512-M22313205278317
300127848543212-M2444540016-M22368235295367
350147853547612-M2749044516-M22415260341466
4001610259554016-M2756051016-M24484299390495
4501811463557816-M3062056520-M24519320442630
5002012770063520-M3067562020-M24569352.5470694
 
Anti Corrosive PTFE Lined Butterfly Valve (PTFE / PFA / FEP / PO)
HG/T 20592 (Unit:mm)
DNNPSLPN1.0MPaPN1.6MPaD2H1
   DD1Z-MDD1Z-M  
502431651254-M161651254-M169070
652 1/2461851454-M161851454-M1611080
803462001608-M162001608-M1613089
1004522201808-M162201808-M16148105.5
1255562502108-M162502108-M16181121
1506562852408-M202852408-M20202145
2008603402958-M2034029512-M20263177
250106839535012-M2040535512-M24313205
300127844540012-M2046041012-M24368235
350147850546016-M2052047016-M24415260
4001610256551516-M2458052516-M27484299
4501811461556520-M2464058520-M27519320
5002012767062020-M2471565020-M30569352.5

We also manufacture as per your request or drawing.
We welcome your comments and inquiries.
company website: http://en.chinaguanlong.net/ 

TEL: 0086-577-67379225, 67318107   
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