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هوائي النمط الإيطالي الكرة صمام

Flanged PTFE-lined butterfly valve (Midline)

هوائي النمط الإيطالي الكرة صمام

Size Range: DN40~DN1200
Pressure Range: PN6~PN16
End Connection: Wafer
Material: Cast Iron, Ductile Iron, Stainless Steel
Seals: EPDM, PTFE, NBR
Valve Design: Electric Butterfly Valve with Soft Seal
Face to Face: ISO 5752, API 609
End Connection: ANSI B16.1, ISO 7005
Testing & Inspection: API 598, ISO 5208
Suitable Medium: Water, Oil, Gas, Light Chemicals

نظرة عامة على المنتج

The Flanged PTFE-Lined Butterfly Valve (Midline) is a corrosion-resistant flow control valve designed for handling aggressive media in chemical, pharmaceutical, wastewater, and other industrial applications. With a midline (center-mounted) disc design and full or semi-PTFE lining, this valve provides excellent chemical resistance, minimal pressure drop, and reliable bi-directional sealing. The flanged ends ensure secure and easy installation between pipeline flanges, making it suitable for a wide range of pressure classes and sizes (DN40–DN1200).

Constructed with high-quality materials such as WCB, CF8, and various stainless steels, and available with different linings (PTFE, FEP, PFA, PO), the valve can handle highly corrosive and toxic fluids while maintaining tight shut-off. It supports manual, pneumatic, or electric actuation options, with models including wafer and lug styles for flexible installation.

مواصفات المنتج

◇ Main Spare Part Bill of Materials

Serial No.Part NameGrey Cast Iron (Z)Carbon Steel (C)Stainless Steel (P)SS316 (R)Low Carbon SS (PL)Low Carbon SS (RL)
1Upper and Lower BodyHT250WCBCF8CF8MCF3CF3M
2DiscWCB35 (Steel)CF8CF8MCF3CF3M
3Butterfly Plates2Cr132Cr131Cr18Ni9Ti1Cr18Ni12Mo2Ti00Cr18Ni1000Cr18Ni14Mo2
4Lining Layer / SeatPTFE(F4), PCTFE(F3), FEP(F46), PFA (F4), PO (Polyolefin)
5O-ringFPM (Viton)
6Spring Section (Seal)Silicone Rubber (Si)
7Adjustment in Block0Cr18Ni90Cr18Ni91Cr18Ni12Mo2Ti00Cr18Ni1000Cr18Ni14Mo21Cr18Ni9Ti
8Bolt35351Cr17Ni21Cr17Ni21Cr18Ni9Ti1Cr18Ni9Ti
9Nut45450Cr18Ni90Cr18Ni90Cr18Ni90Cr18Ni9
10HandleZL101 (Cast Aluminum with Handle Combination)

معلمات المواصفات

Flanged PTFE-lined butterfly valve(midline)

Main Connection Dimensions and Weight

DN (mm)NPS (inch)LDD1D2fbZ–ΦdD0HWeight (kg)
PN0.6MPa
401 1/2106130100803164–Φ1416014010
502108140110903164–Φ1420016012
652 1/21121601301103164–Φ1425016013
8031141851501253184–Φ1825017014
10041272051701453184–Φ1825018016
12551402352001753208–Φ1830027518
15061402602252003208–Φ1830029538
20081523152802553228–Φ18200*32074
2501025037033531032412–Φ18200*385105
3001227043539536242412–Φ23240*390142
3501429048544541242612–Φ23240*460179
4001631053549546242816–Φ23280*510220
4501833059055051842816–Φ23280*540268
5002035064060056843016–Φ25320*570378
6002439075570567053020–Φ25320*660608
7002843086081077553224–Φ25360*7101050
8003247097592088053424–Φ30360*7801320
900365101075102098053624–Φ30380*8851795
10004055011751120108053628–Φ30400*9901900
12004863014001340129554032–Φ34400*11702110
DN (mm)NPS (inch)LDD1D2fbZ–ΦdD0HWeight (kg)
PN1.0MPa
401 1/2106145110853184–Φ1816014010
5021081601251003204–Φ1820016012
652 1/21121801451203204–Φ1825016513
8031141951601353228–Φ1825017014
10041272151801553228–Φ1825018016
12551402452101853248–Φ1830027518
15061402802402103248–Φ2330029538
20081523352952653268–Φ23200*32074
2501025039035032032812–Φ23200*385105
3001227044040036842812–Φ23240*390142
3501429050046042843012–Φ23240*460179
4001631056551548243216–Φ23280*510220
4501833061556553243216–Φ25280*540268
5002035067062058543420–Φ25320*570378
6002439078072568543620–Φ25320*660608
7002843089584080054020–Φ30360*7101050
80032470101095090554424–Φ30360*7801320
9003651011101050100554624–Φ34380*8851795
10004055012201160111555028–Φ34400*9901900
12004863014501380132555632–Φ41400*12002150

تطبيقات المواصفات

  • Chemical Processing: Ideal for conveying acids, alkalis, solvents, and corrosive chemicals.
  • Pharmaceutical & Biotech: Suitable for clean-in-place (CIP) processes and sterile environments.
  • Water & Wastewater Treatment: Resistant to scaling, corrosion, and biofouling in aggressive water systems.
  • Pulp & Paper Industry: Controls flow in bleach and acid circulation systems.
  • Mining & Metallurgy: Withstands abrasive and corrosive slurries.
  • Food & Beverage: Ensures hygienic, corrosion-free flow control in CIP and SIP systems.

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