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هوائي النمط الإيطالي الكرة صمام

Wafer manual butterfly valve type (middle)

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 Rubber-Lined Wafer Manual Butterfly Valve is a corrosion-resistant, cost-effective flow control device designed for reliable shut-off and throttling in low to medium pressure systems. It features a compact wafer-style body that fits between flanges, a manual lever or gear operator, and a resilient rubber lining (commonly EPDM, NBR, or other elastomers) that ensures tight sealing and protects the valve body from aggressive media. The valve’s disc rotates 90 degrees to control fluid flow with minimal pressure drop and torque.

Built for durability and ease of use, the valve’s rubber lining reduces internal wear and extends service life—making it a dependable choice for frequent open-close operations. The streamlined structure simplifies maintenance, and its lightweight design is ideal for space-restricted installations.

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

Midline Wafer Type Soft Sealing Butterfly Valve

◇ Main Connection Dimensions and Weight

DN (mm)NPS (inch)LDD1D2FBZ–⌀dD0HWeight (kg)
401 1/233130100803164–⌀141601402.5
50243140110903164–⌀142001453.5
652 1/2461601301103164–⌀142501554.5
803461851501253184–⌀182501656
1004522051701453184–⌀182501807.5
1255562352001753208–⌀1830020311
1506562602252003208–⌀1830022516
2008603152802553228–⌀18200*27548
250106837033531032412–⌀23200*31560
300127843539536242412–⌀23240*34875
350147848544541242612–⌀23240*41582
4001610253549546242816–⌀23280*460123
4501811459055051842816–⌀23320*500150
5002012764060056843020–⌀23360*530180
6002415475570567053020–⌀25320*670250
7002816586081077553224–⌀25360*755315
8003219097592088053424–⌀30360*805385
900362031075102098053624–⌀30380*995420
10004021611751120108053628–⌀30400*1170620
12004825414001340129554032–⌀34400*1295788

PN1.0MPa

تطبيقات المواصفات

Rubber-lined wafer manual butterfly valves are widely used in:

  • Water treatment plants – for isolating or throttling clean or treated water

  • HVAC systems – regulating chilled water, cooling tower flow, and ventilation circuits

  • Chemical processing – handling mildly corrosive fluids with elastomer-compatible media

  • Pulp and paper mills – managing slurry and recycled water systems

  • Mining and minerals – for slurry, tailings, and process water

  • Irrigation and agriculture – water distribution and control systems

Their versatility, affordability, and ease of operation make them suitable for general industrial and utility applications where rubber lining provides sufficient chemical compatibility.

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