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Pipeline Zheyi (Wuhan) Co., Ltd.
la comanda SCH8O/DIN UPVC/CPVC Handle Butterfly Valve Pentru industria alimentară/auto/electronică
SCH8O/DIN UPVC/CPVC Handle Butterfly Valve

SCH8O/DIN UPVC/CPVC Handle Butterfly Valve

The UPVC/CPVC manual butterfly valve is a highly efficient and reliable fluid control device designed for various industrial and construction applications. It is suitable for controlling the flow of corrosive media such as acids, alkalis, and wastewater.

Its design ensures lightweight and easy operation, making it suitable for installation in confined spaces. The flexible opening and closing action, operated via a handle, allows users to easily adjust flow. The valve provides sealing performance, effectively preventing leaks and ensuring the safety and stability of the system. Its resistance to high temperatures and pressures enables stable operation under harsh conditions, making it widely used in water treatment, chemical processing, petroleum, and pharmaceutical industries.

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parametru aplicație Standarde tehnice
  • SIZE/NOM.

    dn63

    dn75

    dn90

    dn110

    dn140

    dn160

    dn225

    (DN50)

    (DN65)

    (DN80)

    (DN100)

    (DN125)

    (DN150)

    (DN200)

    (2")

    (2-1/2")

    (3")

    (4")

    (5")

    (6")

    (8")

    D1

    DIN

    160

    180

    196

    228

    258

    287

    344

    ANSI

    155

    178

    192

    229

    254

    284

    343

    JIS

    120

    140

    150

    175

    210

    240

    290

    D2

    DIN

    125

    145

    160

    180

    210

    240

    295

    ANSI

    121

    140

    152

    191

    216

    241

    298

    JIS

    73

    90

    105

    132

    158

    186

    238

    N-Φ

    DIN

    4-Φ19

    4-①19

    8-Φ19

    8-Φ19

    8-Φ19

    8-Φ23

    8-Φ23

    ANSI

    4-Φ19

    4-Φ19

    4-Φ19

    4-Φ19

    8-Φ22

    8-Φ22

    8-Φ22

    JIS

    4-Φ19

    4-Φ19

    8-Φ19

    8-Φ19

    8-Φ23

    8-Φ23

    12-Φ23

    d

    48

    63

    78

    98

    122

    146

    199

    Φ1

    124

    124

    124

    124

    170

    170

    170

    H

    223

    245

    270

    308

    352

    382

    452

    H1

    100

    112

    120

    140

    168

    181

    215

    H2

    143

    155

    172

    194

    223

    239

    280

    L

    43

    46

    49

    54

    64

    70

    88

    L1

    190

    190

    240

    240

    310

    310

    310

SCH80 / DIN · LEVER OPERATED
UPVC / CPVC Handle Butterfly Valve
Wafer · Lug · Full Sealing · PTFE/EPDM Liner
The SCH80/DIN UPVC/CPVC Handle Butterfly Valve is a quarter-turn flow control device designed for on-off and throttling service in corrosive and high-purity fluid systems. Manufactured to ASTM SCH80 and DIN standards, this valve features a disc that rotates 90° to regulate flow, with a lever handle providing visual position indication. The valve body is available in UPVC for general chemical service and CPVC for elevated temperature applications up to 93°C. The resilient liner — available in EPDM, PTFE, or Viton — provides bubble-tight shut-off across the full pressure range. The wafer and lug configurations allow for dead-end service and easy installation between standard flanges.
DN40–DN300
Size Range
PN10–PN16
Pressure Rating
–20°C to +93°C
CPVC Range
Lever Handle
Operation
Liner Sealing
The replaceable liner (EPDM, PTFE, or Viton) provides a tight seal around the disc and flange faces, eliminating leakage paths and simplifying maintenance.
Chemical Compatibility
UPVC and CPVC bodies resist a broad spectrum of acids, bases, and salts. The liner material can be selected to match specific chemical exposure requirements.
Throttling Capability
The butterfly design allows for precise flow modulation across the 0–90° rotation range, providing control flexibility beyond simple on-off service.
Wafer / Lug Options
Wafer style offers lightweight, low-cost installation between flanges. Lug style enables dead-end service and isolation of downstream piping sections.
Technical Specifications
Body Material UPVC · CPVC
Disc Material Solid UPVC/CPVC · Coated Ductile Iron (optional)
Liner Material EPDM · PTFE · Viton (FKM)
Connection Types Wafer · Lug (DIN or ANSI drilling)
Standards ASTM D2467 (SCH80) · DIN 8061/8062 · ISO 16136
Handle Type Lever handle with 10-position locking plate
Liner Selection Guide
EPDM Water, mild acids, alkalis, up to 80°C
PTFE Aggressive chemicals, solvents, high-purity, up to 93°C
Viton (FKM) Hydrocarbons, oils, strong oxidizers, up to 90°C
Liner selection should be verified against specific process chemistry and temperature to ensure service life and sealing performance.
Application Fields
Chemical Processing
Acid and alkali transfer, dosing systems, reactor feed lines
Electronics & Semiconductor
Ultrapure water distribution, chemical mechanical planarization (CMP) slurries
Energy & Photovoltaics
Battery electrolyte, solar cell etching, nuclear cooling water
Water Treatment
Industrial wastewater, RO feed, desalination, potable water
Pharmaceutical & Food
Deionized water, CIP systems, sanitary process lines
Automotive & General
Paint circulation, parts washing, cooling water, wastewater
Installation Notes
  • Wafer installation: Center the valve between flanges. Use appropriate flange bolts and nuts. Tighten evenly in a cross pattern.
  • Lug installation: Bolt directly to one flange for dead-end service. Use full-face gaskets on both sides.
  • Flange standards: Compatible with DIN PN10/PN16 or ANSI Class 150 flanges. Verify bolt hole alignment.
  • Disc positioning: The disc should be in the closed position during installation to avoid damage to the liner.
  • Line velocity: For abrasive media, limit velocity to 2 m/s to extend liner life. For clean media, up to 5 m/s is acceptable.
  • Actuator mounting: For automated operation, use ISO 5211 mounting pad. Verify torque requirements.
Critical Operating Limits
  • Do not exceed 60°C for UPVC bodies. CPVC max 93°C continuous.
  • Not rated for steam service or rapid thermal cycling.
  • Avoid operating the valve in the 5–85% open range for extended periods in abrasive media.
  • Do not use EPDM liner with hydrocarbon solvents, oils, or strong oxidizers.
  • PTFE liner has limited abrasion resistance — not recommended for slurries with high solids content.
  • Protect from direct UV exposure. Use UV-stabilized material or apply protective coating.
  • Do not exceed the maximum pressure differential across the disc at any temperature.
Common Issues & Solutions
● Valve difficult to operate
Liner may be swollen or disc binding. Check liner compatibility with media. Lubricate stem with silicone-based grease. If resistance persists, replace liner.
● Leakage at flange connection
Verify flange bolts are torqued to specification (typically 20–30 Nm for DN50–DN150). Ensure gasket surfaces are clean and undamaged. Replace liner if flange face is compromised.
● Leakage past disc in closed position
Inspect liner for wear or deformation at the disc seating area. Replace liner if worn. For PTFE liners, check for cold flow at elevated temperatures.
● Handle position not locking
Check the locking plate for wear. Tighten the handle screw. Replace locking mechanism if worn.
Companie
Pipeline Zheyi (Wuhan) Co., Ltd.
Pipeline Zheyi (Wuhan) Co., Ltd.

ZHEYI Group Da China SCH8O/DIN UPVC/CPVC Handle Butterfly Valve Pentru industria alimentară/auto/electronică furnizor şi la comanda SCH8O/DIN UPVC/CPVC Handle Butterfly Valve Pentru industria alimentară/auto/electronică fabrică. Am fost fondați în 2007, concentrându-ne pe cercetarea și dezvoltarea, fabricarea, vânzarea și service-ul țevilor industriale din CPVC și UPVC. Compania a obținut o serie de certificări, inclusiv licența de producție a echipamentelor speciale, licența de igienă a produselor legate de apă din provincia Zhejiang, certificarea sistemului de management al calității IS09001, certificarea sistemului de management de mediu IS014001 și certificarea sistemului de management al sănătății și securității ocupaționale IS045001. Compania deține peste 50 de drepturi de proprietate intelectuală independente și drepturi de import și export auto-operate. Pentru a oferi produse diversificate și servicii mai bune, compania a introdus tehnologii avansate, echipamente de scule, materii prime și sisteme de management unice din Germania și Statele Unite. De-a lungul anilor, produsele noastre au fost utilizate pe scară largă în transportul prin conducte de lichide acide și alcaline, apă ultrapură, apă potabilă, apă pură de calitate electronică și ape uzate industriale în industriile chimică, metalurgică, fotovoltaică, energie nucleară, baterii litiu, semiconductori electronici, alimentară, medicală, auto, tratarea apei industriale și alte industrii. În prezent, Grupul ZHEYI a înființat peste 30 de companii de vânzări în toată țara, iar toate tipurile de produse sunt exportate în Europa, America, Asia de Sud-Est și alte țări și regiuni, fiind foarte apreciate de clienții interni și străini.

Certificat de onoare
  • ISO 9001: 2015
  • ISO 14001: 2015
  • ISO 45001: 2018
  • ISO 45001: 2018
  • ISO: 45001-2018 ro
  • National High-Tech Enterprise
  • Certificat
  • Certificat
Ştiri
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  • Pipeline Zheyi (Wuhan) Co., Ltd.
    Control strict al calității

    Grupul ZHEYI aderă la principiul „calității pe primul loc”, adoptă echipamente avansate la nivel internațional și materii prime de înaltă calitate, controlează strict fiecare verigă a producției și se angajează să ofere produse în curs de dezvoltare cu performanțe excelente și un aspect rafinat.

    Compania utilizează cele mai avansate echipamente de producție și materiale de înaltă calitate, inclusiv Sekisui din Japonia și Lubrizol din Statele Unite. „ZHEYI” combină perfect tehnologia de producție rafinată cu managementul profesional, iar fiecare produs este supus unui control strict al calității - de la producție, inspecție până la livrarea finală, asigurând combinația perfectă între aspect și funcționalitate.

  • Pipeline Zheyi (Wuhan) Co., Ltd.
    Testarea performanței de precizie
    La ZHEYI, fiecare produs este realizat meticulos, concentrându-se nu doar pe un design estetic rafinat, ci și pe o calitate intrinsecă excelentă. Testarea strictă a performanței asigură că produsul își poate menține stabilitatea și durabilitatea chiar și în condiții dure.:

    ● Testarea densității: Măsoară densitatea materialului pentru a asigura uniformitatea și stabilitatea structurilor.
    ● Testul de temperatură de înmuiere Vicat: evaluează gradul de înmuiere al materialelor în condiții de temperatură ridicată pentru a asigura capacitatea produsului de a rezista la deformare în diverse medii.
    ● Test la cuptor: simulează rezistența la căldură pe termen lung și verifică capacitatea produsului de a rezista la temperaturi ridicate pentru o perioadă lungă de timp.
    ● Test hidrostatic: Evaluează rezistența țevilor în condiții de presiune ridicată pentru a asigura siguranța și fiabilitatea produsului.
    ● Test de impact cu ciocanul: Testați rezistența la impact a produsului în timpul transportului, instalării și utilizării zilnice.

SCH8O/DIN UPVC/CPVC Handle Butterfly Valve Cunoștințe din industrie

How to correctly select UPVC/CPVC handle butterfly valve? Key parameters and industry application guide

UPVC (unplasticized polyvinyl chloride) and CPVC (chlorinated polyvinyl chloride) handle butterfly valves are widely used in many industries due to their excellent corrosion resistance, lightweight design and economy. Correct selection requires comprehensive consideration of material properties, operating parameters and industry needs. The following are key selection points and typical industry application analysis.

1. Key selection parameters
Media compatibility
UPVC is suitable for weak acids, weak bases and normal temperature water, while CPVC has higher temperature resistance (up to 90°C or more) and can withstand more corrosive media (such as concentrated acids and solvents).
It is necessary to confirm whether the medium components (such as chloride ions, organic solvents) react with the valve material.

Temperature and pressure range
UPVC is usually suitable for 0°C~60°C, and CPVC can be extended to -10°C~90°C.
The working pressure generally does not exceed PN16 (1.6MPa) and needs to be selected according to the pressure of the pipeline system.

Valve size and connection method
Common diameters are DN15~DN600, flange type (ANSI/DIN standard) or wafer type connection, which needs to match the pipe specifications.

Operation method
The handle butterfly valve is suitable for frequent manual opening and closing. If automatic control is required, a gearbox or pneumatic/electric actuator can be selected.

Sealing material
EPDM (water-resistant, weak acid and alkali), FKM (oil-resistant, strong acid) or PTFE (corrosion-resistant, high temperature), selected according to the medium.

II. Industry application guide
1. Safe drinking water
Applicable UPVC butterfly valves meet sanitary standards (such as NSF/ANSI 61) and are used in municipal water supply and water purification plant pipelines.
Pay attention to chlorine tolerance and avoid long-term contact with high-concentration disinfectants that may cause material aging.

2. Metallurgy industry
CPVC valves are more suitable for pickling and electroplating liquid (such as sulfuric acid and hydrochloric acid) transportation, and UPVC can be used in cooling water systems.

3. Photovoltaic
In the treatment of acid and alkali waste liquid in polysilicon production, CPVC has better corrosion resistance than metal valves.

4. Nuclear Power
Auxiliary cooling water or low-radioactive wastewater system needs to pass radiation resistance certification, and CPVC is usually selected to enhance stability.

5. Electronic Semiconductor
Ultrapure water (UPW) transportation requires no metal ion pollution, and UPVC butterfly valves are matched with high-purity EPDM sealing rings.

6. Medicine
Water for injection (WFI) or clean fluid pipelines, valves must meet FDA or GMP standards to avoid material precipitation.

7. Industrial Water Treatment
UPVC is suitable for reverse osmosis (RO) and softened water systems; CPVC is recommended for chemical agent addition (such as sodium hypochlorite).

8. Industrial Wastewater
In the case of heavy metal and high-salt wastewater, CPVC has better chemical corrosion resistance than UPVC.

III. Selection considerations
Avoid over-temperature use: UPVC is easy to deform at high temperatures, and CPVC needs to pay attention to long-term thermal stability.
Installation environment: Outdoor applications require UV protection (select gray/black valve body), and pay attention to low-temperature brittleness in cold areas.
Maintenance cycle: Regularly check the wear of the sealing ring to prevent medium crystallization or particulate matter from blocking the valve plate.

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