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.

Kontakt oss

Tidligere：SCH8O/DIN UPVC/CPVC Gear Butterfly Valve
Neste：SCH8O/DIN UPVC/CPVC Ⅱ Kuleventil

parameter søknad Tekniske standarder

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.

Bedrift

Zheyi Pipeline (Wuhan) Co., Ltd.

ZHEYI Group ja Kina SCH8O/DIN UPVC/CPVC Handle Butterfly Valve For matindustri/bil/elektronisk leverandør og skreddersydd SCH8O/DIN UPVC/CPVC Handle Butterfly Valve For matindustri/bil/elektronisk fabrikk. Vi ble grunnlagt i 2007, med fokus på forskning og utvikling, produksjon, salg og service av CPVC- og UPVC-rør i industrien. Selskapet har oppnådd en rekke sertifiseringer, inkludert produksjonslisens for spesialutstyr, hygienelisens for vannrelaterte produkter i Zhejiang-provinsen, IS09001-sertifisering for kvalitetsstyringssystem, IS014001-sertifisering for miljøstyringssystem og IS045001-sertifisering for HMS-styringssystem på arbeidsplassen. Selskapet har mer enn 50 uavhengige immaterielle rettigheter og egenutviklede import- og eksportrettigheter. For å tilby varierte produkter og bedre tjenester har selskapet introdusert avansert teknologi, verktøyutstyr og unike råvarer og styringssystemer fra Tyskland og USA. Gjennom årene har produktene våre blitt mye brukt i rørledningstransport av syre- og alkalivæsker, ultrarent vann, drikkevann, rent vann av elektronisk kvalitet og industrielt avløpsvann innen kjemisk, metallurgisk, solcellebasert, kjernekraft, litiumbatteri, elektronisk halvleder, mat, medisin, bil, industriell vannbehandling og andre industrier. For tiden har ZHEYI Group etablert mer enn 30 salgsselskaper over hele landet, og alle slags produkter eksporteres til Europa, Amerika, Sørøst-Asia og andre land og regioner, og er dypt favorisert av innenlandske og utenlandske kunder.

Æresbevis

Nyheter

Hvor brukes SCH 80 UPVC-rør i industrielle og kommersielle...
Jul 30,2026
Kjemiske prosessorer, vannbehandlingsoperatører og industrianlegg spesifiserer SCH 80 UPVC rør uansett hvor et rørsystem trenger å holde høyere internt trykk og motstå aggressiv kjemisk eksponering uten ...
lær mer
Hva gjør SCH 80 UPVC-rør til et pålitelig valg for høytryk...
Jul 23,2026
SCH 80 UPVC-rør er bygget med en tykkere vegg enn SCH 40-rør med samme utvendige diameter, noe som øker trykket og gjør det til standarden for industrielle linjer som fører korrosive kjemikalier, varme prosessvæske...
lær mer
Hvorfor SCH 80 UPVC-rør er mye brukt i industrielle rørsys...
Jul 16,2026
Veggtykkelse er enkeltspesifikasjonen som skiller et rør som er klassifisert for krevende industritrykk fra et som er ment for lett boligbruk. SCH 80 UPVC rør sitter godt på den kraftige siden av den lin...
lær mer

Legg igjen en beskjed

Streng kvalitetskontroll

ZHEYI Group følger prinsippet om "kvalitet først", tar i bruk internasjonalt avansert utstyr og råvarer av høy kvalitet, kontrollerer strengt alle produksjonsledd og er forpliktet til å tilby rørledningsprodukter med utmerket ytelse og utsøkt utseende.

Selskapet bruker det mest avanserte produksjonsutstyret og materialer av høy kvalitet, inkludert japanske Sekisui og amerikanske Lubrizol. «ZHEYI» kombinerer utsøkt produksjonsteknologi med profesjonell ledelse, og hvert produkt gjennomgår streng kvalitetskontroll – fra produksjon, inspeksjon til endelig levering, noe som sikrer den perfekte kombinasjonen av utseende og funksjon.
Presisjonsytelsestesting

Hos ZHEYI er hvert produkt omhyggelig laget, med fokus på utsøkt estetisk design, men også alltid forpliktet til utmerket egenkvalitet. Streng ytelsestesting sikrer at produktet kan opprettholde stabilitet og holdbarhet selv under tøffe forhold.:

● Tetthetstesting: Måler materialtetthet for å sikre ensartethet og stabilitet i konstruksjoner.
● Vicat mykningstemperaturtest: evaluerer mykningsgraden til materialer under høye temperaturforhold for å sikre produktets evne til å motstå deformasjon i ulike miljøer.
● Ovnstest: simulerer langvarig varmebestandighet og verifiserer produktets evne til å tåle høye temperaturer over lengre tid.
● Hydrostatisk test: Evaluer rørenes styrke under høye trykkforhold for å sikre produktets sikkerhet og pålitelighet.
● Slagtest med fallhammer: Test produktets slagmotstand under transport, installasjon og daglig bruk.

SCH8O/DIN UPVC/CPVC Handle Butterfly Valve Bransjekunnskap

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.

Ikke gå glipp av dette! Ta kontakt med oss for siste nytt!