SCH8O/DIN UPVC/CPVC Pneumatic Flange Ball Valve

Among all types of valves, the pneumatic flanged ball valve has the fluid resistance. Even the reduced-bore type has relatively low fluid resistance. The valve body of the pneumatic ball valve is equipped with thrust bearings to reduce friction torque on the stem, ensuring smooth and flexible long-term operation. The valve seat offers sealing performance, made from elastic materials like PTFE, which enhances sealing capability as the medium pressure increases. Additionally, the stem sealing is reliable and resistant to damage. Due to the self-lubricating properties of the materials used and minimal friction loss with the ball, the pneumatic ball valve has a long service life. Springs between the ball, stem, and valve body help discharge static electricity generated during switching, ensuring safe usage.

Déan Teagmháil Linn

Roimhe Seo：SCH8O/DIN UPVC/CPVC Electric Flange Ball Valve
Ar Aghaidh：Comhlaí Tiomáinte Leictreachais UPVC/CPVC

paraiméadar feidhmchlár Caighdeáin Theicniúla

(1) Material: UPVC, CPVC
(2) Size: 1"-4", DN25-DN100, DN32-DN110
(3) Standard: DIN
(4) Connection: flange
(5) Work pressure: 150PSI, 1.0MPa
(6) Operating temperature: UPVC(-10℃-60℃), CPVC(-10℃-90℃)
(7) Minimum air pressure: 45PSI, 0.4MPa
(8) Body color: UPVC (dark gray), CPVC (light gray)

SIZE/NOM.		dn32	dn40	dn50	dn6e	dn75	dn90	dn110	dn140	dn160
		(DN25)	(DN32)	(DN40)	(DN50)	(DN65)	(DNB0)	(DN100)	(DN125)	(DN150)
		(1")	(1-1/4")	(1-1/2")	(2")	(2-1/2")	(3")	(4")	(5")	(6")
D1		115	140	145	165	180	195	220	250	285
D2	DIN	85	100	110	125	145	160	180	210	240
	ANSI	79	89	98	121	140	152	191	216	241
	JIS	42.5	48.5	61	73	90	105	132	158	186
N-Φ	DIN	4-Φ14	4-Φ18	4-Φ18	4-Φ18	4-Φ18	8-Φ18	8-Φ18	8-Φ18	8-Φ18
	ANSI	4-Φ16	4-Φ16	4-Φ16	4-Φ19	4-Φ19	4-Φ19	4-Φ19	8-Φ22	8-Φ22
	JIS	4-Φ19	4-Φ19	4-Φ19	4-Φ19	4-Φ19	8-Φ19	8-Φ19	8-Φ23	8-Φ23
δ		16	18	18	20	20	25	25	27	29
F		-	-	-	-	45	45	49	49	49
M		40	52	52	70	84	84	121	121	121
Q		2×M6	2×M8	2×M8	2×M8	4×M10	4×M10	4×M10	4×M10	4×M10
Torque (N ·M)		4	6	8	12	18	26	35

Actuator working mode double-acting/single-acting (NC normally closed, NO normally open)

Specification	20	25	32	40	50	63	75	90	110	140	160
Specification	1/2"	3/4"	1"	11/4"	11/2"	2"	2 1/2"	3"	4"	5"	6"
Controlling stress	4~8
NAMUR standard air source interface	G 1/4"
Double acting actuator models	TBN032D	TBN032D	TBN032D	TBN052D	TBN052D	TBN63D	TBN75D	TBN83D	TBN92D	TBN105D	TBN125D
Single acting actuator models	TBN052SK	TBN052SK	TBN052SK	TBN063SK	TBN063SK	TBN75SK	TBN83SK	TBN92SK	TBN105SK	TBN125SK	TBN140SK

SCH80 / DIN · PNEUMATIC · FLANGED

UPVC / CPVC Pneumatic Flange Ball Valve

Double-acting · Spring-return · Full port · Flanged ends

The SCH80/DIN UPVC/CPVC Pneumatic Flange Ball Valve is an automated quarter-turn isolation valve engineered for remote on-off and throttling control in corrosive and high-purity fluid systems requiring flanged connections. Manufactured to ASTM SCH80 and DIN standards, this valve integrates a pneumatic actuator with a flanged one-piece or two-piece ball valve body. The actuator is available in double-acting or spring-return configurations, providing fail-safe positioning. The full port design maintains line flow characteristics with minimal pressure drop. The flanged ends comply with DIN PN10/PN16 or ANSI Class 150 drilling patterns, enabling direct integration into existing flanged piping systems without adapters. PTFE seats and seals deliver bubble-tight shut-off. The actuator mounting follows ISO 5211 standards. This valve is widely used in automated process control, chemical dosing, water treatment, and industrial manufacturing systems where flanged connections are required for secure, leak-proof installation.

DN15–DN100 Size range

PN10–PN16 Pressure rating

–20°C to 93°C CPVC range

ISO 5211 Mounting pad

Flanged Connections

DIN PN10/PN16 or ANSI Class 150 flanges provide secure, leak-proof integration into existing piping systems without additional adapters.

Automated Operation

Double-acting or spring-return actuators enable remote control, process automation, and fail-safe positioning without operator intervention.

Bubble-Tight Shut-Off

PTFE seats provide a reliable seal against the chrome-plated or solid CPVC ball, ensuring zero leakage across the full pressure range.

Chemical & Thermal Resistance

UPVC and CPVC bodies resist acids, bases, and salts. CPVC extends service to 93°C for hot corrosive media.

Valve Specifications

Body UPVC · CPVC

Ball Chrome-plated brass · Solid CPVC

Seats PTFE · EPDM (optional)

Flange standard DIN PN10/PN16 · ANSI Class 150

Face-to-face DIN EN 558 Series 1

Standards ASTM D2467 · DIN 8061/8062 · ISO 16139

Actuator Data

Type Double-acting · Spring-return

Supply pressure 4–8 bar

Mounting ISO 5211 · Direct mount

Rotation 90° · Adjustable stroke

Accessories Positioner · Limit switches · Solenoid

Actuator sizing depends on valve torque and supply pressure. Consult factory for selection.

Application Areas

Chemical Automated acid dosing · Reactor feed control · Transfer lines

Semiconductor UPW distribution · Chemical delivery · Wet bench supply

Energy Battery electrolyte · Cooling water · Solar cell etching

Water Wastewater · RO permeate · Desalination · Pump discharge

Pharma DI water loops · CIP systems · Sanitary process lines

Automotive Paint circulation · Parts washing · Coolant systems

Installation Guidelines

Flange connections: Use full-face EPDM or PTFE gaskets. Torque bolts evenly in cross pattern to 15–20 Nm.
Actuator mounting: Ensure ISO 5211 mounting pad alignment. Use correct coupling and bracket.
Air supply: Filtered, lubricated air at 4–8 bar. Use solenoid valve for remote control.
Orientation: Install with actuator in accessible position. For horizontal lines, stem should be vertical.
Testing: Cycle valve manually and pneumatically before placing in service.
Periodic maintenance: Inspect flange bolts and gaskets annually. Cycle valve quarterly to prevent seat sticking.

Critical Restrictions

Temperature: UPVC 60°C max · CPVC 93°C max. Do not exceed seat and gasket ratings.
Air pressure: Do not exceed 8 bar supply pressure. Actuator torque increases with pressure.
Not rated for steam service. Avoid rapid thermal cycling and pressure surges.
Do not use with concentrated nitric acid (>15%) in UPVC bodies.
Flange bolts: Do not overtighten — cracking risk above 22 Nm for DN80 .
UV exposure: Use UV-stabilized material or apply protective coating for outdoor installations.
Actuator storage: Protect from moisture and debris. Store in clean, dry area.

Frequently Asked Questions

What flange standards are available?

The valve is available with DIN PN10/PN16 flanges (per DIN 2501) or ANSI Class 150 flanges. DIN flanges are standard for European and metric piping systems. ANSI flanges are available for North American and imperial systems. Specify the flange standard when ordering.

What is the difference between double-acting and spring-return actuators?

Double-acting actuators require air pressure to both open and close the valve. Spring-return actuators use air to open and a spring to close (or vice versa), providing fail-safe positioning in case of air supply loss. Spring-return is preferred for emergency shutdown applications.

What air pressure is required for operation?

The actuator requires filtered, lubricated air at 4–8 bar. Lower pressures may result in insufficient torque for reliable operation. Higher pressures may exceed actuator torque rating and damage the valve stem. Always verify with the actuator torque chart.

Can this valve be used for throttling control?

Yes, with a positioner and appropriate control signal (4–20 mA or 0–10 V). The pneumatic actuator provides proportional positioning, enabling accurate flow control. However, throttling service may reduce seat life compared to on-off service.

What accessories are recommended?

Common accessories include solenoid valves for remote on-off control, positioners for throttling, limit switches for position feedback, and filter-regulator-lubricator units for air preparation. Accessory selection depends on the application and control system requirements.

Cuideachta

Zheyi Pipeline (Wuhan) Co., Ltd.

ZHEYI Group tá An tSín SCH8O/DIN UPVC/CPVC Pneumatic Flange Ball Valve Le haghaidh tionscail bia/feithicleach/leictreonach soláthraí agus déanta go saincheaptha SCH8O/DIN UPVC/CPVC Pneumatic Flange Ball Valve Le haghaidh tionscail bia/feithicleach/leictreonach monarcha. Bunaíodh muid sa bhliain 2007, ag díriú ar thaighde agus forbairt, monarú, díolacháin agus seirbhísiú píopaí tionsclaíocha CPVC agus UPVC. Tá roinnt deimhniúcháin faighte ag an gcuideachta, lena n-áirítear an ceadúnas táirgthe trealaimh speisialta, ceadúnas sláinteachais táirgí a bhaineann le huisce i gCúige Zhejiang, an deimhniú córais bainistíochta cáilíochta IS09001, an deimhniú córais bainistíochta comhshaoil IS014001, agus an deimhniú córais bainistíochta sláinte agus sábháilteachta ceirde IS045001. Tá níos mó ná 50 ceart maoine intleachtúla neamhspleácha agus cearta allmhairithe agus onnmhairithe féinoibrithe ag an gcuideachta. Chun táirgí éagsúlaithe agus seirbhísí níos fearr a sholáthar, thug an chuideachta isteach teicneolaíocht chun cinn, trealamh uirlisí, agus amhábhair agus córais bhainistíochta uathúla ón nGearmáin agus ó na Stáit Aontaithe. Le blianta beaga anuas, úsáideadh ár dtáirgí go forleathan in iompar píblíne leachtanna aigéadacha agus alcaileacha, uisce ultraíon, uisce óil, uisce íon grád leictreonach, agus fuíolluisce tionsclaíoch sna tionscail cheimiceacha, miotalóireachta, fótavoltacha, cumhachta núicléiche, ceallraí litiam, leathsheoltóirí leictreonacha, bia, leigheas, gluaisteán, cóireáil uisce tionsclaíoch agus tionscail eile. Faoi láthair, tá níos mó ná 30 cuideachta díolacháin bunaithe ag Grúpa ZHEYI ar fud na tíre, agus déantar gach cineál táirgí a onnmhairiú go dtí an Eoraip, Meiriceá, Oirdheisceart na hÁise agus tíortha agus réigiúin eile, agus is fearr leo go mór i measc custaiméirí baile agus eachtrannacha.

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Rialú cáilíochta dian

Cloíonn Grúpa ZHEYI le prionsabal "cáilíocht ar dtús", glacann sé trealamh chun cinn go hidirnáisiúnta agus amhábhair ardchaighdeáin, rialaíonn sé gach nasc táirgthe go docht, agus tá sé tiomanta do tháirgí píblíne a sholáthar a bhfuil feidhmíocht den scoth agus cuma fíorálainn acu.

Úsáideann an comhlacht an trealamh táirgthe is úire agus ábhair ardchaighdeáin, lena n-áirítear Sekisui na Seapáine agus Lubrizol na Stát Aontaithe. Comhcheanglaíonn "ZHEYI" teicneolaíocht táirgthe fíorálainn le bainistíocht ghairmiúil go foirfe, agus déantar rialú cáilíochta dian ar gach táirge - ón táirgeadh, ón gcigireacht go dtí an seachadadh deiridh, rud a chinntíonn an meascán foirfe de chuma agus feidhm.
Tástáil feidhmíochta beachtais

Ag ZHEYI, déantar gach táirge a cheardaíocht go cúramach, ní hamháin ag díriú ar dhearadh aeistéitiúil fíorálainn, ach tiomanta i gcónaí do cháilíocht intreach den scoth. Cinntíonn tástáil fheidhmíochta dhian go bhféadann an táirge cobhsaíocht agus marthanacht a choinneáil fiú faoi dhálaí crua.:

● Tástáil dlúis: Tomhaiseann sé dlús ábhair chun aonfhoirmeacht agus cobhsaíocht struchtúr a chinntiú.
● Tástáil teochta maolaithe Vicat: déanann sé measúnú ar chéim mhaolaithe ábhar faoi choinníollacha ardteochta chun a chinntiú go bhfuil an táirge in ann dífhoirmiú a sheasamh i dtimpeallachtaí éagsúla.
● Tástáil oighinn: insamhlaíonn sé friotaíocht teasa fadtéarmach agus fíoraíonn sé cumas an táirge teochtaí arda a sheasamh ar feadh i bhfad.
● Tástáil hidreastatach: Déan measúnú ar neart na bpíopaí faoi choinníollacha ardbhrú chun sábháilteacht agus iontaofacht an táirge a chinntiú.
● Tástáil tionchair casúir titime: Déan tástáil ar fhriotaíocht tionchair an táirge le linn iompair, suiteála agus úsáide laethúla.

SCH8O/DIN UPVC/CPVC Pneumatic Flange Ball Valve Eolas tionscail

Common fault diagnosis and maintenance practices of pneumatic flange ball valves (multi-industry application scenarios)

Pneumatic flange ball valves are widely used in safe drinking water, metallurgy, photovoltaics, nuclear power, electronic semiconductors, medicine, industrial water treatment, industrial wastewater and other fields due to their fast opening and closing, good sealing, and high pressure resistance. However, in long-term operation, failures may occur due to medium characteristics, working conditions or improper operation. The following are common problems and maintenance suggestions, which are analyzed in combination with different industry scenarios:

1. Common fault diagnosis and solutions
Valve internal or external leakage
Possible causes: wear of the sealing ring (such as long-term high temperature aging of PTFE), damage to the valve seat, and loose flange bolts.

Industry application differences:
Medicine/electronic semiconductor: High-purity media require zero leakage, and the valve seat material needs to be checked regularly (such as PPL reinforced polytetrafluoroethylene).
Nuclear power/industrial wastewater: Corrosive media (such as acid and alkali) are easy to corrode the valve body, and Hastelloy or fluorine-lined valves should be used.

Pneumatic actuators are slow or fail
Possible reasons: insufficient air source pressure, solenoid valve failure, water accumulation in the cylinder (compressed air is not dry).

Industry application differences:
Photovoltaic/metallurgy: High temperature environment causes more condensed water in the air source pipeline, and an air dryer needs to be installed.
Safe drinking water: Humid environment may cause actuator corrosion, and IP67 protection level is recommended.

Valve stuck or unable to switch
Possible reasons: medium crystallization (such as salt in industrial wastewater), impurity accumulation (such as silt in water treatment), long-term lack of maintenance.

Industry application differences:
Industrial water treatment: Rinse the valve cavity regularly to prevent particulate matter from blocking.
Electronic semiconductors: Metal ion contamination should be avoided in ultrapure water systems, and fully lined valves are recommended.

2. Targeted maintenance practices
Regular inspection and cleaning
Safe drinking water/pharmaceutical industry: Disassemble and inspect seals every quarter to ensure that there is no biofilm or chemical residue.
Photovoltaic/semiconductor: Use high-purity nitrogen to purge the gas line to prevent particle contamination.

Lubrication and sealing management
Metallurgy/nuclear power: Use high-temperature resistant grease (such as silicone-based grease) under high-temperature conditions to avoid dry friction.
Industrial wastewater: In corrosive media environments, it is recommended to use bellows graphite packing for double protection of valve stem seals.

Pneumatic system maintenance
Common to all industries:
Check the gas source triplex (filter, pressure reducing valve, oil mist collector) to ensure stable pressure (usually 0.4~0.6MPa).
Solenoid valves and limit switches must be dust-proof and moisture-proof, especially for outdoor environments of photovoltaic plants.

3. Special precautions for the industry
Nuclear power: Must comply with ASME III or RCC-M standards, and the valve body material must be radiation-resistant (such as 316L ultra-low carbon stainless steel).
Electronic semiconductors: Electrolytic polishing (Ra≤0.4μm) of the surface of the valve in contact with the medium to prevent particles from falling off.
Medicine: Under sterilization (SIP/CIP) conditions, the valve must withstand high-temperature steam cycles above 120°C.

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