Electric-Operated Pinch Valve High Performance Electric Pinch Valve for Slurry Large Diameter Pneumatic Pinch Valve China Factory

• Media: Water
• Driving Mode: Electric
• Connection Form: Lug Support
• Structure: Single-Eccentric Sealing
• Work Pressure: Mid-Pressure (2.5mpa< Pn <6.4mpa)
• Working Temperature: Medium Temperature (120°C<T<450°C)
• Model NO.: VS-063DA
• Material of Seal Surface: Soft Sealed
• Valve Body: Casting
• Standard: ISO5211
• Application: Industrial Usage, Water Industrial Usage
• Transport Package: Woodenbox
• Specification: CE, SGS
• Trademark: VESON
• Origin: Shanghai China
• HS Code: 8481804090
• Production Capacity: 50000PC / Y

Product Description

Pinch valves are ideal valves for fluids containing solid particles or contaminants to isolate and regulate pipelines. Because the sleeve is the only part in touch with the medium, it is extremely resistant to wear and corrosion. Even if complicated chemical processes are occurring in the pipeline, the pinch valve is still easy to handle them. Its applications include power plants, sewage treatment plants, mining, and chemical process control.

Specifications

• Body Material: Cast Iron, Cast Steel, Aluminium
• Size: DN25 to DN1000
• Nominal Pressure: PN16
• Valve Type: Straight Through
• Max. Working Pressure: 2.5MPa
• Max. Shutoff Differential Pressure: 0.25MPa
• Full Travel Loading Time(Open to Close): ≤3S
• Effective Diameter: 25 to 1000mm
• Leakage Class: IV. (Refer to standard API598)
• Connection Type: Flange

Sleeve Materials For Pinch Valves

Sleeve Material	Suitable Temperature	Typical Medium	Application
SBRT Styrene Butadiene, Flowrox Blend	'-40°C  to +110°C	Abrasive materials, diluted acid, alkali and chemical applications	Heavy wearing High cycle frequency
EPDM Ethylene Propylene	40°C to +120°C	Concentrated and oxidizing chemicals	Chemical applications - Applicable to 75% of all industrial chemical applications
NBR Nitrile Rubber	-30°C to +100°C	Oils, fats, fuels, hydrocarbon, lubricants	Applications involving oils, fats and hydrocarbon
NR Natural Rubber	'-50°C to +75°C	Abrasive materials, diluted acids, alkali a chemicals	High wear applications
HNBR Hydrogenated Nitrile	-30°C to +160°C	Oils, fats, fuels hydrocarbon, lubricants	High temperature applications
NRF Natural Rubber Foodstuff Quality White inner lining	-40°C to +75°C	Media used in food and other CIP (clean-in-place) processes, alcohol	Foodstuff applications -Fulfils FDA Food and Drug Administration) requirements
NBRF Nitrile Rubber White inner lining	-30°C to +100°C	Vegetable and animal oils and fats	Applications involving fatty foodstuff -Fulfls FDA (Food and Drug Administration) requirements
EPDM/B Ethylene Propylene, Blend	-40°C to +100°C	Green liquor, alkaline and extraneous matter in green liquor processes	Pulp and paper industry's green liquor application
CR Chloroprene Rubber	-40°C  to +100°C	Chemicals, acids, several solvents, aliphatic oils, fats, lubricants	Special-purpose chemical applications -Resilient to ozone and averse weather
FPM Fluorine Rubber (Viton)	-20°C to +120°C	Chemicals, aliphatic oils, aromatic and halogenated hydrocarbon	Special-purpose chemical applications -Resilient to ozone and averse weather
CSM Chloro-sulphone-ethylene(Hypalon@)	-40°C to +100°C	Chemicals, acids, several solvents, aliphatic oils, fats, lubricants	Special-purpose chemical applications -Resilient to ozone and averse weather
IIR Butyl	-40°C to +100°C	Concentrated and acidic chemicals, vegetable oils	Special-purpose chemical applications -Impermeable to gas
PU Polyurethane with PU lining	-10°C to +80°C	Abrasive materials, diluted chemicals, hydrocarbon, oils, lubricants	Abrasive media applications

 

Parts of Manual Pinch Valves

 

No	Part Name	No	Part Name	No	Part Name
1	Protective Cover	8	Sleeve	15	Bolt
2	Retaining Ring	9	Lower Body	16	Upper Pinch Bar
3	Handwheel	10	Nut	17	Side Guide
4	Stem	11	Gasket	18	Block
5	Stem Nut	12	Bracket	19	Lower Pinch Bar
6	Centre Bushing	13	Thrust Bearing	20	Nut
7	Upper Body	14	Upper Guide Bushing	21	Lower Guide Bushing

What are the Primary Factors Influencing Pinch Valve Quality?

Pinch valve is consist of four components: valve body, sleeve, opening and closing mechanism, and driving device.

The sleeve is the key to the quality of the pinch valve, and the major variables influencing its quality are raw materials, rubber synthesis formula, processing technology, sleeve thickness, and wear-resistant anti-corrosion layer uniformity.

 

The following are the 5 reasons for pinch valve quality issues.

1. Insufficient natural raw rubber content and excessive regenerated rubber, which cause rubber loss, significant wear & tear, and short service life.
2. Incorrect rubber composition causes poor wear resistance, and acid & alkali resistance.
3. The sleeve manufacturing method impacts the quality of the valve; the molded rubber sleeve wear layer is prone to uneven thickness, resulting in thin areas that are easily broken. To provide a wear-resistant layer, a pure handmade rubber sleeve is used, and the thickness of the sandwich layer is consistent. The useful life has significantly enhanced.
4. Rust on the valve body, and damage to the opening and closing mechanisms, cause the valve to shut too tightly or not completely close, resulting in unsatisfactory valve usage.
5. Power sources such as pneumatic and electric actuators. Veson valve ld. is an independent research and development manufacturer of pneumatic actuators to satisfy the torque of pinch valves with a CE certificate.