Mining – Waste and Water Treatment – Food Processing – Mineral Processing
The body of the AJ Series valve is available in ductile iron, or aluminum.
Series AJ Pinch Valves provide an effective means of flow control for hard-to-handle media such as slurries, sludges, and dry solids.
A flexible elastomer sleeve is contained in a cast metal housing. The annular cavity between the sleeve and the housing acts as the valve’s actuator.
As pressurized air or water enters the housing, the sleeve is pinched shut. Venting the pressure allows the valve to resume full normal flow.
Ethylene Propylene Rubber (EPDM)
Most effective for applications involving water, steam or dilutedacids.
Resists solvents, halogenated hydrocarbons, oxygen, weather,ozone, oils and chemicals.
Buna N (NBR)
Resistant to kerosene, moderate chemicals, fats, oils, grease andmany hydrocarbons.
Natural Rubber (NR)
Good abrasion resistance, tensile strength and resiliency. Alsosuitable when dealing with organic acids, alcohols, ketones andmost moderate chemicals.
Resists strong acids and bases, ozone, weathering, heat andoxidizing chemicals.
Good resistance to animal and vegetable fats, strong andoxidizing chemicals, oils, heat and greases.
Generally resistant to oil and grease, moderate chemicals, fats,many hydrocarbons and ozone. Resistant to barnacle growth.
EVR AJ pinch valves work on differential pressure to close the valve tight. Please consult the factory. If possible, throttle the control air to give just enough pressure to operate the valve. The lower the pressure, the longer the sleeve will last.
Please note that different elastomer, sleeve, and application combinations may require higher differential pressures.
All EVR products are guaranteed for one full year against defects resulting from faulty workmanship or materials. If any such product is found to be defective by reason of faulty workmanship or materials, upon written notice and return of the product, the defective product will be replaced by us free of charge, including the shipping charges for the replacement product. Claims for labour costs and other expenses required to replace such defective product, or to repair damage resulting from the use thereof will not be allowed by us. Our liability is limited to the price paid for the defective product. EVR Products shall not be bound by any warranty other than the above set forth unless such warranty shall be in writing. This literature is published in good faith and is believed to be reliable, however, EVR Products does not represent and/or warrant in any manner the above information and suggestions contained in this brochure. Data presented is the result of laboratory tests and field experience.