Series AJ

The body of the AJ Series valve is available in ductile iron, or aluminum.

  • Simple operation
  • Only one moving part
  • Tight seal around small trapped solids
  • Optional solenoid control for remote use
  • Optional booster relay for rough throttling
  • Suitable for vacuum service
  • Straight through flow
  • Long cycle life

The Series AJ Pinch Valve features a simple, cost-effective design, perfect for dealing with problematic abrasive materials. The valve's split body is designed to allow quick and easy sleeve replacement, and is available in a variety of materials.

Replacement sleeves for the AJ Valve are available in several different types. Double wall sleeves are extra thick for greater wear resistance and longer life. Reduced port sleeves are also available. Food grade sleeves can be purchased for specialty applications. Please contact EVR or your local distributor for more information regarding replacement sleeves.

Diamond Seal Gasket
Whenever the Series AJ Valve Is disassembled for inspection or maintenance, EVR recommends replacing the diamond seal gasket.

When placing your order, please Indicate sleeve material by appending elastomer abbreviation (CR, NR, etc) to the model name. IE: Series AJ-CR

 request quote
inside diameter length FF h width w max work pressure weight cast iron weight aluminum volume
1/2" 3" 3 1/2" 4 1/2" 125 psi 5 Pound 2 Pound .001 ft³
3/4" 4" 3 7/8" 5" 125 psi 7 Pound 4 Pound .002 ft³
1" 5" 4 1/4" 5 3/4" 125 psi 9 Pound 6 Pound .004 ft³ 1"
1 1/4" 6" 4 5/8" 6 1/4" 125 psi 11 Pound 7 Pound .007 ft³
1 1/2" 7" 5" 6 1/2" 125 psi 17 Pound 8 Pound .012 ft³ 2"
2" 9" 7 1/8" 8 1/2" 125 psi 32 Pound 15 Pound .028 ft³ 2"
2 1/2" 10" 7 1/2" 9" 125 psi 40 Pound 20 Pound .054 ft³ 2"
3" 12" 8 1/8" 10" 125 psi 51 Pound 23 Pound .080 ft³ 2"
4" 12 1/2" 10 5/8" 11 3/4" 100 psi 70 Pound 34 Pound .166 ft³ 2"
5" 16 1/2" 11 1/2" 11 3/4" 75 psi 137 Pound 60 Pound .348 ft³ 3"
6" 20" 13 1/2" 15 1/4" 75 psi 180 Pound 88 Pound .529 ft³ 4"
8" 22" 18" 17 1/2" 75 psi 257 Pound 120 Pound 1.032 ft³ 4"
10" 24" 22 3/8" 19 3/8" 50 psi 440 Pound 195 Pound 1.815 ft³ 4"
12" 26" 25" 21 1/2" 50 psi 485 Pound 252 Pound 2.583 ft³ 5"
14" 30" 27 1/2" 24" 50 psi 625 Pound 291 Pound 3.880 ft³ 5"
16" 34" 29 1/2" 25" 50 psi 933 Pound 340 Pound 6.579 ft³ 6"
18" 39" 32 5/8" 28 1/4" 25 psi 1300 Pound 560 Pound 9.404 ft³ 7"
20" 43" 36 1/2" 29" 25 psi 1555 Pound 670 Pound 12.001 ft³ 8"
24" 51" 47" 37 1/2" 25 psi 2525 Pound 790 Pound 20.116 ft³ 8"

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.

Viton™ (FKM)
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.

Hypalon™ (CSM)
Resists strong acids and bases, ozone, weathering, heat andoxidizing chemicals.

Butyl (CIIR)
Good resistance to animal and vegetable fats, strong andoxidizing chemicals, oils, heat and greases.

Neoprene (CR)
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.