The Jindex Innovations

• Patented In-Line Sleeve replacement
• Sleeve Technology
  • Reduced bore sleeves
• Rubber Sleeves
• Polyurethane Sleeves
• ReoThane extreme duty sleeves

With traditional Pinch Valves, changeover of worn sleeves can be a long and complicated process. Due to the weight of the pinch valve and the mechanism of sleeve retention, traditional pinch valves require removal of the valve from the pipe and partial or complete dismantling to replace the sleeve. For valves above 5 inch (125mm) size this process typically requires hoisting equipment and extra personnel, with hours of process downtime required........
Enter the new generation Jindex Pinch Valve.

Jindex Pinch Valve sleeve replacement is child's play!

The patented in-line sleeve replacement system reduces changeover time from hours to a matter of minutes with no requirement for extra personnel or lifting equipment. This translates directly to the bottom line by increasing plant availability.

Sleeve Technology

The Jindex Pinch Valve sleeve design represents the latest in elastomer technology, with fully moulded reinforced rubber polyurethane and a new polyurethane material, ReoThane, which combines flex-life and abrasion resistance.

Reduced Bore Sleeves

Jindex sleeves are available in full bore and reduced bore configurations. This allows optimized valve flow control and scope for future flow increases.

A simple increase or decrease in sleeve bore fitted to the original valve can often eliminate the need for a totally new valve.

We have a wide range of sleeve moulds for each valve size with varying wall thicknesses and bore sizes. The wall thickness is independent of bore size to optimize wear resistance.

These are available in most sleeve materials.

Photo shows two sleeves for a 250mm (10") valve, one with a 250mm (10") bore and the other with a 150mm (6") bore.

Rubber Sleeves

Fully moulded synthetic fibre reinforced sleeves are available in various rubber grades including natural, butyl, nitrile, and EPDM. The use of state of the art reinforcing has left more room for thicker wear surfaces which results in improved sleeve life compared to other pinch valve sleeves.

Opening tags are available. These may be required for valves which are normally closed for extended periods. at low line pressures.

Polyurethane Sleeves

The choice of polyurethane sleeves allows greater scope for achieving maximum sleeve wear life and resulting lower plant maintenance costs. Extensive development work over a number of years has resulted in the Jindex Pinch Valve polyurethane sleeve.

Polyurethane sleeves have successfully overcome common "trouble spots" for rubber sleeves, which include…

• angular particle slurries such as coal or the presence of sharp debris which tend to slice rubber
• excessive rubber sleeve "flutter" with high pressure drop across the valve
• rubber "set" with valves left in a partially or fully closed position for extended periods

ReoThane

ReoThane has been developed primarily for extreme wear or corrosion applications.

ReoThane consists of a reinforced rubber-polyurethane composite resulting from a multi-step manufacturing process.

The result is a sleeve which may offer the following specific benefits for your application:

• The superior cut/tear and sliding abrasion resistance of ReoThane outlasts traditional rubber materials handling hose in many difficult applications
• The resilient rubber backing provides a 'live' surface which is designed to produce greater impact and abrasion resistance than lined rigid pipe
• Various ReoThane formulations can be supplied to match chemical, temperature and abrasion conditions

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