OPEN FIXED BLADED ROTOR :
Suitable for general range of products and particularly suitable on conveying systems to pressure of 15 psi. Sealing is by packing gland type with standard packing being fluolion or equal.

The prime function of a rotary valve is to regulate the flow from one chamber to another while maintaining a good airlock condition. The product is mainly in dry powder or granular form. In the dust filtration field good  airlocks are essential on cyclone and bag filter applications in order that the manufacturer’s quoted high dust collection efficiencies can be maintained. Airlocks are also important in the pneumatic conveying industry, where product is regulated into a high pressure conveying line while minimizing air leakage.
With ScrewTech there are no double standards, all our standard valves are precision machined for close tolerances and minimal eccentricities. Pressure differentials to 20psi and temperatures to 400° C. We have made specials to handle temperatures covering 1200°C and pressures to 350psi.

ScrewTech  also manufactures RAL as per customers required size & design.

SPECIFICATION : 
 BODIES: Cast Iron, Stainless Steel.
 ROTAR:  Fabricated Mild or Stainless Steel.
 END COVERS:  Cast Iron, Stainless Steel.
 SHAFT:  EN 8 or Stainless Steel.
 BEARINGS: Sealed-for -life-ball type rigged outboard or high  temperature above 250° C.
 DRIVE ARRANGEMENT:  Chain Sprocket or Directly Coupled.
 DRIVE: LHP or as per customers requirement.

OTHER ADDITIONAL FEATURES AS PER CUSTOMERS REQUIREMENT :

Quick Release Rotors
Direct Coupled Drives
Air Purge Glands
Body Vents
Transition piece to suit Round to Square
Drop through Boxes
V.S. Drives
Speed Switches
Flameproof Motors
Shear Plate Deflectors
Electro less Nickel Plating
Hard Chrome Internals etc.
Zero speed switch Arrangement.

Manufacturing capacity :

150 Nos per month of standard RAL & delivery period for  non standard & fabricated RAL will be at least 2-3 months.