QUALITY CONTROL
 
     
 

The key factor to assessment is Quality Documentation & adherence to specifications imposed by various Standards / customer requirements. Which Transmits attached importance to field Performance of Manufactured product. So rigorous testing for certifications are issued in following manner.

 
     
  Certification format for Timer Board & Electronic Products :  
 
 
 
 
     
 
 
     
  FORMAT FOR ROTARY AIR LOCKS  
     
  Note: Following Certificates will be furnished with Each Rotary Valve.  
   
 
SrNo Test Description Test Limit/Value Remarks
  MATERIAL TESTS      
1 *O.H.N.S. material & Heat treatment Certificate .      
2 *O.H.N.S. Tips Hard chrome plating.      
3 Low Alloy Cast Iron Certificate      
4 Gun Metal Bushing      
5 High Tensile Hardware (Nut & Bolts) Certificate      
  METALLURGICAL TESTS      
6 Gas Nitriding Certificate      
7 *EN 19 Shaft Hardening Certificate      
8 Graphite Ring Certificate (type test) (For Glanding Applications)      
9 *O.H.N.S. Blades hardness      
  MECHANICAL TESTS      
10 Dimensions as per drawings      
11 Side flanges/Bearing/Rotor assembly      
12 Gear Motor Mounting/Chain Sprocket Assembly      
  ASSEMBLY STATIC & RUN TEST      
13 Bearing NTN (JAPAN) (type test)      
14 Noise Certificate (db Level) [For Running Assembly]      
15 Radial & Axial Gap & Clearance Certificate      
16 Purge air sealing & Graphite glanding Test      
17 Powder coating Visual      
18 Vent venturi operation      
  ELECTRICAL TESTS      
19 Electrical motor current