AQ high pressure air compressor safety valve cnanquanfa 

 Product use 
 AQ high-pressure air compressor safety valve for air compressor and other equipment as the ultimate security protection for overpressure protection device, the type of safety valve spring load, threaded connections. 

 【Features】 
 1, the set pressure deviations up to ± 3% 
 3, the opening and closing pressure of ≤ 15% 
 4, selection of high quality spring steel to ensure that the springs of life and stability 
 5, the planar structure of the valve disc and seat is easy to repair and re-processing 

 [Executive standard] 
 Design specification: GB / T 12243 
 The length of the structure: GB / T 12221 
 Test and inspection: GB / T 12242 
 Product ID: GB / T 12220 
 Supplier specifications: JB / T 7928 

 Product Type 
 AQ-20 

 [Tuning the pressure rating] 
 Nominal pressure (MPa) set pressure level 
 1.6 0.06 0.1 0.1 0.16 0.16 ~ 0.25 0.4 ~ 0.6 0.6 ~ 0.8 0.8 ~ 1.0 1.0 ~ 1.3 1.3 ~ 1.6 
 2.5 1.3 ~ 1.6 1.6 ~ 2.0 2.0 ~ 2.5 
 4.0 1.3 ~ 1.6 1.6 ~ 2.0 2.0 ~ 2.5 2.5 ~ 3.2 3.2 ~ 4.0 


 [Performance parameters] 
 NO. Part name AQ-20 materials 
 1 body 2Cr13 
 2 seat 2Cr13 
 3 valve flap 2Cr13 
 4 stem 2Cr13 
 5 valve cover ZG230-450 
 6 bonnet ZG230-450 
 Sealing surface material surfacing Co-based cemented carbide 


 The main shape of the connection size] 
 Nominal diameter size 
 DN (mm) do GD D1 Z-? D L ≈ H 
 20 17 G1 "62 44 4-17 25 220 
 25 20 M36 × 2 70 50 4-20 28 226 


 [Series] 
 Air compressor safety valve http://www.cnanquanfa.com/kongyaji/ of 


 Spring Safety Valve Factory