SKU: Spring loaded low lift type safety valve with a wrench (A47Y) 

 Description: 

 The valve for temperature ≤ 350 ℃ steam, air and other media equipment or piping. As the overpressure protection device. Standard flange connection according to JB/T-94 series 1. 

 This safety valve are used for the equipment and pipeline of the steam, air etc medium what the working temperature are less than 350 ℃. Take for extra pressure protection devices.Flange connecting dimensions of comply with Standard series one of JB/T-94. 

 NO. 
 Part Name Name of part 
 Materials 

 1 
 Valve Body 
 WCB 

 2 
 Seat Nozzle 
 ZG2Cr13 

 3 
 Adjustment ring Adjusting ring 
 ZG2Cr13 

 4 
 Disc valve 
 2Cr13 

 5 
 Bushing Guide sleeve 
 2Cr13 

 6 
 Bonnet Bonnet 
 ZG230-450 

 7 
 Spring Spring 
 50CrVA 

 8 
 Stem Stem 
 2Cr13 

 9 
 Lever wrench 
 ZG200-400 

 10 
 Adjustment screw Adjusting bolt 
 45 

 11 
 Guard Cap 
 ZG200-400 


 Sealing surface material Sealing surface of material 
 "H" type surfacing D507, "Y" Co-based alloy cladding 
 "H" type Depositing D507, "Y" type Depositing stellite 




 Overall and connection dimensions Dimensions (mm) 

 Type 
 (DN) 
 do 
 D 
 K 
 g 
 g1 
 b 
 f 
 f1 
 Z-d 
 DN ' 
 D1 
 k1 
 g2 
 g1 
 b1 
 f ' 
 f1 ' 
 Z1-d1 
 L 
 L1 
 H 

 A47H-16C 
 20 
 15 
 105 
 75 

 55 
 16 
 2 

 4-14 
 20 
 105 
 75 
 55 

 16 
 2 

 4-14 
 100 
 85 
 270 

 25 
 20 
 115 
 85 

 65 
 16 
 2 

 4-14 
 25 
 115 
 85 
 65 

 16 
 2 

 4-14 
 100 
 85 
 270 

 32 
 25 
 140 
 100 

 78 
 18 
 2 

 4-18 
 32 
 140 
 100 
 78 

 18 
 2 

 4-18 
 115 
 100 
 312 

 40 
 32 
 150 
 110 

 85 
 18 
 3 

 4-18 
 40 
 150 
 110 
 85 

 18 
 3 

 4-18 
 120 
 110 
 320 

 50 
 40 
 165 
 125 

 100 
 20 
 3 

 4-18 
 50 
 165 
 125 
 100 

 20 
 3 

 4-18 
 135 
 120 
 390 

 65 
 50 
 185 
 145 

 120 
 20 
 3 

 4-18 
 65 
 185 
 145 
 120 

 20 
 3 

 4-18 
 140 
 130 
 395 

 80 
 65 
 200 
 160 

 135 
 20 
 3 

 8-18 
 80 
 200 
 160 
 135 

 20 
 3 

 8-18 
 160 
 135 
 400 

 100 
 80 
 220 
 180 

 155 
 22 
 3 

 8-18 
 100 
 220 
 180 
 155 

 22 
 3 

 8-18 
 170 
 160 
 600 

 125 
 100 
 250 
 210 

 185 
 22 
 3 

 8-18 
 125 
 250 
 210 
 185 

 22 
 3 

 8-18 
 190 
 190 
 620 

 150 
 125 
 285 
 240 

 210 
 24 
 3 

 8-23 
 150 
 285 
 240 
 210 

 24 
 3 

 8-23 
 205 
 195 
 625 

 200 
 150 
 340 
 295 

 265 
 26 
 3 

 12-23 
 200 
 340 
 295 
 265 

 26 
 3 

 12-23 
 240 
 230 
 798 

 250 
 200 
 405 
 355 

 320 
 30 
 3 

 12-26 
 250 
 405 
 355 
 320 

 30 
 3 

 12-26 
 350 
 320 
 981 

 300 
 250 
 460 
 410 

 375 
 30 
 4 

 12-26 
 300 
 460 
 410 
 375 



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