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Materials for main parts

 

No. Name of part A72W-P                            Materials A72W-R                    Materials Working temperature Suitable  medium
1 Body 0Cr18Ni9Ti 0Cr18Ni12Mo2Ti ≤200℃ A72W-10P            suit for Nitric acid etc. medium
2 Seat 0Cr18Ni9Ti 0Cr18Ni12Mo2Ti
3 Adjusting ring 0Cr18Ni9Ti 0Cr18Ni12Mo2Ti
4 Bonnet 0Cr18Ni9Ti 0Cr18Ni12Mo2Ti A72W-10R           suit for Acetic acid etc. medium
5 Stem 0Cr18Ni9Ti 0Cr18Ni12Mo2Ti
6 Spring 50CrVA 50CrVA Coated Teflon

 

Dimensions(mm)

(DN) D D1 D2 Z-Φd b f1 H
20 95 65 45 4-14 14 2 110
25 105 75 55 4-14 16 2 130
32 115 85 65 4-14 16 2 150
40 140 100 78 4-18 18 2 180
50 150 110 85 4-18 18 3 200
65 165 125 100 4-18 20 3 221
80 200 160 135 4-18 22 3 245
100 220 180 155 8-18 22 3 253
125 250 210 185 8-18 24 3 280
150 285 240 210 8-23 24 3 329
200 340 295 265 8-23 26 3 377
250 395 350 320 12-23 28 3 440
A72W

Vacuum breaker, inbreath air