Lining, seat | Applicable temperature(℃) | Applicable medium |
PTFE(F4) | ≤180 | In addition to molten alkali metal, elemental fluorine, a variety of concentrations of acid, alkali, salt, aqua regia, organic acid and other strong corrosive media |
PCTFE(F3) | ≤120 | |
FEP(F46) | ≤150 | |
PFA(fusibleF4) | ≤180 | |
PVDF(F2) | ≤100 | |
RPTFE(RF4) | ≤180 |
number | Part name | Gray cast iron | Cast steel | Stainless acid resistant cast steel | Ultra-low carbon stainless acid resistant cast steel | ||
Z | C | P | R | PL | RL | ||
1 | Body/bonnet | HT250 | WCB | CF8 | CF8M | CF3 | CF3M |
2 | Ball/stem | 25 | 2Cr13 | 1Cr18Ni9 | 1Cr18Ni12Mo2Ti | 00Cr18Ni10 | 00Cr17Ni14Mo2 |
3 | Lining/seat | PCTEF(F3),FEP(F46),PFA(soluble F4),PP,PO | |||||
4 | Packing gland | WCB | CF8 | CF8M | CF3 | CF3M | |
5 | packing | PTFE(F4) | PTFE(F4) | PTFE(F4) | |||
6 | Knuckle bolt | 35 | 1Cr17Ni2 | 1Cr17Ni2 | |||
7 | Stem nut | ZCuAl10Fe3 | ZCuAl10Fe3 | ZCuAl10Fe3 | |||
8 | Fastening bolt | 35 | 1Cr17Ni2 | 1Cr18Ni9Ti | |||
9 | nut | 45 | 0Cr18Ni9 | 0Cr18Ni9 | |||
10 | handle | WCB | WCB | WCB |
Design standard | HG/T 3704,GB/T 12235 | BS S160 | ||
Structural length | HG/T 3704,GB/T 12221 | BS S160 | ||
Flange size | HG/T 20592,GB/T 9119 | ASME B16.5,JIS B2220 | ||
Inspection and test | GB/T 13927,JB/T 9092 | API 598 | ||
Nominal pressure(MPa) | 1.0 | 1.6 | 150Lb | |
Experimental pressure (MPa) | Shell pressure test | 1.5 | 1.5 | 1.5 |
High pressure seal | 1.1 | 1.1 | 1.1 | |
Low pressure seal | 0.6 | 0.6 | 0.6 | |
Applicable temperature(℃) | PFA:-30~200 FEP:-30~150 GXPO:-10~80 | |||
Applicable medium | Hydrochloric acid, nitric acid, hydrofluoric acid, liquid chlorine, sulfuric acid, aqua regia and other strong corrosive media |
Part name | Cast steel | Acid resistant stainless steel | |||
C | P | R | PL | RL | |
Body/bonnet | WCB | CF8 | CF8M | CF3 | CF3M |
Positioning clamp/packing gland | WCB | CF8 | CF8M | CF3 | CF3M |
Valve stem | 2Cr13 Ss304 SS410 | ||||
Lining material/seat | FEP、PFA、GXPO | ||||
Stem nut | brass | ||||
Fastening bolt | A193 B7 | A320 B8 | A193 B8M | ||
nut | A194 2H | A194 8 | A194 8M |
DN | L | D | D1 | D2 | f | b | N-d | D0 | H1 | H2 | W(Kg) |
15 | 90 | 95 | 65 | 43 | 3 | 14 | 4-14 | 100 | 170 | 185 | 7 |
20 | 95 | 105 | 75 | 50 | 3 | 14 | 4-14 | 100 | 200 | 220 | 8 |
25 | 100 | 115 | 85 | 60 | 3 | 16 | 4-14 | 120 | 205 | 230 | 9 |
32 | 105 | 135 | 100 | 68 | 3 | 18 | 4-18 | 140 | 230 | 260 | 10 |
40 | 115 | 145 | 110 | 80 | 3 | 18 | 4-18 | 160 | 255 | 292 | 14 |
50 | 125 | 160 | 125 | 100 | 3 | 20 | 4-18 | 180 | 270 | 315 | 17 |
65 | 145 | 180 | 145 | 115 | 3.5 | 20 | 4-18 | 200 | 335 | 390 | 25 |
80 | 155 | 195 | 160 | 130 | 3.5 | 22 | 8-18 | 240 | 395 | 465 | 33 |
100 | 175 | 215 | 180 | 150 | 4 | 24 | 8-18 | 280 | 420 | 506 | 45 |
125 | 200 | 245 | 210 | 180 | 4 | 26 | 8-18 | 320 | 490 | 600 | 62 |
150 | 225 | 280 | 240 | 210 | 4 | 28 | 8-23 | 360 | 520 | 670 | 91 |
200 | 275 | 335 | 295 | 260 | 5 | 32 | 12-18 | 400 | 590 | 740 | 140 |
250 | 325 | 405 | 355 | 319 | 5 | 36 | 12-26 | 450 | 660 | 840 | 220 |
300 | 375 | 460 | 410 | 370 | 6 | 40 | 12-26 | 500 | 710 | 900 | 305 |