Fluorine lined plastic pneumatic bellows control valve
manufacturer: Shanghai MeiYan Yi Pump & Valve Co., Ltd.
Eml: sales@1bengfa.com
Tel: +86 (21) 5640 2009
Mob: +86 138 1691 3072（WeChat Same Account）
product drawing
Fluorine lined plastic pneumatic bellows control valves
features
ZJHF fluorine plastic pneumatic bellows regulator is a anti-corrosion direct single seat regulator, the body inside and valve internal components contact with fluid are lined F46 anti-corrosion materials, valve installs bellow components, valve core top sealing contacts with PTFE bellows, lower end of bellows connects with the body, upper bonnet, supporting use bolts, nuts sealing, so the bellows make the medium isolate from outside corrosion, ensure core moving up and down. Shanghai Yihuan produced fluorine lined plastic pneumatic bellows regulator can almost chemical corrosion resistance, good sealing performance, once the bellows are damaged, regulator packing can be the second protective sealing, so it is widely used to adjust, cut off, control of poisonous, strong corrosion applicable, volatile, easy penetration medium.
features structures
Fluorine lined plastic pneumatic bellows control valve constructral diagram
technical parameters and performance indicators
body：WCB、ZG230-450 lined F46（FEP）, stainless steel lined 46（FEP）
seat, core：F46, Hamiltonian alloy, A monel alloy
bellows：F4（PTFE）, Hamiltonian alloy
packing: F4, graphite
diaphragm cover: SPHC steel plate
spring：60Si2Mn
detail technical parameters
| DN mm | G3/4〞 | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | |||||||
| seat diameter mm | 3 | 4 | 5 | 6 | 7 | 8 | 10 | 15 | 20 | 26 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 |
| rated flow coefficient Kv | 0.08 | 0.12 | 0.2 | 0.32 | 0.5 | 0.8 | 1.2 | 3.2 | 5 | 8 | 12 | 20 | 32 | 50 | 80 | 120 | 200 | 280 | 450 |
| PN Mpa | 1.0 1.6 | ||||||||||||||||||
| flow characteristic | linear | linear: equal percentage | |||||||||||||||||
| effective area cm2 | 280 | 400 | 630 | 1000 | |||||||||||||||
| stroke mm | 10 | 16 | 25 | 40 | 60 | ||||||||||||||
| spring scope KP | 20～100、40～200、80～240, section width: 20～60、60～100 | ||||||||||||||||||
| adjustable ratio | R=30:1 | ||||||||||||||||||
| medium temperature ℃ | －20～＋150 | ||||||||||||||||||
| intrinsic error % | with locator | ±2.0 | without locator | ±10 | |||||||||||||||
| back differential % | ±1.5 | ±8 | |||||||||||||||||
| dead zone % | ±1.5 | ±6 | |||||||||||||||||
| start and terminal error % | ±2.0 | ±10 | |||||||||||||||||
| rated stroke error % | ±2.5 | ||||||||||||||||||
| allowed leakage L/h | 10-5×rated volume | ||||||||||||||||||
external dimensions （unit：mm）
| DN | G3/4〞 | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 |
| L | 120 | 180 | 185 | 200 | 220 | 250 | 275 | 300 | 350 | 425 | 460 | 560 |
| H1 | 453 | 460 | 517 | 529 | 594 | 624 | 824 | 834 | 20848 | 902 | 920 | 1020 |
| H2 | 50 | 65 | 70 | 80 | 79 | 85 | 100 | 114 | 162 | 200 | 240 | 300 |
| A | 282 | 360 | 470 | |||||||||
