| ZSHRT "V" Type Ceramics Ball Valve |
ZSHRT
"V" Type Ceramics Ball Valve
ZSHRT
"V" Type Ceramics Ball Valve
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A. Summary
ZSHVT "V" Type Ceramics Ball Valve is a new product developed by Shanghai Fisher. It is mainly used in alkali, power station, Petrochemical, chemical gas and paper mill to automatic control the production of lime milk, coal powder, coal cinder and powdered particle etc. mediums with corrosive and erosion. Its working temperature is -30～250℃.
B. Structure and Principle of Operation
ZSHVT "V" Type Ceramics Ball Valve is trunnion ball with “V” gap structure. Using the movable metal seat loaded by plate spring, it will not stick to the core or divorce from the core. Even when the core and the seat face are worn, it is reliable in sealing for the elastic compensation of the plate spring, so it is long in serve life. And the material of soft sealing is elastic PTFE which is good in sealing and high in seal class.
The flow route of valve is smooth without any dead angle, so the medium will not deposit in the cavity of the valve.
suitable to the mediums which contain crystals, scales and little particles. The flow route of body, ball and seat are made of ceramics with HRC＞90 which is reliable in sealing and has certain wearability. The drive is stainless steel double piston and gear/gear rack pneumatic actuator with the features of excellent corrosion resistance, big output force and long life. The actuator is composed of cylinder, cylinder cover, piston (gear rack), O-ring, piston bushing, guiding ring, gear (output shaft), bushing and adjusting bolt.
When the air enters the air chamber of pneumatic actuator, the air pressure acts on the piston and produces push force. The gear rack meshes the gear to rotate, then to drive the stem and rotate the ball so that complete open/ close action of the valve.
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| 1、Main Specifications |
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Nominal Size DN |
15 |
20 |
25 |
32 |
40 |
50 |
65 |
80 |
100 |
125 |
150 |
200 |
Flow Coefficient Kv |
9 |
21 |
38 |
72 |
110 |
170 |
275 |
385 |
470 |
855 |
1370 |
1970 |
Nominal Pressure |
PN1.0 ～ 2.5MPa |
Type of Connection |
Flanged ： JB/T 79.1 、 JB/T 79.2 Raised |
Working Temperature |
- 30 ～ 250 ℃ |
Actuator |
Double action |
AT2-DA |
AT3-DA |
AT4-DA |
AT5-DA |
AT6-DA |
AT7-DA |
AT8-DA |
AT9-DA |
Single action |
AT2-SR |
AT3-SR |
AT4-SR |
AT5-SR |
AT6-SR |
AT7-SR |
AT8-SR |
AT9-SR |
Rated Rotate Angle |
90 ° |
Operating Pressure |
0.5～0.6MPa |
Body Material |
WCB 、 CF8 、 CF 8M + ceramics |
Material of Ball, Flow route |
Ceramics HRC ＞ 90 |
Material of seat |
Ceramics HRC ＞ 90 |
Packing |
Special packing, PTFE, flexible graphite |
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2. Main technical performances shown as Table 2.
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| Item |
Fitting Valve positioner |
| Basic Error |
≤±2.0％ |
| Return error |
≤2.0％ |
| Dead Area |
≤0.8％ |
| Leakage level |
GB/T 4213 VI |
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3. Main material and applicable temperature shown as Table 3.
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valve Body |
WCB 、 CF8 、 CF8M+ Ceramic |
Valve Stem |
304 、 316 、Monel、Hastelloy C 、 B |
Ball、Flow route |
Ceramic、HRC ＞ 90 |
Seat |
Ceramic、HRC ＞ 90 |
Sealing Surface |
Ceramic、HRC ＞ 90 |
Parking |
Special parking、PTFE、Flexible graphite |
applicable temperature( ℃ ) |
- 30 ～ 250 ℃ |
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