Pneumatic soft seal butterfly valve
Pneumatic soft seal butterfly valve
Nominal diameter: DN50 ~ 600mm
Design and manufacture: GB12237-89, API608, API 6D, JPI 7S-48, BS5351, DIN3357
Flange size: JB / T74-90, GB9112-9131, HGJ44-76, SH3406, ANSI B16.5, JIS B2212 ~ 2214, DIN2543
Ambient temperature: -30 ~ +70 ℃
【D671X Pneumatic Soft-Seal Butterfly Valve】 Product Description
Pneumatic soft-seal butterfly valve consists of pneumatic actuator, rubber-sealed butterfly valve and carbon steel or stainless steel valve plate and stem. Suitable for temperature ≤120 ℃, it is the preferred conventional butterfly valve for pipeline. It has the advantages of simple structure, small flow resistance coefficient, straight flow characteristics and no clutter. Can be used to cut off the media, such as equipped with valve positioner can be used to regulate the flow of media, such as flammable and explosive parts need to use explosion-proof accessories (explosion-proof solenoid valve, explosion-proof limit switch, explosion-proof locator) And with different materials of the ring can be adapted to different media, working conditions, suitable for water supply and drainage, sewage, food, heating, gas, shipbuilding, hydropower, metallurgy, energy systems and textile industries, especially for the amount of leakage Requirements of higher, corrosive occasions, for regulating flow and interception media.
【D671X pneumatic soft sealing butterfly valve】 Features
1, compact and lightweight, easy disassembly and maintenance, and can be installed in any location.
2, the structure is simple, compact, small operating torque, 90 ° turn quickly open.
3, the flow characteristics of a straight line, adjust the performance.
4, butterfly plate and valve rod connection pinless structure, to overcome the possible internal leakage point.
5, the use of spherical disc butterfly shape, improve the sealing performance and extend the service life of the valve, open more than 50,000 times the pressure remains zero leakage.
6, seals can be replaced, and sealed to achieve two-way seal.
7, butterfly board can be sprayed coating according to user requirements, such as nylon or PTFE.
8, pneumatic soft seal butterfly valve can be designed to connect flange and the folder.
【D671X pneumatic soft seal butterfly valve】 Technical parameters
1. The main design standards
Design and manufacture | GB12237-89, API608, API 6D, JPI 7S-48, BS5351, DIN3357 |
Flange size | JB / T74 ~ 90, GB9112 ~ 9131, HGJ44 ~ 76, SH3406, ANSI B16.5, JIS B2212 ~ 2214, DIN2543 |
Structure length | GB12221-89, ANSI B16.10, JIS B2002, NF E29-305, DIN3202 |
Inspection and testing | JB / T 9092, API 598, GB / T13927 |
2. The main parts material standards
Serial number | Part Name | Material | ||
Z | C | D | ||
1 | Seat | rubber | rubber | rubber |
2 | Cone pin | 45 # steel | 45 # steel | stainless steel |
3 | Butterfly plate | Gray cast iron hard chrome | Carbon steel or stainless steel | stainless steel |
4 | Body | grey cast iron | Carbon steel | stainless steel |
5 | Stud | 35 steel | Carbon steel | stainless steel |
6 | Valve stem | 45 # steel | stainless steel | stainless steel |
7 | Key | 45 # steel | 45 # steel | stainless steel |
8 | bushing | Copper-based powder metallurgy | Copper-based powder metallurgy | Copper-based powder metallurgy |
9 | O-ring | rubber | rubber | rubber |
10 | Pneumatic device | |||
11 | Location indicator | plastic | plastic | plastic |
3. The execution parameters
Actuator model | AT, AW series of single-and double-acting pneumatic actuator |
Supply pressure | 0.4 ~ 0.7MPa |
Air source interface | G1 / 4 ", G1 / 8", G3 / 8 ", G1 / 2" |
Ambient temperature | -30 ~ +70 ℃ |
The role of form | Single-acting actuator: Off Gas formula (B) - loss of gas when the valve opening (FO); open air (K) - loss of gas when the valve closed position (FC) |
Can be equipped with accessories | Positioner, Solenoid valve, Air filter pressure reducer, Relief valve, Stroke switch, Valve position transmitter, Hand wheel mechanism, etc. |
【D671X pneumatic soft seal butterfly valve】 Dimensions
DN | L | H | D | D1 | zd | A |
50 | 42 | 80 | 52.9 | 120 | 4-19 | 160 |
65 | 44.7 | 89 | 64.5 | 136.2 | 4-19 | 190 |
80 | 45.2 | 95 | 78.8 | 160 | 4-19 | 190 |
100 | 52.1 | 114 | 104 | 185 | 4-19 | 206 |
125 | 54.4 | 127 | 123.3 | 215 | 4-19 | 260 |
150 | 55.8 | 139 | 155.6 | 238 | 4-23 | 286 |
200 | 60.6 | 175 | 202.5 | 295 | 4-23 | 340 |
250 | 65.6 | 203 | 250.5 | 357 | 4-23 | 412 |
300 | 76.9 | 242 | 301.6 | 407 | 4-23 | 480 |
350 | 76.5 | 267 | 333.3 | 467 | 4-23 | 480 |
400 | 86.5 | 309 | 389.6 | 515 | 4-28 | 538 |
450 | 105.6 | 328 | 440.5 | 565 | 4-28 | 568 |
500 | 131.8 | 361 | 491.5 | 620 | 4-M24 | 660 |
600 | 152 | 459 | 592.5 | 725 | 4-M27 | 740 |
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