Описание
Пневматический дисковый затвор с мягким седлом
This pneumatic soft-seated butterfly valve consists of a rubber-seated valve
body with a carbon steel or stainless steel butterfly disc and valve shaft. It
is designed for flow regulation and shut-off in water, wastewater, air, gas,
steam, oil and mildly corrosive fluid pipelines.
The valve is widely used in food processing, pharmaceutical, chemical,
petroleum, power generation, textile, paper and general industrial systems.
Its compact construction, quick quarter-turn operation and replaceable sealing
components provide reliable bidirectional sealing and convenient maintenance.
Основные особенности
- Compact and lightweight butterfly valve design.
- Fast opening and closing with low operating torque.
- Suitable for installation in any position.
- Replaceable sealing components for easy maintenance.
- Reliable bidirectional sealing with zero visible leakage under suitable conditions.
- Ageing-resistant and corrosion-resistant sealing materials.
- Available with double-acting or spring-return pneumatic actuators.
- Optional manual override, solenoid valve, limit switch and positioner.
- ISO 5211 mounting interface for convenient actuator installation and replacement.
Применимые стандарты
| Пункт | Стандартный |
|---|
| Дизайн | GB/T 12238-1989 |
| Размеры фланца | GB/T 9113.1-2000, GB/T 9115.1-2000 and JB78 |
| Размеры при непосредственном контакте | GB/T 12221-1989 |
| Pressure Testing | GB/T 13927-1992 and JB/T 9092-1999 |
Технические характеристики
| Пункт | Технические характеристики |
|---|
| Номинальный размер | от DN50 до DN2000 |
| Номинальное давление | PN0.6, PN1.0 and PN1.6 MPa |
| Shell Test Pressure | 0.90, 1.50 and 2.40 MPa |
| Water Seal Test Pressure | 0.66, 1.10 and 1.76 MPa |
| Air Seal Test Pressure | 0.60 MPa |
| Подходящие носители | Air, water, wastewater, steam, gas, oil products and mildly corrosive fluids |
| Эксплуатация | Manual, worm gear, pneumatic, electric or hydraulic |
| Пневматический привод | Double-acting or spring-return actuator |
Основные материалы
| Часть | Материал |
|---|
| Корпус клапана | Ductile iron, cast steel, alloy steel or stainless steel |
| Диск «Бабочка» | Gray cast iron, ductile iron, cast steel, stainless steel or special materials |
| Вал клапана | 2Cr13 stainless steel or stainless steel |
| Сиденье | Nitrile rubber, EPDM, PTFE, fluororubber or other elastomers |
| Упаковка | O-ring or flexible graphite |
Sealing Materials and Temperature Range
| Материал | Abbreviation | Code | Maximum Temperature | Working Temperature |
|---|
| Neoprene Rubber | CR | X / J | 82°C | 0°C to +80°C |
| Nitrile Rubber | NBR | XA / JA | 93°C | -20°C to +82°C |
| EPDM | EPDM | XB / JB | 150°C | -40°C to +125°C |
| ПТФЭ | ПТФЭ | F / XC / JC | 232°C | -30°C to +150°C |
| Silicone Rubber | SI | XD / JD | 250°C | -70°C to +150°C |
| Fluororubber | VITON | XE / JE | 204°C | -23°C to +150°C |
| Natural Rubber | NR | X1 | 85°C | -20°C to +85°C |
| Nylon | PA | N | 93°C | -30°C to +93°C |
Main Dimensions — PN6 / PN10 / PN16
| DN | NPS | L | H | H0 | A | B | PN6 | PN10 | PN16 |
|---|
| D0 | n-d | D0 | n-d | D0 | n-d |
|---|
| 50 | 2 | 43 | 63 | 315 | 180 | 65 | 110 | 4-14 | 125 | 4-18 | 125 | 4-18 |
| 65 | 2-1/2 | 46 | 70 | 330 | 180 | 65 | 130 | 4-14 | 145 | 4-18 | 145 | 4-18 |
| 80 | 3 | 46 | 83 | 390 | 245 | 72 | 150 | 4-18 | 160 | 8-18 | 160 | 8-18 |
| 100 | 4 | 52 | 105 | 431 | 240 | 72 | 170 | 4-18 | 180 | 8-18 | 180 | 8-18 |
| 125 | 5 | 56 | 115 | 455 | 240 | 72 | 200 | 8-18 | 210 | 8-18 | 210 | 8-18 |
| 150 | 6 | 56 | 137 | 626 | 350 | 93 | 225 | 8-18 | 240 | 8-22 | 240 | 8-22 |
| 200 | 8 | 60 | 164 | 720 | 350 | 93 | 280 | 8-18 | 295 | 8-22 | 295 | 12-22 |
| 250 | 10 | 68 | 206 | 800 | 550 | 350 | 335 | 12-18 | 350 | 12-22 | 355 | 12-26 |
| 300 | 12 | 78 | 230 | 860 | 600 | 350 | 395 | 12-22 | 400 | 12-22 | 410 | 12-26 |
| 350 | 14 | 78 | 248 | 883 | 600 | 350 | 445 | 12-22 | 460 | 16-22 | 470 | 16-26 |
| 400 | 16 | 102 | 289 | 972 | 600 | 350 | 495 | 16-22 | 515 | 16-26 | 525 | 16-30 |
| 450 | 18 | 114 | 320 | 1043 | 750 | 380 | 550 | 16-22 | 565 | 20-26 | 585 | 20-30 |
| 500 | 20 | 127 | 343 | 1098 | 750 | 380 | 600 | 20-22 | 620 | 20-26 | 650 | 20-33 |
| 600 | 24 | 154 | 413 | 1236 | 750 | 380 | 705 | 20-26 | 725 | 20-30 | 770 | 20-36 |
| 700 | 28 | 165 | 478 | 1431 | 750 | 380 | 810 | 24-26 | 840 | 24-30 | 840 | 24-36 |
| 800 | 32 | 190 | 525 | 1488 | 750 | 380 | 920 | 24-30 | 950 | 24-33 | 950 | 24-39 |
Optional Pneumatic Accessories
- Single-solenoid valve
- Double-solenoid valve
- Limit switch box
- Electro-pneumatic positioner
- Pneumatic positioner
- I/P converter
- Air filter regulator
- FRL air treatment unit
- HVSD manual override
Размеры, материалы, конфигурация привода и предельные значения давления и температуры определяются окончательным техническим чертежом клапана WDL и утвержденным техническим паспортом проекта.
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