وصف
A water butterfly valve is a type of valve used to control the flow of water or other fluids through a pipeline. It gets its name from the butterfly-shaped disc inside the valve that rotates to open or close the flow. When the valve is fully open, the disc is positioned parallel to the flow direction, allowing unobstructed passage of water. When the valve is closed, the disc is turned perpendicular to the flow, effectively blocking the flow of water. Water butterfly valves are commonly used in various industries and applications, including water treatment plants, sewage systems, irrigation systems, and industrial processes. They are known for their compact design, lightweight construction, and ease of installation. These valves are often preferred for their quick operation, as the disc can be opened or closed with a simple quarter-turn motion. Butterfly valves can be operated manually with a handle or lever, or they can be automated using electric, pneumatic, or hydraulic actuators to control the valve remotely. They are known for their low-pressure drop and relatively low cost compared to other types of valves. It's worth noting that water butterfly valves are specifically designed for use with water and compatible fluids. Different materials and designs may be required for valves intended for use with corrosive or high-pressure fluids. It's important to select the appropriate type of butterfly valve based on the specific application and fluid requirements.
Pneumatic actuators DNOVA SA 065-140 double-acting rotary actuators are used to automate the process of controlling industrial valves with a maximum torque value of up to 2128 Nm. Adjustment range is 5° with valve stem rotation of 90° degrees. Operating environment: indoors and outdoors. (All internal and external parts are anti-corrosion coated).
The limit switch units in the standard version have a position indicator of the closing element (OPEN/CLOSED), weatherproof housing with IP67 degree of protection, standard shaft and mounting bracket made of stainless steel.
Basic technical data and characteristics
| Parameter | Value |
| Nominal diameter DN, mm | 40 – 300 |
| Nominal pressure PN, bar | 16 |
| Flow direction | Bidirectional |
| Operating medium temperature, °C | -20 to +120 |
| Ambient temperature, °C | -20 to +100 |
| Shut-off tightness | Class A |
| Working medium | Cold and hot water, oil-free and grease-free air, stationary air conditioning, mildly aggressive media, other media neutral to material |
| Body material | Cast iron GGG50 |
| Disc material | Cast iron GGG40 |
| Pipeline connection | interflange |
| Control type | Handle |
| Average service life, years | 5 |
| Average cycle life (open/close cycles) | 20,000 (under non-aggressive media and average pressure and temperature conditions) |
Gate dimensions DNOVA Water Butterfly Valve DNOVA WBV1432E-2W-Fb-H
| DN | H | H1 | H2 | L | L1 | ØDм | ØDк | D2 (flow section) |
| mm | ||||||||
| 40 | 146 | 74 | 25 | 43 | 216 | 73 | 75 | 50 |
| DN | H | H1 | H2 | L | L1 | ØDм | ØDк |
| mm | |||||||
| 50 | 146 | 74 | 25 | 43 | 216 | 73 | 84.5 |
| 65 | 156 | 80 | 25 | 46 | 216 | 86 | 104.5 |
| 80 | 163 | 100 | 25 | 46 | 216 | 103 | 123.5 |
| 100 | 180 | 116 | 25 | 52 | 255 | 131 | 139.5 |
| 125 | 189 | 123 | 25 | 56 | 255 | 155 | 169.5 |
| 150 | 206 | 137 | 25 | 56 | 255 | 183 | 196 |
| 200 | 232 | 165 | 35 | 60 | 370 | 235 | 247 |
| 250 | 275 | 203 | 35 | 68 | 370 | 286 | 304 |
| 300 | 314 | 235 | 35 | 78 | 370 | 338 | 358 |
Sketch of gates DNOVA Water Butterfly Valve DNOVA WBV1432E-2W-Fb-H
Materials of parts of rotary disc valves DNOVA Water Butterfly Valve DNOVA WBV1432E-2W-Fb-H
| № | Name | Material |
| 1 | Body | cast iron GGG50 |
| 2 | Cuff | EPDM |
| 3 | Disk | cast iron GGG40 |
| 4 | Stock | stainless steel SS 416/2Cr13 |
| 5 | Hairpin | stainless steel AISI 316L |
| 6 | Sleeve | NBR |
| 7 | Sealing ring | NBR |
| 8 | Fixing plate | carbon steel |
| 9 | Handle with lock | carbon steel |
Sketch of materials for rotary disc valves DNOVA Water Butterfly Valve DNOVA WBV1432E-2W-Fb-H
General information on Pneumatic rotary actuator DNOVA
- Pneumatic actuators DNOVA rotary with return spring SA 065-140 are designed to automate the process of controlling industrial valves with a maximum torque value of up to 2128 Nm.
- Operating temperature from -20 to +80 °C; From -40 to +80 °C low-temperature version; From -20 to +160 °C in dry air
- The adjustment range is 5° when the valve stem is rotated by 90° degrees.
- Operating environment: indoors and outdoors. (All internal and external parts have anti-corrosion coating).
- Position indicator: open/closed.
Parameters and sketch of pneumatic actuator connection DNOVA:
- Pneumatic drive type - with return springs
- Working pressure of pneumatic drive - 6.0 bar
- Drive rotation angle - 90°
- Drive adjustment range - 5°
- Country of origin - China
- Operating environment - indoor and outdoor
- Position indicator - open/closed
- Coating - All internal and external parts have an anti-corrosion coating
تحديد
توصيل
تعتمد تكلفة ومدة تسليم طلبك على عدة عوامل، منها نوع المنتج المطلوب، والكمية، وبلد المقصد. قد تختلف مدة التصنيع ومتطلبات الشحن لكل منتج، مما قد يؤثر على جدول التسليم الإجمالي.
للحصول على معلومات دقيقة ومحدثة حول تكاليف التوصيل ومواعيده، ننصح بالتواصل مع مديري المبيعات لدينا. سيسعدهم تزويدكم بعرض سعر مفصل ووقت تسليم تقديري بناءً على متطلباتكم الخاصة.
لا تتردد في التواصل معنا لأي أسئلة أو مساعدة إضافية بخصوص طلبك.