How it works
Spring-return rotary actuator
Butterfly disc
Rotary positioner
The number that matters
Nominal pressure
16bar
The pressure class of the valve body at 20 °C. Working limits depend on the medium and its temperature.
Construction
Parts and materials
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.
Technical parameters water butterfly valve DNOVA WBV1332N-2W-Fb-H body material - Cast iron GGG50, disk material - Stainless steel 316L, seal - NBR with pneumatic actuator with return springs SA, electropneumatic positioner without feedback DNOVA YT-1000RSN:
| Nominal diameter DN, mm | 40 - 300 |
| Working pressure PN, bar | 16 |
| Working medium temperature t, °C | from -20 to +120 |
| Operating medium | water, mineral oils, hydrocarbons, oils, fats |
| Flow direction | two-way |
| Control type | handle |
| Pipeline connection | interflanged |
| Body material | cast iron GGG50 |
| Service life, years | 10 |
Dimensional parameters of water butterfly valve DNOVA WBV1332N-2W-Fb-H body material - Cast iron GGG50, disk material - Stainless steel 316L, seal - NBR with pneumatic actuator with return springs SA, electropneumatic positioner without feedback DNOVA YT-1000RSN:
| DN |
Model electric actuator |
Dimensions | ||||
| E, mm | L1, mm | A, mm | C, mm | P, mm | ||
| 40 | DNOVA SA-083 | 34 | 216 | 114 | 135 | 118 |
| 50 | DNOVA SA-083 | 43 | 216 | 131 | 135 | 118 |
| 65 | DNOVA SA-105 | 46 | 279 | 140 | 160 | 118 |
| 80 | DNOVA SA-105 | 46 | 279 | 150 | 160 | 118 |
| 100 | DNOVA SA-105 | 52 | 279 | 163 | 160 | 118 |
| 125 | DNOVA SA-140 | 56 | 405 | 178 | 210 | 118 |
| 150 | DNOVA SA-140 | 56 | 405 | 191 | 210 | 118 |
| 200 | DNOVA SA-160 | 60 | 465 | 238 | 237 | 118 |
| 250 | DNOVA SA-210 | 68 | 542 | 285 | 295 | 118 |
| 300 | DNOVA SA-210 | 78 | 542 | 315 | 295 | 118 |
Materials of water butterfly valve DNOVA WBV1332N-2W-Fb-H body material - Cast iron GGG50, disk material - Stainless steel 316L, seal - NBR with pneumatic actuator with return springs SA:
| № | Name | Material |
| 1 | Body | cast iron GGG50 |
| 2 | Seat seal | NBR |
| 3 | Disk | stainless steel 316L |
| 4 | Stem | stainless steel AISI 416 |
| 5 | Pin | stainless steel AISI 420 |
| 6 | Bushing | PTFE |
| 7 | O-ring | NBR |
| 8 | Plate | carbon steel |
Main technical characteristics of pneumatic actuators:
| Design | With return springs | |
| Nominal pressure PN, bar | 12 | |
| Operating pressure, bar | 2…8 | |
| Operating medium | Filtered compressed air or non-aggressive gases, oils | |
| Maximum particle diameter | less than 30 µm2 | |
| Operating temperature t, °C | • from -20 to +80 • from -40 to +80 (low-temperature version) • from -20 to +160 (in dry air) |
|
| Adjustment range | ± 5° for rotation at 0° and 90° | |
| Manual duplication | yes | |
| Position indicator | open/closed | |
| Operating environment | indoors and outdoors. (All internal and external parts have an anti-corrosion coating) | |
Pneumatic actuator component materials DNOVA SA:
| № | Name | Quantity | Material | Coating |
| 1 | Body | 1 | extruded aluminum | hard anodized |
| 2 | Side caps | 2 | cast aluminum | |
| 3 | Gear | 1 | stainless steel | nickel plated |
| 4 | Piston | 2 | steel/aluminum | oxidation/ galvanized zinc plating |
| 5 | Plugs | 8 | stainless steel | |
| 6 | Piston ring | 2 | NBR | |
| 7 | Springs | 0-12 | spring steel | epoxy coating |
| 8 | Piston bearing | 2 | engineering plastic | |
| 9 | Piston ring | 2 | NBR | |
| 10 | Plug | 2 | NBR | |
| 11 | Thrust ring | 2 | engineering plastic | |
| 12 | Ring | 1 | engineering plastic | |
| 13 | Washer | 1 | stainless steel | |
| 14 | Spring clip | 2 | stainless steel | |
| 15 | Indicator | 1 | plastic | |
| 16 | Indicator body | 1 | plastic | |
| 17 | Bearing | 1 | engineering plastic | |
| 18 | Cam | 1 | steel | oxidation/ galvanized galvanizing |
| 19 | Bearing | 1 | NBR | |
| 20 | Bearing | 1 | engineering plastic | |
| 21 | Bearing | 1 | engineering plastic | |
| 22 | O-ring | 2 | NBR | |
| 23 | O-ring | 2 | NBR | |
| 24 | Bearing | 2 | stainless steel | |
| 25 | Adjustment nut | 2 | stainless steel | |
| 26 | Adjustment screw | 2 | stainless steel | |
| 27 | Bushing | 2 | aluminum |
Main technical characteristics of DNOVA YT-1000RSN electropneumatic positioner (without feedback):
| Control input signal | 4 ~ 20 mA |
| Internal resistance | 250 ± 15 Ohm |
| Inlet pressure | 1.4~7 bar / 20~100 psi |
| Lever travel angle | 0~90° |
| Compressed air connection thread | 1/4" |
| Pressure gauge connection thread | 1/8" |
| Cable gland | G1/2” |
| Protection type | IP66 |
| Operating temperature | -20°C ~ 70°C |
| Allowable ambient humidity | 10~90RH |
| Linearity | ±1% |
| Hysteresis | ±1% |
| Sensitivity | ±0.5% |
| Repeatability | ±0.5% |
| Compressed air flow rate | 3 l/min (at 1.4 bar) |
| Outlet air flow rate | 80 l/min (at 1.4 bar) |
| Body material | aluminum casting |
| Weight | 2.8 kg |
- Body material
- Cast iron GGG50/EN-GJS-500-7
- Maximum allowable temperature
- 120 °C
- Connection type
- Compact flanged
- Control type
- Pneumatic actuator
- Nominal pressure
- 16 bar
- Type of seal
- NBR
- Disc material
- Stainless steel AISI 316L/1.4404
- Explosion-proof
- No
- Torque
- 67 Nm
- Electropneumatic positioner
- Yes
- Pneumatic actuator
- No
- Manual override
- No
- Limit switches
- No
- Country of origin
- China
Production. Usually 7–14 business days after you approve the quotation and pay. Made-to-specification items are confirmed in the quotation.
Freight. Not charged at checkout. A manager quotes air and sea freight to your port or airport, and nothing ships until you approve the price and the freight.
To North America. From approval and payment to the destination port or airport: air 14–24 days, sea 32–60 days. Estimates, not guarantees.
Terms. EXW Ningbo or FOB Ningbo Port; CIF on request. The agreed term is written on the Proforma Invoice.
Total items
Product subtotal