How it works
Knife gate
Construction
Parts and materials
The gate valve is designed for installation on a pipeline as a shut-off device and for regulating the flow of the working medium in water supply systems (except for drinking water supply systems) and the chemical industry.
Pneumatic distributors are used for control in pneumatic systems with a NAMUR mating surface for installing distributors through through holes in the body. Electromagnetic control is carried out using voltage coils 12-AC, 12-DC, 24-AC, 24-DC, 110-AC, 220-AC. Depending on the model, distributors have one-way or two-way control. Pneumatic distributors with electromagnetic control have a wide range of models and include common types of switching for three (3/2) and five (5/2 and 5/3) linear pneumatic distributors. Intended for use with gate valves with a pneumatic cylinder. Application is also possible on other valves with a pneumatic drive.
Technical characteristics of the DNOVA GVKR1331N-2W-Fb-2P DN80 PN10 wafer gate valves, with a retractable spindle, body - cast iron GGG-40, seal - NBR, with pneumatic actuator, WENZ and pneumatic distributor 4V210-08 KUOIN 220V:
| Name | Meaning |
| Nominal pressure PN, bar | 10 |
| Connection type | interflange |
| Working medium | water |
| Control type | pneumatic drive |
| Application | water supply, heat supply, industry |
| Gate valve type | Gate valve |
| Working environment temperature, °C | from -30 to +110 |
Sketch of the dimensions and sizes of the gate valves DNOVA GVKR1331N-2W-Fb-2P DN80 Ru10 interflange, with a rising spindle, body - cast iron GGG-40, seal - NBR, with pneumatic actuator, WENZ and pneumatic distributor 4V210-08 KUOIN 220V
Dimensions and sizes of gate valves DNOVA GVKR1331N-2W-Fb-2P DN80 Ru10 interflange, with a retractable spindle, body - cast iron GGG-40, seal - NBR, with pneumatic actuator, WENZ and pneumatic distributor 4V210-08 KUOIN 220V:
| Size | Du80 |
| DN, mm | 80 |
| L, mm | 51 |
| D, mm | 200 |
| D1, mm | 160 |
| D2, mm | 132 |
| D0, mm | 100 |
| H1, mm | 558 |
| G, inch | 1/2″ |
| N - Th | 8 – M16 |
| T, mm | 12 |
| Ød, mm | 18 |
| ⬤, mm | 2 |
| 〇, mm | 6 |
Sketch of parts and materials of gate valves DNOVA GVKR1331N-2W-Fb-2P DN80 Ru10 interflange, with a rising spindle, body - cast iron GGG-40, seal - NBR, with pneumatic actuator, WENZ and pneumatic distributor 4V210-08 KUOIN 220V
Table of parts and materials of gate valves DNOVA GVKR1331N-2W-Fb-2P DN80 Ru10 interflange, with a rising spindle, body - cast iron GGG-40, seal - NBR, with pneumatic actuator, WENZ and pneumatic distributor 4V210-08 KUOIN 220V:
| Item No. | Details | Material |
| 1 | Frame | cast iron GGG40 |
| 2 | Sealing ring | NBR |
| 3 | Gate | Stainless steel SS304 |
| 4 | Guide seal | PTFE |
| 5 | Stuffing | PTFE |
| 6 | Gland packing | WCB steel |
| 7 | Pin | steel 45 |
| 8 | Cartridge | WCB steel |
| 9 | Stock | steel 2Cr13 |
| 10 | Rack | steel Q235 |
| 11 | Switch | - |
| 12 | Pneumatic cylinder | - |
| 13 | Solenoid valve | - |
| 14 | Filter | - |
Technical parameters of SC pneumatic cylinders
| Name | Meaning |
| Model | SC |
| Design | double acting |
| Working environment | compressed air |
| Damping | adjustable |
| Working pressure range, bar | 1-9 |
| Operating temperature range, °C | from -5 to +70 |
Sketch of dimensions and sizes of SC pneumatic cylinders
Dimensions and sizes of SC pneumatic cylinders
| Model | SC 100x100 |
| A, mm | 112 |
| A1, mm | 125 |
| A2, mm | 70 |
| A3, mm | 50 |
| A4, mm | 104 |
| h3, mm | 10 |
| h4, mm | 10 |
| NM, mm | 4-M8 |
| nd, mm | 2-Ø8.2 |
| B, mm | 112 |
| B1, mm | 75±0.5 |
| B2, mm | 32±0.5 |
| C, mm | 33 |
| D, mm | Ø100 |
| E, mm | 21 |
| F, mm | 6.2±0.1 |
| S, mm | 100±1 |
| H, mm | 126 |
| H1, mm | 34±1 |
| H2, mm | 12±0.5 |
| H3, mm | 24.5±1 |
| d1, mm | 10.2 |
Technical parameters of the pneumatic distributor DNOVA 4V210-08 KUOIN
| Name | Meaning |
| Type of pneumatic distributor | spool valve |
| Model of pneumatic distributor | 4V210-08 KUOIN |
| Working pressure, bar | 1.5 ÷ 1.8 |
| Response frequency, cycles/sec | 5 |
- Body material
- Cast iron GGG40/EN-GJS-400-15
- Connection type
- Compact flanged
- Type of seal
- NBR
- Disc material
- Stainless steel AISI 304
- 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.