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 GVKR3431M-1W-Fb-2P DN50-400 PN10 wafer gate valves, with a retractable spindle, body - WCB steel, seal - METAL, with a pneumatic actuator, WENZ and a pneumatic distributor 4V210-08 KUOIN 24V:
| 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 +400 |
Sketch of the dimensions and sizes of the gate valves DNOVA GVKR3431M-1W-Fb-2P Dn50-400 Ru10 interflange, with a retractable spindle, body - steel WCB, seal - METAL, with a pneumatic actuator, WENZ and a pneumatic distributor 4V210-08 KUOIN 24V
Dimensions and sizes of gate valves DNOVA GVKR3431M-1W-Fb-2P Dn50-400 Ru10 interflange, with a retractable spindle, body - WCB steel, seal - METAL, with pneumatic actuator, WENZ and pneumatic distributor 4V210-08 KUOIN 24V:
| Size | Dn50 | Dn65 | Dn80 | Dn100 | Dn125 | Dn150 | Dn300 | Dn400 |
| DN, mm | 50 | 65 | 80 | 100 | 125 | 150 | 300 | 400 |
| L, mm | 48 | 48 | 51 | 51 | 57 | 57 | 76 | 89 |
| D, mm | 165 | 165 | 200 | 220 | 250 | 285 | 445 | 565 |
| D1, mm | 125 | 145 | 160 | 180 | 210 | 240 | 400 | 515 |
| D2, mm | 99 | 118 | 132 | 156 | 181 | 211 | 370 | 480 |
| D0, mm | 100 | 100 | 100 | 100 | 100 | 125 | 160 | 200 |
| H1, mm | 417 | 460 | 510 | 600 | 628 | 780 | 1232 | 1528 |
| G, inch | 1/2″ | 1/2″ | 1/2″ | 1/2″ | 1/2″ | 1/2″ | 1/2″ | 1/2″ |
| N - Th | 4 – M16 | 4 – M16 | 8 – M16 | 8 – M16 | 8 – M16 | 8 – M20 | 12 – M20 | 16 – M24 |
| T, mm | 12 | 12 | 12 | 12 | 12 | 14 | 16 | 20 |
| Ød, mm | 18 | 18 | 18 | 18 | 18 | 23 | 23 | 27 |
| ⬤, mm | 4 | 4 | 4 | 4 | 4 | 4 | 6 | 10 |
| 〇, mm | - | - | 4 | 4 | 4 | 4 | 6 | 6 |
Sketch of parts and materials of gate valves DNOVA GVKR3431M-1W-Fb-2P Dn50-400 Ru10 interflange, with a rising spindle, body - steel WCB, seal - METAL, with pneumatic actuator, WENZ and pneumatic distributor 4V210-08 KUOIN 24V
Table of parts and materials of gate valves DNOVA GVKR3431M-1W-Fb-2P Dn50-400 Ru10 interflange, with a rising spindle, body - WCB steel, seal - METAL, with pneumatic actuator, WENZ and pneumatic distributor 4V210-08 KUOIN 24V:
| Item No. | Details | Material |
| 1 | Frame | WCB steel |
| 2 | Gate | Stainless steel SS304 |
| 3 | Guide seal | PTFE |
| 4 | Stuffing | PTFE |
| 5 | Gland packing | WCB steel |
| 6 | Rack | steel Q235 |
| 7 | Pin | steel 45 |
| 8 | Cartridge | WCB steel |
| 9 | Stock | steel 45+Cr |
| 10 | Switch | - |
| 11 | Head of the rack | cast iron GGG40 |
| 12 | Pneumatic cylinder | - |
| 13 | Solenoid valve | - |
| 14 | Filter | - |
| 15 | Wedge | WCB steel |
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 100x70 | SC 100x85 | SC 100x100 | SC 100x120 | SC 100x145 | SC 125x170 | SC 200x320 | SC 250x430 |
| A, mm | 112 | 112 | 112 | 112 | 112 | 140 | 220 | 270 |
| A1, mm | 125 | 125 | 125 | 125 | 125 | 155 | 260 | 220 |
| A2, mm | 70 | 70 | 70 | 70 | 70 | 85 | 140 | - |
| A3, mm | 50 | 50 | 50 | 50 | 50 | 60 | 100 | - |
| A4, mm | 104 | 104 | 104 | 104 | 104 | 130 | 226 | - |
| h3, mm | 10 | 10 | 10 | 10 | 10 | 15 | 20 | - |
| h4, mm | 10 | 10 | 10 | 10 | 10 | 15 | 20 | - |
| NM, mm | 4-M8 | 4-M8 | 4-M8 | 4-M8 | 4-M8 | 4-M10 | 4-M14 | - |
| nd, mm | 2-Ø8.2 | 2-Ø8.2 | 2-Ø8.2 | 2-Ø8.2 | 2-Ø8.2 | 2-Ø10.2 | 2-Ø14.2 | - |
| B, mm | 112 | 112 | 112 | 112 | 112 | 140 | 220 | 270 |
| B1, mm | 75±0.5 | 75±0.5 | 75±0.5 | 75±0.5 | 75±0.5 | 95±0.5 | 105±0.5 | 220±0.5 |
| B2, mm | 32±0.5 | 32±0.5 | 32±0.5 | 36±0.5 | 36±0.5 | 42±0.5 | 48±0.5 | - |
| C, mm | 33 | 33 | 33 | 33 | 33 | 40 | 50 | - |
| D, mm | Ø100 | Ø100 | Ø100 | Ø100 | Ø100 | Ø125 | Ø200 | Ø250 |
| E, mm | 21 | 21 | 21 | 21 | 21 | 30 | 40 | 65 |
| F, mm | 6.2±0.1 | 6.2±0.1 | 6.2±0.1 | 6.2±0.1 | 6.2±0.1 | 8.2±0.1 | - | - |
| S, mm | 70±1 | 85±1 | 100±1 | 120±1 | 145±1 | 170±1 | 320±1 | 430±1 |
| H, mm | 96 | 111 | 126 | 146 | 171 | 205 | 360 | 105 |
| H1, mm | 35±1 | 34±1 | 34±1 | 28±1 | 28±1 | 33±1 | 30±1 | - |
| H2, mm | 12±0.5 | 12±0.5 | 12±0.5 | 12±0.5 | 12±0.5 | 14±0.5 | 23±0.5 | 24±0.5 |
| H3, mm | 24.5±1 | 24.5±1 | 24.5±1 | 24.5±1 | 24.5±1 | 28.5±1 | - | - |
| d1, mm | 10.2 | 10.2 | 10.2 | 10.2 | 10.2 | 12.2 | - | - |
| M, mm | - | - | - | - | - | - | M27x3 | M30x3.5 |
| H4, mm | - | - | - | - | - | - | - | 650 |
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
- Carbon steel
- Connection type
- Compact flanged
- Type of seal
- Metal
- 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.
Total items
Product subtotal