How it works
Double-acting linear cylinder
Knife gate
5/2 single-solenoid pilot
Inductive end sensors
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
Applications
Media and industries
- Viscous Media
- Powdered and crystallized media
- Waste paper
- Slurry
- Extractive industry
- Pulp And Paper Industry
Gate gate valve with through knife is designed for installation on pipelines as a shut-off device and controlling the flow of medium with high concentration of solid particles. It can also be used in gravity feed systems for solid and powdery substances, as the cutting edge of the knife allows cutting off high density flows.
Pneumatic distributors are used for control in pneumatic systems with NAMUR docking surface, for installation of distributors through holes in the body. Electromagnetic control, is realized by means of voltage coils 12-AC, 12-DC, 24-AC, 24-DC, 110-AC, 220-AC. Depending on the model, the valves have one-way or two-way control. Solenoid operated pneumatic valves have a wide range of models and include common switching types for three (3/2) and five (5/2 and 5/3) line pneumatic valves. They are intended for use with gate valves with pneumatic cylinder. It can also be used on other pneumatically actuated valves.
Induction sensor is a non-contact type sensor designed to control the position of objects made of metals. It is not sensitive to other materials. Induction sensors are successfully and widely used to solve many problems of process automation in production. They are manufactured with normally open and normally closed contacts, but there are variants with both types of contact simultaneously. They work by changing the parameters of the magnetic field created by the inductance coil inside the sensor.
Technical characteristics of gate valves DNOVA GVKRT3431N-2W-Fb-2P interflanged, body - carbon steel WCB, gate - stainless steel 304, sealing - NBR, with pneumatic actuator, pneumatic valve 4V210-08 KUOIN 220V and induction sensors LJ12A3-4-J/EZ:
| Name | Meaning |
| Connection type | interflange |
| Medium | viscous media, powdered and crystallized media, waste paper, slurry |
| Type of control | pneumatic actuator |
| Application | extractive industry, pulp and paper industry |
| Gate valve type | Schieber |
| Working medium temperature, °C | from -30 to +110 |
| Manufacturer's country | China |
Gate valves DNOVA GVKRT3431N-2W-Fb-2P interflanged, body - carbon steel WCB, gate - stainless steel 304, sealing - NBR, with pneumatic actuator, pneumatic valve 4V210-08 KUOIN 220V and induction sensors LJ12A3-4-J/EZ
Dimensions and dimensions of gate valves DNOVA GVKRT3431N-2W-Fb-2P interflanged, body - carbon steel WCB, gate - stainless steel 304, sealing - NBR, with pneumatic actuator, pneumatic valve 4V210-08 KUOIN 220V and induction sensors LJ12A3-4-J/EZ:
| Size | DN, mm | L, mm | D, mm | D1, mm | D2, mm | H1, mm | G, inch | N - Th | T, mm |
| DN100 | 100 | 51 | 220 | 180 | 156 | 428 | 1/2″ | 8 – M16 | 12 |
| DN150 | 150 | 57 | 285 | 240 | 211 | 553 | 3/4″ | 8 – M20 | 14 |
| DN200 | 200 | 70 | 340 | 295 | 266 | 727 | 3/4″ | 8 – M20 | 16 |
| DN250 | 250 | 70 | 395 | 350 | 319 | 880 | 3/4″ | 12 – M20 | 16 |
Sketch dimensions and dimensions Gate valves DNOVA GVKRT3431N-2W-Fb-2P interflanged, body - carbon steel WCB, gate - stainless steel 304, sealing - NBR, with pneumatic actuator, pneumatic valve 4V210-08 KUOIN 220V and induction sensors LJ12A3-4-J/EZ
Table of parts and materials for gate valves DNOVA GVKRT3431N-2W-Fb-2P interflanged, body - carbon steel WCB, gate - stainless steel 304, sealing - NBR, with pneumatic actuator, pneumatic valve 4V210-08 KUOIN 220V and induction sensors LJ12A3-4-J/EZ:
| № | Part name | Material |
| 1 | Casing | WCB steel |
| 2 | Schieber | stainless steel 304 |
| 3 | Guide seal | NBR |
| 4 | Guide seal | NBR |
| 5 | Rack | steel Q235 |
| 6 | Rod | steel 45 |
| 7 | Rack head | cast iron GGG40 |
| 8 | Pneumatic cylinder | - |
| 9 | Rod coupling | steel Q235 |
| 10 | Solenoid valve | - |
| 11 | Filter | - |
Sketch of parts and materials of slide gate valves DNOVA GVKRT3431N-2W-Fb-2P interflanged, body - carbon steel WCB, gate - stainless steel 304, sealing - NBR, with pneumatic actuator, pneumatic valve 4V210-08 KUOIN 220V and induction sensors LJ12A3-4-J/EZ
Technical parameters of SC pneumatic cylinders:
| Name | Significance |
| Action type | double-acting |
| Operating medium | compressed air |
| Mounting type | FA FB CA CB LB YB |
| Damping | adjustable |
| Damping length, mm | 32 |
| Working pressure range, bar | 1-9 |
| Maximum allowable pressure, bar | 13.5 |
| Operating temperature range, °C | from -5 to +70 |
Dimensions and dimensions of SC pneumatic cylinders:
| Pneumatic cylinder model | SC 125x145 | SC 200x220 |
| A, mm | 246 | 320 |
| B, mm | 102 | 128 |
| C, mm | 144 | 192 |
| D, mm | 60 | 80 |
| E, mm | 70 | 80 |
| F, mm | 32 | 48 |
| G, mm | 40 | 50 |
| H, mm | 50 | 60 |
| I, mm | 39 | 52 |
| J, mm | 11 | 14 |
| K | M27x2 | M36x2 |
| L | M12x1.75 | M16x2 |
| M, mm | 15 | 30 |
| N, mm | 20 | 25 |
| O, inch | G1/2″ | G3/4″ |
| S, mm | 140 | 220 |
| T, mm | 110 | 175 |
| V, mm | 32 | 50 |
| W, mm | 29 | 46 |
Sketch of dimensions and dimensions of SC pneumatic cylinders
Technical parameters of pneumatic valve 4V210-08 KUOIN:
| Design | Spool-type |
| Test pressure (body strength test. Not for operation!), bar | 15 |
| Working pressure (recommended range for normal operation), bar | 1.5 ÷ 8 |
| Valve type | 5/2 five-port, two-position |
| Working fluid | purified air (40 µm filter fineness) |
| Effective cross-sectional area, mm2 | 16 (Cv = 0.89) |
| Operating temperature, °C | from -20 to +70 |
| Maximum actuation frequency | 8 cycles per second |
| Manual override | yes |
| Protection rating | IP 65 |
| Connection to pneumatic actuator | via pneumatic hoses |
| Surface mounting | via through holes in the housing |
| Body material | anodized aluminum |
| Exhaust port dimensions (vent to atmosphere) | 2 - G1/4” |
| Air outlet port size (to pneumatic actuator) | 2 - G1/8” |
| Air inlet port size (to pneumatic valve) | G1/8” |
| Response time, sec | 0.05 |
| Supply voltage, V | 220AC 24DC |
| Coil power | 220VAC – 5.5 VA 24VDC – 4.8 W |
| Weight, kg | 0.22 |
| Average service life, cycles | 10,000,000 |
Pneumatic valve 4V210-08 KUOIN
Technical parameters of induction sensors LJ12A3-4-J/EZ:
| Name | meaning |
| Construction | cylindrical |
| Sensor type | induction |
| Supply voltage, V | 220 |
| Current, mA | 400 |
| Output state | normally open |
| Triggering distance, mm | 4 |
| Operation indication | is |
| Degree of protection, IP | 67 |
Induction sensors LJ12A3-4-J/EZ
- Body material
- Carbon steel A216 Gr WCB/25L
- Maximum allowable temperature
- 110 °C
- Connection type
- Compact flanged
- Control type
- Pneumatic actuator
- Operating environment
- Viscous Media, Powdered and crystallized media, Waste paper, and Slurry
- Applications
- Extractive industry and Pulp And Paper Industry
- Nominal pressure
- 16 bar
- Type of seal
- NBR
- Locking material
- Stainless steel AISI 304
- Manual override
- No
- Limit switches
- No
- Type of pneumatic actuator
- double action
- 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