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The gate valve is designed to be installed on a pipeline as a shut-off device and to regulate the flow of the working medium in water supply systems (except for drinking water supply systems) and in the chemical industry.
The principle of operation of a gate valve is based on the movement of the gate (knife) perpendicular to the flow of the medium. When the nominal diameter of the pipeline is completely blocked, the flow stops; when partially blocked, the flow is regulated.
The principle of operation of the pneumatic actuator is based on the movement of a built-in piston by compressed air, which enters the system from a compressor or reservoir.
| Name | Meaning |
| Connection type | Interflange |
| Environment | Water, technical water |
| Control type | Pneumatic drive |
| Application | Water supply, heat supply, industry |
| Gate valve type | Gate valve |
| Working medium temperature, °C | From -20 to +300 |
| Country of manufacture | China |
| DN | L, mm | D, mm | D1, mm | D2, mm | H1 | G | N - Th | T, mm | Ød, mm | ⬤ | |
| 50 | 48 | 165 | 125 | 99 | 417 | 1/2" | 4 – М16 | 12 | 18 | 2 | 2 |
| 80 | 51 | 200 | 160 | 132 | 510 | 1/2" | 8 – М16 | 12 | 18 | 2 | 6 |
| 100 | 51 | 220 | 180 | 156 | 600 | 1/2" | 8 – М16 | 12 | 18 | 2 | 6 |
| 125 | 57 | 250 | 210 | 181 | 628 | 1/2" | 8 – М16 | 14 | 18 | 2 | 6 |
| 150 | 57 | 285 | 240 | 211 | 780 | 1/2" | 8 – М20 | 14 | 23 | 2 | 6 |
| 200 | 70 | 340 | 295 | 266 | 880 | 1/2" | 8 – М20 | 18 | 23 | 2 | 6 |
| 250 | 70 | 395 | 350 | 319 | 1088 | 3/4” | 12 – М20 | 18 | 23 | 4 | 8 |
| 300 | 76 | 445 | 400 | 370 | 1232 | 3/4” | 12 – М20 | 20 | 23 | 6 | 6 |

Sketch of overall and installation dimensions GVKR1331M-1W-Fb-2P DN50-300 6/10/16 bar flanged joint, spindle - retractable, body - cast iron GGG40, seal - EPDM, with pneumatic drive, WENZ, pneumatic distributor 4V210-08 24V, induction sensors LJ12A3-4-Z/EX 24V
| № | Part name | Material |
| 1 | Housing | GGG40 cast iron |
| 2 | Slide valve | AISI/SS 304 stainless steel |
| 3 | Guide seal | PTFE |
| 4 | Gland packing | PTFE |
| 5 | Seal | WCB steel |
| 6 | Stand | Q235 steel |
| 7 | Pin | 45 steel |
| 8 | Cartridge | WCB steel |
| 9 | Pneumatic cylinder rod | 45+Cr steel |
| 10 | Switch | - |
| 11 | Stand head | GGG40 cast iron |
| 12 | Pneumatic cylinder | - |
| 13 | Solenoid | - |
| 14 | Filter | - |
| 15 | Wedge | GGG40 cast iron |

Sketch of the main materials for gate valve parts GVKR1331M-1W-Fb-2P DN50-300 6/10/16 bar flanged joint, spindle - retractable, body - cast iron GGG40, seal - EPDM, with pneumatic drive, WENZ, pneumatic distributor 4V210-08 24V, induction sensors LJ12A3-4-Z/EX 24V
| Name | Meaning |
| Model | SC |
| Design | double action |
| Working environment | compressed air |
| Contamination class | 6 |
| Damping | adjustable |
| Working pressure range, bar | 1-9 |
| Working temperature range, °C | from -5 to +70 |
| Model | SC 100x75; SC 100x85; SC 100x110; SC 100x130; SC 100x155 | SC 125x180; SC 125x230 | SC 160x280; SC 160x330 |
| A, mm | 188 | 246 | 283 |
| B, mm | 75 | 102 | 112 |
| C, mm | 114 | 144 | 171 |
| D, mm | 47 | 60 | 65 |
| E, mm | 54 | 70 | 80 |
| F, mm | 21 | 32 | 32 |
| G, mm | 33 | 40 | 50 |
| H, mm | 40 | 50 | 60 |
| I, mm | 26 | 39 | 52 |
| J, mm | 10 | 11 | 14 |
| K | М20х1,5 | М27х2 | М36х2 |
| L | М10х1,5 | М12х1,75 | М16х2 |
| M, mm | 11,5 | 15 | 15 |
| N, mm | 16,5 | 20 | 25 |
| O | G1/2” | G1/2” | G3/4” |
| S, mm | 112 | 140 | 180 |
| T, mm | 84 | 110 | 140 |
| V, mm | 25 | 32 | 40 |
| W, mm | 22 | 29 | 36 |

Sketch of dimensions and sizes of SC pneumatic cylinders
| 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 |
| Name | Meaning |
| Design | cylindrical |
| Sensor type | induction |
| Current, mA | 400 |
| Activation distance, mm | 4 |
| Activation indication | yes |
| Protection rating, IP | 67 |
Ships within 48 hours · Estimated delivery Jun 21 - Jun 26
US$40
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