- Knife gate valves
- Bidirectional knife gate valves of PA 520 series
Bidirectional knife gate valves of PA 520 series
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PA 520 series knife gate valves are designed to block the flow of liquids with a content of suspended solids up to 5%. Wafer-type connection to the pipeline. The seat design, accuracy and quality of the components make it possible for the knife gate valves of this series to reliably shut off the working medium flow in any direction. PA 520 series valves can be made of cast iron, carbon steel, various types of stainless steel, based on customer requirements. Due to reliability and simplicity of the design, the use of high-quality materials and components, PA 520 series knife gate valves are widely used in various industries. Main applications: – paper-and-pulp industry; – mining industry; – chemical industry; – treatment plants, sewerage networks; – food industry
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Manufacture and supply: | According to TU 3700-002-55604618-2013 |
Design: | Bidirectional knife gate valve |
Nominal diameter | DN 50 – DN 1200 |
Working pressure |
– DN 50-250 – 10 kgf/cm2 – DN 300-450 – 6 kgf/cm2 – DN 500-600 – 4 kgf/cm2 – DN 700-1200 – 2 kgf/cm2 |
Actuator: |
– handwheel DN 50-500, – gearbox DN 50-1200, – lever DN 50-300 – pneumatic actuator, electric actuator DN 50-1200 |
Main process media: | For transportation of liquids with suspended particles content up to 5%. Recommended for transportation of waste water |
Connection: |
– wafer between pipeline flanges; (Connection dimensions acc. to GOST 33259-15, version B, mating flanges – acc. to GOST 33259-15, type 01 or 11, version B) |
Process medium supply direction: | Any |
Climatic version: | У, УХЛ4, ХЛ, Т, ТМ, ТВ acc. to GOST 15150-69 |
Actuator type'sPromArm LLC can supply any actuator types since the knife gate valve design is capable of complete interchangeability of components. |
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Manual | Automatic | Accessories |
Handwheel with a rising stem | Electric actuator | Position indicator |
Handwheel with a non-rising stem | Pneumatic actuator | Limit switches |
Chainwheel | Hydraulic actuator | Positioner |
Lever | Stem extension | |
Gearbox |

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