Stainless Steel Electric Wafer-Type Knife Gate Valves

Selection & Installation Points

Accurate selection and standard installation directly affect service life, stability and maintenance cost.

Material Selection

1.Strongly corrosive media (acid, alkali, slurry): 316 stainless steel for superior corrosion resistance.

2.General particle-containing or weakly corrosive media: 304 stainless steel for practicality and economy.

Actuator Matching

For dirty or high-viscosity media, use high-torque electric actuators with torque protection to prevent gate jamming and component damage.

Installation Standard

Use wafer-type installation. Ensure the valve is coaxially aligned with pipeline flanges. Tighten bolts symmetrically and evenly to avoid body deformation.

Pipeline Preparation

Clean impurities, welding slag and debris before installation to prevent gate blockage.Strainers are recommended upstream and downstream for better protection.

Electrical Wiring

Follow the wiring diagram strictly. For hazardous areas, use explosion-proof actuators with proper earthing.

Technical Parameters

Core Attributes

Component Materials

Stainless Steel Electric Wafer-Type Knife Gate Valves are constructed entirely of stainless steel, with each component made from rigorously selected materials. These materials balance corrosion resistance, wear resistance, and sealing performance, making them suitable for complex operating conditions containing impurities and strong corrosion, ensuring long-term stable valve operation. Specific materials are as follows:

Design & Manufacturing Standards

Stainless Steel Electric Wafer-Type Knife Gate Valves are designed, manufactured, and tested in accordance with stringent national and industry standards. Every process meets the specifications, ensuring product quality, stable performance, and suitability for complex working conditions in various industries. Specific standards are as follows:

● General Design: JB/T 8528, CJ/T 282

● Wafer Dimensions: GB/T 12221

● Electric Actuator: GB/T 28270

● Pressure-Temperature Ratings: GB/T 12224

● Testing & Inspection: GB/T 13927, JB/T 9092

● Material: ASTM A182

Model Interpretation (PZ973H)

● P: Sludge discharge / knife-type structure

● Z: Gate valve

● 9: Electric actuation

● 7: Wafer connection

● 3: Outside screw & yoke (OS&Y)

● H: Hard alloy overlay on sealing surfaces

Product Definition

Stainless Steel Electric Wafer-Type Knife Gate Valves (PZ973H) are wafer-type shut-off valve equipped with an electric actuator.It features a sharp knife gate that cuts through solids, fibers and particles during closing, effectively preventing pipeline blockage.

With compact structure, full bore flow path and all-stainless steel construction, it provides excellent corrosion resistance and is specially designed for high-viscosity, particle-laden and corrosive media.

It is widely used in wastewater treatment, mining, pulp and paper, chemical slurry systems, etc.Remote automatic control improves automation efficiency, reduces labor cost and ensures stable pipeline operation.