The Full-Opening Brass Gate Valve is a type of valve manufactured from brass material that controls the flow of pipeline media by raising and lowering a gate plate. The valve stem and gate are fully exposed outside the valve body, facilitating easy maintenance and observation.
Product Advantages
High Purity Brass Material
Made from HPb59-1 high purity brass, with a copper content ≥59%, ensuring the product has excellent mechanical strength.
Outstanding Antibacterial Performance
Copper ions effectively inhibit the growth of pathogenic bacteria such as E. coli and Staphylococcus aureus, with an antibacterial rate exceeding 99%, ensuring water hygiene safety.
Multi-Layer Electroplating Protection
The valve body undergoes multi-layer electroplating treatment to effectively prevent oxidation, rust, and the formation of copper verdigris.
Wide Temperature Range
Suitable temperature range from -20°C to 120°C.
High-Strength Valve Stem Design
The valve stem is hardened and treated with surface nitriding, providing high hardness and resistance to wear.
Easy and Effortless Operation
Medium and large-caliber products are equipped with built-in thrust bearings and user-friendly impact handwheels, with an opening/closing torque of ≤3.5 N·m for easy operation.
Bidirectional Shutoff Function
Achieves bidirectional fluid shutoff, with no directional installation restrictions.
Efficient Energy-Saving Design
The flow resistance coefficient at full open is as low as 0.05, reducing energy consumption by 15% compared to standard gate valves.
Product Customization
Bore Specifications: DN15 / DN20 / DN25 / DN32 / DN40 / DN50 / DN65 / DN80 / DN100 / DN125 / DN150 / DN200
Connection Types: Flange Connection / Threaded Connection / Welded Connection / Clamp Connection
Body Materials: HPb59-1 Brass / HPb57-3 Brass / 304 Stainless Steel / 316 Stainless Steel
Sealing Materials: NBR (Nitrile Rubber) / EPDM (Ethylene Propylene Diene Monomer) / FKM (Fluoroelastomer) / PTFE (Polytetrafluoroethylene)
Surface Treatment: Chrome Plating / Nickel Plating / Electrophoretic Coating / Plastic Spraying
The Dunyun full-opening gate valve accepts internal and external screw thread, flange and welding connection. The shell, valve cover and gate plate are processed by hot forging and tempering, and the sealing surface is cut by high-precision sealing plane. The seal test strictly implemented according to GB / T13927-2008 Industrial Valve Pressure Test, the pipe thread accuracy and active length strictly implemented according to ISO228. The pre-factory test qualified rate is 100%.
Using the corresponding force torch wrench or pipe clamp to pull the thread on the same side of the hexagon or octagonal part screw thread active length when installation. Do not put excessive jacking pressure which may cause the deformation of internal end surface.
The hand wheel is designed according to the corresponding torque. Do not use the increased force arm which may damage the valve. Refrigeration, HVAC system gate valve must use the 1.6Mpa (or above nominal pressure) valve.
When installing the flange gate valve, please make sure that the flange surface at both ends of the pipeline is parallel and coaxial, the spacing size should be appropriate, the connection thread should be corresponding, and the deviation shall not be too large, otherwise the installation quality of the valve and sealing performance will be affected.
Technical Specification
- Nominal Pressure: 1.6 MPa
- Working Medium: Water, Oil, Steam
- Working Temperature: -20°C ≤ t ≤ 120°C
- Thread Standard: Conforms to ISO 228
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