| Customization: | Available |
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| Media: | Water |
| Temperature: | Ordinary Temperature |
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Product Overview
Introducing the meticulously engineered H76 Wafer-Type Dual Disc Check Valve, an automatic solution crafted to effectively prevent medium backflow. Boasting a sleek wafer-style connection, this valve is a cornerstone in the pipeline systems of industries like petroleum, chemical, power, water supply, and drainage. Constructed with durability in mind, it features a robust body available in corrosion-resistant stainless steel (e.g., 304, 316) or sturdy carbon steel (WCB). This guarantees not only resilience against corrosion but also exceptional tolerance to high pressures, along with an efficient and swift opening/closing mechanism.
Structure and Working Principle
- Dual Disc Design: Ingeniously crafted, two symmetrical discs are pre-tensioned with springs to ensure a rapid closure, significantly reducing the potential impact of water hammer.
- Wafer-Style Installation: Designed for efficiency, the flangeless valve body is effortlessly clamped between pipeline flanges via bolts. This space-saving solution is perfect for compact piping layouts.
- Operation: As fluid pressure surges forward, the discs are gently pushed open; once the flow stops or reverses, the discs spring into action, closing instantly under the combined force of springs and reverse pressure to halt any backflow.
Key Features
- Low Water Hammer Effect: The expertly engineered split-disc design minimizes closing impact, ensuring the integrity and longevity of your pipeline.
- Lightweight: With a weight reduction of 30%~50% compared to conventional check valves, installation and maintenance become a breeze.
- Reliable Sealing: Whether rubber, PTFE, or metal-to-metal hard sealing, these seal faces are designed to handle water, steam, oils, and more with impeccable reliability.
- Versatility: The choice of stainless steel accommodates corrosive environments like seawater and acids, while carbon steel provides a cost-effective solution for standard conditions.
Applications
- Municipal water supply and drainage systems
- Petrochemical pipelines
- Thermal power plant cooling water circulation
- HVAC systems
- Marine and offshore platforms
Selection and Installation Guidelines
- Selection Criteria: Opt for the appropriate material and seal type, taking into consideration medium corrosivity, temperature, pressure, and pipe dimensions.
- Installation Direction: Ensure the valve arrow is aligned with the flow direction, suitable for both horizontal and vertical mounting.
- Maintenance: Regular inspections of disc springs and seal surfaces are recommended to prevent debris accumulation and ensure optimal performance.
The H76 Wafer-Type Dual Disc Check Valve redefines excellence with its compact design, rapid response, and minimal maintenance requirements. This makes it an unparalleled choice for backflow prevention in space-constrained or high-frequency operational environments. Achieve peak performance by selecting the right materials and sealing solutions to meet specific operating conditions.
| Pressure Rating | PN10~PN40 (or Class 150~300) |
| Nominal Diameter | DN50~DN600 (2"~24") |
| Temperature Range: | Stainless Steel: -29ºC~200ºC (rubber seal) / 425ºC (metal seal) |
| Carbon Steel: -29ºC~425ºC | |
| Connection Standards | GB, ANSI, DIN, JIS wafer flange dimensions. |
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