**Rubber Flap Check Valve for Sump Pump PN10/16**
This check valve is specifically designed for industrial water applications, featuring a unidirectional flow to prevent backflow and reduce water hammer effects. It ensures reliable performance in demanding environments.
**Key Specifications:**
- **Flow Direction:** Unidirectional
- **Standard:** DIN
- **Application:** Industrial Water Systems
- **Model No.:** H44X
- **Disc Material:** Ductile Iron with EPDM Coating
- **Coating:** Epoxy coating on both internal and external surfaces, with a thickness of over 300 microns
- **Pressure Rating:** PN10 / PN16
- **Body Material:** GGG40, GGG45, GGG50
- **Shaft Material:** SS420 / SS431
- **Seal Material:** NBR or EPDM
- **Trademark:** Walter / No Brand
- **Transport Packaging:** Bubble bags and wooden case
- **Size Range:** DN50 to DN600
- **Origin:** Suzhou, Jiangsu
- **HS Code:** 8481300000
**Design Features:**
- The body and bonnet are made from high-quality ductile iron (GGG40/50) for durability and strength.
- The stem is constructed from stainless steel (SS420/431) to ensure corrosion resistance.
- Bolts and nuts are made from SS304 for added reliability.
- The disc is coated with EPDM on a ductile iron base, offering excellent sealing performance.
- The epoxy coating is applied to both the inside and outside of the valve, ensuring long-term protection against corrosion.
- Flanges are manufactured according to BS4504 and ISO 7005 standards, with face-to-face dimensions following BS 5153 and DIN 3352.
- Operating pressure: PN10 / PN16
- Available sizes: 1", 1 1/2", 2" up to 24"
This rubber flap check valve is ideal for sump pump systems, where reliable and efficient flow control is essential.
**About Suzhou Walter Flow Control Equipment Co., Ltd.**
Suzhou Walter is a professional manufacturer specializing in fluid control equipment and firefighting systems. With advanced technology, high-quality products, and exceptional customer service, we have built long-term business relationships with clients around the world.
We offer a wide range of valves and firefighting equipment, including FM Approved, UL Listed, CE-certified products suitable for use in water treatment systems, firefighting projects, high-rise buildings, and the oil and chemical industries.
**Product Range:**
- Gate Valves
- Butterfly Valves
- Check Valves
- Ball Valves
- Automatic Control Valves
- Globe Valves
- Knife Gate Valves
- Strainers
- Flanges and Pipe Fittings
**Firefighting Systems:**
- Fire Sprinkler Systems (including wet alarm valves, deluge valves, water flow detectors, etc.)
- Foam Extinguishing Systems (CO2 extinguishers, pressure foam proportioning devices)
- Gas-based Fire Suppression Systems (FM200, HFC-227ea)
- Fire Hydrants, Fire Hose Reels, Fire Monitors
**Materials Used:**
- Cast Iron
- Ductile Iron
- WCB (Wrought Carbon Steel)
- Stainless Steel
At Walter, we believe in creating value through collaboration and innovation. We are committed to meeting our customers' needs and helping them achieve success.
For more information or to place an order, feel free to contact us directly. Let us be your trusted partner in fluid control solutions.
The structure of the pump is also not complicated. For example, a centrifugal pump is mainly composed of a pump body, an impeller, a sealing ring, a rotating shaft, a shaft seal box and other components. Each part can be finished by casting process. Then assembled into a complete pump.
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