DN20 Water Meter Plastic Back Flow Preventer Check Valve
Product Description
DN20 Water Meter Plastic Back Flow Preventer Check Valve
DN20 CHECK VALVE
Cartridge check valves (also called non-return valves) are designed for simple installation and offer outstanding performance inside mating housing.
They are valves which only allows water to flow in one direction and prevents backflow.
XHnotion cartridge check valves are not only for water, also for air now.
Applications include faucets, showers, valves and heating systems for residential or commercial installations, as well as pumps.
All the models are 100% tested during production for drip tight operation.
Maximum temperature and pressure rating is for most models 200F(90C)/230psi.
DN cylindrical cartridges cover a size range from 8 mm to 25 mm and offer the easiest assembly:
they can be inserted into the application device both in the direction of flow and against the direction of flow.
They need to be held into place (retention) in both directions.
FEATURES AND BENEFITS
100% factory tested drip in operation.
Easy to insert into the application devive.
Spring loaded plunger: operates in any position.
Extra low headloss, extra low cracking pressure.
SPECIFICATION
| Material | Acetal housing, core, cover; EPDM O-Ring; SS304 Spring |
| Medium | water, air |
| Size | 8mm to 50mm |
| Cracking Pressure | 0.25Psi |
| Max Pressure | 230 Psi |
| Max temperature | 100 C (212F) |
| Production Capacity | 1,000,000 pcs each month |
| Packing Details | Poly bag, outer carton and pallet. |
| Payment Term | T/T, PAYPAL, WESTERN UNION |
| Delivery Time | 3-20 days after confirming the order |
| Minium Order Quantity | 2000 pcs |
| Certificate | ROHS, ACS, FDA, REACH |
STRUCTURE
External o-ring seal provides sealing between the check valve cartridge and the mating cavity into which it is inserted.
Center stem guidance optimizes the return of the plunger head into its seat for effective sealing and to prevent jamming
even in hard water conditions (water with high mineral content or sediments)
Standard XHnotion check valves are spring loaded to ensure reliable operation in any position of installation and fast
positive sealing even in low backpressure conditions.
CERTIFICATION
| Option Available | ||
| Part | Housing | Closing system |
| DN | White | White |
| Materials | |
| Name | DN8, DN10, DN12, DN13,DN14, DN15,DN16, DN17, DN18, DN19, DN20, DN22, DN25. |
| Housing | Acetal |
| Guide | Acetal |
| Core | Acetal |
| Spring | Stainless steel AISI 304 |