Cartridge check valves are designed for easy installation and deliver excellent performance within mating housings. These valves allow water to flow in only one direction, preventing backflow. XHnotion cartridge check valves are not only suitable for water but also for air. They are widely used in residential and commercial applications such as faucets, showers, heating systems, and pumps.
Key specifications of the DN12 model include:
- **Model No.**: DN12
- **Connection Form**: Cartridge
- **Pressure**: Low Pressure
- **Sealing Form**: Seals
- **Standard**: ANSI
- **Size**: 8mm - 50mm
- **Spring**: SS304
- **Trademark**: XHnotion or no logo
- **Specifications**: ROHS, REACH, CE, ACS, FDA
- **HS Code**: 8481804090
Additional details include:
- **Material**: Acetal
- **Structure**: Tubular
- **Function**: Allows water to flow in one direction only
- **Flow Direction**: Reversing
- **Application**: Household usage
- **Seal Material**: EPDM
- **Medium**: Drinking Water, Air
- **Transport Package**: Plastic Bag
- **Origin**: China
Cartridge check valves are essential components in plumbing and HVAC systems. They ensure that fluid or air flows in the correct direction, which is crucial for maintaining system efficiency and safety. The design of these valves ensures minimal head loss, making them ideal for a wide range of applications.
Working Principle:
- In static conditions (no flow), the valve is closed due to spring tension.
- When flow occurs, the pressure overcomes the spring force, allowing the valve to open.
- If reverse flow occurs, the spring closes the valve, preventing backflow.
Features and Benefits:
- Zero leakage at both low and high pressure and temperature
- Generous flow structure for minimal head loss
- Compact and easy to install
- Available in sizes from 8mm to 50mm
- No thread connection to avoid potential leaks
**Specifications:**
| Item | Details |
|------|---------|
| Material | Acetal housing, core, cover; EPDM O-Ring; SS304 Spring |
| Medium | Water, Air |
| Size | 8mm to 50mm |
| Cracking Pressure | 0.25 Psi |
| Max Pressure | 230 Psi |
| Max Temperature | 100°C (212°F) |
| Production Capacity | 1,000,000 pcs per month |
| Packing | Poly bag, outer carton, and pallet |
| Payment Term | T/T, PayPal, Western Union |
| Delivery Time | 3–20 days after order confirmation |
| Minimum Order Quantity | 2000 pcs |
| Certifications | ROHS, ACS, FDA, REACH |
**FAQ:**
**Packing:**
Transparent plastic bag + white small box + neutral carton + pallet. Custom packaging options are available.
**Shipping:**
Export port: Ningbo or Shanghai, China. Shipping methods include sea, air, and courier. Delivery time ranges from 3 to 30 days depending on the order.
**Payment Terms:**
We accept T/T, L/C, PayPal, Western Union, etc.
**Samples Policy:**
For regular fittings under 20 pcs, free samples are available with your courier account or you can pick them up. For custom items, we will discuss via email.
**Return Policy:**
We offer a 1-year policy after shipment. If any issues arise during this period, please contact us for support.
Tert-Butyl Peroxy Benzoate Catalysis
TBPB is a low volatility ,high purity,liquid, aromatic peroxuester.it is effective as medium of a broad spectrum of monomers e.g .styrene.ethylenn,acrylics.it is also used to cure (copolymerzation) unsaturated resins .
As peroxo compound, TBPB contains about 8.16 wt% of active oxygen and has a self accelerating decomposition temperature (SADT) of about 60 °C. The SADT is the lowest temperature at which self-accelerating decomposition in the transport packaging can occur within a week, and which should not be exceeded while storage or transportation.[2] TBPB should therefore be stored between minimum 10 °C (below solidification) and maximum 50 °C. Dilution with a high-boiling solvent increases the SADT. The half-life of TBPB, in which 50% of the peroxy ester is decomposed, is 10 hours at 104 °C, one hour at 124 °C and one minute at 165 °C. Amines, metal ions, strong acids and bases, as well as strong reducing and oxidizing agents accelerate the decomposition of TBPB even in low concentrations.[ However, TBPB is one of the safest peresters or organic peroxides in handling. The main decomposition products of tert-butyl peroxybenzoate are carbon dioxide, acetone, methane, tert-butanol, benzoic acid and benzene.
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