| Customization: | Available |
|---|---|
| Media: | Water |
| Temperature: | Ordinary Temperature |
| Shipping Cost: | Contact the supplier about freight and estimated delivery time. |
|---|
| Payment Methods: |
|
|---|---|
| Support payments in USD |
| Secure payments: | Every payment you make on Made-in-China.com is protected by the platform. |
|---|
| Refund policy: | Claim a refund if your order doesn't ship, is missing, or arrives with product issues. |
|---|
Suppliers with verified business licenses
Audited Supplier Audited by an independent third-party inspection agency
Structure & Working Principle
Design Features:
Lift-type design: The disc elegantly traverses the vertical centerline of the valve body, making it ideal for vertical installations.
Spring-assisted sealing: Guarantees swift adaptation to pressure variations. Select models are equipped with reinforced springs optimized for horizontal pipeline operations.
Operation:
Closed by default: Under no-flow conditions, the valve remains securely shut, ensuring reliable sealing.
Forward flow: The inlet pressure triumphs over the spring force, elevating the disc to permit smooth fluid flow.
Reverse flow prevention: The combined force of the spring and backpressure securely seals the disc, effectively blocking any backflow.
Key Specifications
Pressure Rating: PN16~PN40 (150LB-300LB)
Temperature Range:
- Carbon steel (WCB): Suitable up to 425°C for water, oil, and steam applications.
- Stainless steel (304/316): Ideal up to 200°C, perfect for handling corrosive media.
Materials & Standards
- Body Materials:
- Carbon steel (WCB), stainless steel (304/316)
Dimensions & Connection
- Nominal Diameter (DN): DN15-DN350
- Connection Type: Flange (RF/FF)
Applications
- Media: Suitable for water, steam, oils, weak acids (e.g., nitric acid), and robust corrosives (e.g., acetic acid).
- Industries:
- Oil & gas: Masterfully engineered for unidirectional flow control.
- Pharmaceutical: Safeguards against backflow contamination, ensuring purity.
- Power plants: Integral for boiler feedwater protection.
- Wastewater treatment: Essential for pump discharge line integrity.
Installation & Maintenance
- Installation: Must be mounted vertically for gravity-assisted sealing. Verify that the pipeline is clean and free of debris.
- Maintenance:
- Regularly inspect the springs and sealing surfaces for optimal performance.
- Keep an eye on thermal fatigue in applications dealing with high temperatures.
| Working pressure | PN16~PN40 OR 150LB~300LB |
| Suitable medium | Water, gas, air and some corrosive liquid |
| Investment | Casting body and cap |
| Delivery time | Usual 15 days |
| Shipping port | NingBo,YiWu |
){kind=link}