Products
Pressure Sealed Bonnet Gate Valve
✧ Description for Pressure Sealed Bonnet Gate Valve
Pressure Sealed Bonnet Gate Valve is a gate valve designed for high pressure and high temperature environments. Its pressure sealing cap structure can ensure sealing performance under extreme working conditions. At the same time, the valve adopts Butt Welded End Connection, which can enhance the connection strength between the valve and the pipeline system and improve the overall stability and sealing of the system.
✧ High quality Pressure Sealed Bonnet Gate Valve supplier
NSW is an ISO9001 certified manufacturer of industrial ball valves. API 600 Wedge Gate Valve Bolted Bonnet manufactured by our company have perfect tight sealing and light torque. Our factory has a number of production lines, with advanced processing equipment experienced staff, our valves have been carefully designed, in line with API 600 standards. The valve has anti-blowout, anti-static and fireproof sealing structures to prevent accidents and extend service life.
✧ Parameters of Pressure Sealed Bonnet Gate Valve
| Product | Pressure Sealed Bonnet Gate Valve |
| Nominal diameter | NPS 2”, 3”, 4”, 6”, 8” , 10” , 12” , 14”, 16”, 18”, 20” 24”, 28”, 32”, |
| Nominal diameter | Class 900lb, 1500lb, 2500lb. |
| End Connection | Butt Welded (BW), Flanged (RF, RTJ, FF), Welded. |
| Operation | Handle Wheel, Pneumatic Actuator, Electric Actuator, Bare Stem |
| Materials | A217 WC6, WC9, C5, C12 and other valves material |
| Structure | Outside Screw & Yoke (OS&Y)，Pressure Seal Bonnet, Welded Bonnet |
| Design and Manufacturer | API 600, ASME B16.34 |
| Face to Face | ASME B16.10 |
| End Connection | ASME B16.5 (RF & RTJ) |
| ASME B16.25 (BW) | |
| Test and Inspection | API 598 |
| Other | NACE MR-0175, NACE MR-0103, ISO 15848, API624 |
| Also available per | PT, UT, RT,MT. |
✧ Pressure Sealed Bonnet Gate Valve
-Full or Reduced Bore
-RF, RTJ, or BW
-Outside Screw & Yoke (OS&Y), rising stem
-Bolted Bonnet or Pressure Seal Bonnet
-Solid Wedge
-Renewable seat rings
✧ Features of Pressure Sealed Bonnet Gate Valve
High pressure and high temperature adaptability
- The valve material and structural design have been specially considered to adapt to the working conditions under high pressure and high temperature environment.
- It can operate stably under high pressure levels such as Class 900LB, 1500LB, and 2500LB.
Excellent sealing performance
- The pressure sealing cap structure ensures that the valve can still maintain a tight sealing state under high pressure.
- The metal sealing surface design further improves the sealing performance of the valve.
Reliability of butt welding end connection
- The butt welding connection method is adopted to form a solid integrated structure between the valve and the pipeline system.
- This connection method reduces the risk of leakage and improves the overall strength and stability of the system.
Corrosion and wear resistance
- The valve is made of corrosion-resistant and wear-resistant materials both inside and outside to improve the service life and reliability of the valve.
Compact structure and easy maintenance
- The valve is compact in design and occupies little space, which is convenient for installation and maintenance in a small space.
- The seal design is easy to inspect and replace, which reduces maintenance costs and time.
Valve body and valve cover connection form
The connection between the valve body and the valve cover adopts self-pressure sealing type. The greater the pressure in the cavity, the better the sealing effect.
Valve cover center gasket form
The pressure sealed bonnet gate valve uses a pressure sealing metal ring.
Spring loaded packing impact system
If requested by the customer, a spring-loaded packing impact system can be used to improve the durability and reliability of the packing seal.
Stem design
It is made by integral forging process, and the minimum diameter is determined according to standard requirements. The valve stem and gate plate are connected in a T-shaped structure. The strength of the valve stem joint surface is greater than the strength of the T-shaped threaded part of the valve stem. The strength test is conducted in accordance with API591.
✧ Application scenarios
This type of valve is widely used in high-temperature and high-pressure industrial fields such as petroleum, chemical, electric power, and metallurgy. In these occasions, the valve needs to withstand the test of high temperature and high pressure while ensuring no leakage and stable operation. For example, in the process of oil extraction and processing, gate valves that can withstand high temperature and high pressure are needed to control the flow of oil and gas; in chemical production, gate valves that are resistant to corrosion and wear are needed to ensure the stability and safety of the production process.
✧ Maintenance and care
In order to ensure the long-term stable operation of the Pressure Sealed Bonnet Gate Valve, it is necessary to perform regular maintenance and care on it. This includes:
1. Regularly check the sealing performance of the valve, the flexibility of the valve stem and transmission mechanism, and whether the fasteners are loose.
2. Clean the dirt and impurities inside the valve to ensure the smooth operation of the valve.
3. Regularly lubricate the parts that need lubrication to reduce wear and friction.
4. If the seal is found to be worn or damaged, it should be replaced in time to ensure the sealing performance of the valve.
