Overview

Self relieving 2 piece ball valve features trunnion mounted configuration, of which the body and bonnet are connected by bolts, and the seal adopts reinforced PTFE embedded in the stainless steel ring. It is suitable for long-distance pipelines and general industrial pipelines. Due to its strength and safety,  it is suitable for various corrosive and non-corrosive media.

Compared with the floating ball valve, during working, the force generated by the fluid pressure in front of the valve on the ball is all transmitted to the bearing, and the ball will not move to the valve seat, so the valve seat will not bear excessive pressure, so the sealing performance is stable and the service life is long.

Features

1. Labor-saving operation:

The ball is supported by the upper and lower bearings to reduce friction and eliminate the excessive torque caused by the huge sealing load formed by the imported pressure pushing the ball and the sealing seat.

2. Reliable sealing performance:

PTFE unisexual material sealing ring is embedded in the stainless steel valve seat, and the end of the metal valve seat is equipped with a spring to ensure sufficient pre-tightening force of the sealing ring. When the sealing surface of the valve is worn during use, it will be under the action of the spring. The valve continues to ensure good sealing performance.

3. Fire protection structure:

In order to prevent the PTFE sealing ring from burning due to sudden heat or fire, causing a large leak, which will encourage the fire, a fireproof sealing ring is set between the ball and the valve seat. When the sealing ring is burned, Under the action of the spring force, the valve seat sealing ring is quickly pushed to the ball to form a metal-to-metal seal, which has a certain degree of sealing effect. The fire resistance test meets the requirements of AP16FA and API607 standards.

4. Automatic pressure relief function:

When the pressure of the stagnant medium in the valve cavity rises abnormally and exceeds the pre-load of the spring, the valve seat retreats away from the sphere to achieve the effect of automatic pressure relief. After the pressure is relieved, the valve seat automatically recovers.

5. Self-Drainage:

Drain holes are set up and down the valve body to check whether the valve seat is leaking. During work, when the valve is fully open or fully closed, the pressure in the middle cavity can be removed, and the packing can be directly replaced; the middle cavity can be discharged. Retentate, reduce the pollution of the medium to the valve.

Scope

 

 

  

1. Heavy-duty valve expert with proven expertise in harsh environment;
2. Stringent quality control and traceable reports to provide zero-defect products;
3. Rugged and durable configuration according to API, ASME, BS, JIS, EN standards;
4. All kinds of UG, PRO/E, Solidworks software simulations ensure the efficiency and robustness for tailored components;

1.Q:Are you are a trading company or manufacturer?
   A:We are a manufacturer with 7000-sqm factory and 100 employees.

2.Q: Can you provide the assembly drawing for confirmation ?
   A: Yes, we can give the relavant drawing within 24 hours.

3.Q: Can you do non destructive test for valve components ?
   A: Yes, we can perform radiographic testing, penetration testing, ultrasonic testing, magnetic particle testing, etc

4.Q: How can I vist you when I am in China?
   A: We are near the Wenzhou Airport. If you take a plane, it takes 2 hours to reach our factory from Shanghai, 2 hours from Guangzhou, 3 hours from Beijing.

5.Q: Can we take sample for quality check?
A: Definitely. You can advise the model number and we will prepare the sample within 7 days.

6.Q: How can I become your distributor or agent?
A: You can send your company profile and reference list to our sales manager.

7.Q: Can you help with site maintenance and commissioning?
A: Yes, we are glad to offer our assistance whenever you need it. We can send our after sales team to address the issue within 4 days