cut-off ball valve

The ZSHO/ZAZO series "O" type cut-off ball valve is a two-piece ball valve structure. The conceptual body consists of two parts, the main and the auxiliary. The core adopts a full diameter, with a high rated flow coefficient and low flow resistance. The surface of the soft sealed ball core is hardened using a special process to make it smooth and wear-resistant. The valve seat sealing material is carbon fiber reinforced polytetrafluoroethylene; The surface of the hard sealed ball core is treated with sprayed tungsten carbide, which has strong wear resistance. The sealing material of the valve seat is stainless steel welded with Si Ti Lai alloy, which has a long service life. The actuator adopts a high-performance dual piston gear tooth strip structure with high transmission efficiency, compact structure or electronic electric actuator. The nominal diameter range of this series of products is DN15-300mm (1/2-12 "), and the nominal pressure rating is PN1.6, 4.0, 6.3 MPa (150Ib, 300lb)

feature

1. Valve seat limit structure (torque stability): The valve seat sealing ring is reasonably pre tightened and limited, greatly reducing the operating torque; The bottom of the seat is equipped with springs to maintain stable torque;

2. Valve stem anti flying design (safe and reliable): The bottom mounted valve stem prevents the valve stem from flying out due to high medium pressure, completely eliminating safety hazards;

3. Unique fireproof design (can maintain sealing after fire): The soft seal valve seat adopts a combination valve seat with a stainless steel seat wrapped with a PTFE sealing ring and a sealing surface. There is a small gap between the stainless steel seat sealing surface and the sphere. When the PTFE sealing ring is destroyed by fire, the floating sphere is pressed against the stainless steel seat under the pressure of the medium, and at the same time, the stainless steel seat is pushed against the core by the spring at the bottom of the valve seat, forming a seal between the sealing surface of the sphere and the stainless steel seat;

4. Anti static device (can lead out static electricity): A simple and easy to install anti-static device that keeps the ball, valve stem, and valve body connected as a whole, and the static electricity generated by the friction of the sealing surface caused by the switch is led out;

5. Standard actuator: Pneumatic and electric are interchangeable.

Optional Description

1. Product model

2. Nominal diameter (DN)

3. Nominal pressure (PN)

4. Rated flow coefficient KV

5. Materials for valve body and internal components

6. Fixed flow characteristics

7. Applicable temperature and medium

8. Operation mode of the whole machine (electric on/off) and input signal

9. Accessories (operator, servo amplifier, etc.)

10. Special requirements