Nominal Diameter：DN50-DN4000
Nominal Pressure：PN6-PN40
Body Material：WCB,ZG1Cr18Ni9Ti,ZG0Cr18Ni12Mo2Ti,ZG15Cr1MoV
Bonnet Material：WCB,CF8,CF8M,WC9
Stem Material：2Cr13,1Cr18Ni9Ti,0Cr18Ni12Mo2Ti,25Cr2MoV
Temperature Range：≤80℃
Applied Service：Water,Oil
Manufacture Design：GB/T26146-2010;API6D/API608
Face to Face Dimension：Manual, Gear, Electric, Pneumatic, Hydraulic
Flange Dimension：GB/T17241.6-2008;ASME B16.5JB/T79.1-4-1994
Test and Inspection：GB/T13927-2008;API598

Products Introduction

This valve has reasonable design structure, and possesses high strength at high flow rate without any vibration. it is suitable for urban water supply, oil and other media pipelines, widely used as stop valve and check valve.

 

Products Feature

Low pressure loss: When fully open, there is zero water loss, and the flow path is completely unobstructed; the inner cavity is automatically cleaned, the valve core rotates 90 degrees, automatically flushing the inner cavity of the valve, cleaning the debris in the medium and preventing sedimentation in the valve cavity. The spherical body is hemispherical, providing the highest Cv value for the flow, enhancing the system efficiency of the pump and minimizing wear.

Wear resistance to particles: Utilizing the principle of double eccentricity, during the closing process, only the ball cap comes into contact with the ball seat at the end without friction; the valve seat is welded with wear-resistant self lubricating alloy, which is not easy to wear and is not easily washed away; the knife-shaped ball mouth and the ball cap have a wiping and shearing effect on the ball seat, making it less likely to scale.

Reliable automatic compensation sealing: Under positive pressure, the eccentric principle is used, and the ball body and valve seat become tighter as they close, thus achieving good sealing; under reverse pressure, the floating valve seat automatically pushes towards the ball body under pressure, the higher the pressure, the tighter the valve seat pushes towards the ball body, thus achieving good sealing; this can maintain a very tight seal for a long time and can adapt to harsh conditions. In long-term use, if the valve seat seal is worn or damaged, the valve seat automatically pushes towards the ball body under the action of the spring, thus achieving good automatic compensation function.

Suitable for high velocity media: The ball body is hidden on one side of the valve cavity, forming a straight-through flow path without resistance, a sturdy eccentric fixed crankshaft, and no vibration or noise in high velocity media.

Long life and easy switching: There are no vulnerable parts, due to the eccentric effect, the valve core and valve seat seal completely separate during the opening and closing process, making the valve seat surface and ball cap surface have no friction and no friction rotation, effectively reducing the operation torque and making the operation light; the automatic compensation function of the valve greatly improves the life of the valve.

Easy maintenance: The valve is designed with an upper loading method, the ball cap and support ball body are loaded from the upper part of the valve; during maintenance, only the valve cover needs to be opened and the ball cap and support ball body are taken out for maintenance and sealing ring and other accessories, without having to remove the entire valve from the pipeline, which brings great convenience to underground pipelines, especially in the use of ball valves in the atomic energy industry.

The valve can be maintained while retaining the medium in the pipeline during maintenance, which will not waste energy; this avoids many pre-maintenance tasks for the user, making maintenance more straightforward.

In some specific situations, the valve can continue to operate normally during emergency repairs without affecting the pipeline system, as long as the ball assembly is quickly removed and the upper opening is quickly sealed, the pipeline can immediately resume pressure operation, minimizing the loss of efficiency caused by valve repair.