详情描述

Z41HFlanged Gate ValveOverview:

Z41HThe actuating part of a gate valve is the gate plate, which moves perpendicular to the fluid direction. Gate valves can only be fully open or fully closed and are not suitable for regulating or throttling. The gate plate has two sealing surfaces. In wedge gate valves, the two sealing surfaces form a wedge shape, with the wedge angle varying according to the valve parameters, usually...5oThe gate disk of a wedge gate valve can be made as a single piece, known as a rigid disk; or it can be designed to produce slight deformation for improved processability, compensating for deviations in the sealing face angle during the manufacturing process. Such a disk is called an elastic disk. When the gate valve is closed, the sealing surface can be sealed solely by the pressure of the medium, i.e., the pressure of the medium pushes the sealing surface of the disk against the opposite side of the valve seat to ensure the sealing of the sealing surface, which is known as self-sealing. Most gate valves use forced sealing, meaning that when the valve is closed, external force must be applied to force the disk against the valve seat to ensure the sealing integrity of the sealing surface. The gate disk of a gate valve moves in a straight line along with the valve stem, and this type of valve is called a rising stem gate valve.(Also known as a clear stem gate valve. Typically, the lifting rod features a trapezoidal thread, converting rotational motion into linear motion through the nut at the top of the valve and the guide slots on the valve body, thereby transforming the operating torque into thrust. In some valves, the nut of the valve rod is mounted on the gate plate. When the handwheel is turned, it drives the valve rod to rotate, lifting the gate plate. Such valves are called swivel stem gate valves or concealed stem gate valves.

 

Z41HFlanged Gate ValveBoasts the following advantages:

1Low fluid resistance, minimal erosion and scouring of the sealing surfaces by the medium.

2Easier to open and close.

3Flow direction is unrestricted, without disturbing the flow or reducing pressure.

4Simple in shape, short in structure length, good in manufacturing process, and widely applicable. Gate valve types: Divided by sealing surface configuration, they can be wedge gate gate valves and parallel gate gate valves. The wedge gate gate valves can be further divided into: single gate plate, double gate plate, and elastic gate plate; parallel gate gate valves can be divided into single gate plate and double gate plate. According to the threaded position of the valve stem, they can be classified into exposed stem gate valves and concealed stem gate valves.

Z41HFlanged Gate ValveProduct Ordering Instructions:

1.When the user has confirmed the type and model of the valve (especially non-standard models), the user should accurately describe the meaning and requirements of the model.

2.Please order according to the product models listed in the sample. If there are any special requirements for the product items, please specify them in the order.

1Structural Length2Flange Standard3Valve structure types: such as full bore or reduced bore channels, body cover connection styles4Valve internals and other material requirements5Pressure tests, inspection standards, markings, and other requirements

3In cases where the valve application is crucial or the environment is complex.,Please provide design drawings and detailed specifications, and our experts will review and ensure they meet standards.

4.Our company can customize electric devices according to specific customer requirements.,Pneumatic drive unit,Turbine unit.

5.Our valves, produced by our company, meet all the requirements specified in the order. Each product undergoes rigorous inspections and tests in accordance with the relevant standards before leaving the factory.

6.All products of Zhongzhi Valves come with a warranty period of: upon customer's formal installation and use.12Within a month or upon product shipment18Within a month.

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