Knife gate valve, also known as a knife-type gate valve, slurry valve, or mud valve, is a type of valve that uses a gate as its opening/closing component. Its core design feature lies in the blade-shaped gate, which can vertically cut through the medium, making it particularly suitable for handling fibrous, granular, or high-viscosity fluids….
Gate valves shall be of the OS&Y or IS&Y type. OS&Y meaning is Outside Screw and Yoke. When the handwheel of the OS&Y gate valve is rotated to open the valve, the valve stem will rise.Here are some examples of OS&Y gate valve specification parameters: ASME B16.10, API 602, ASTM A182-F304, TRIM.15-HF, CL150, BB and…
Both gate valves and globe valves are commonly used shut-off valves, mainly for opening or closing pipelines (fully open or fully closed). They have some similarities in appearance, so many people who have little contact with valves tend to confuse the two. However, they differ significantly in terms of working principles, structures, performances, and application…
What is Industrial Flange Gate Valves? An industrial flange gate valve is a type of valve used to control the flow of fluids in industrial pipeline systems. It opens or closes the passage by the vertical movement of the gates. When the gate is fully raised, the fluid can pass through the valve unobstructed; when…
In a fluid pipeline system, valves are essential parts, playing a crucial role in the controlling of flow rate, pressure, and flow direction of the fluid. Among verious types of valves, butterfly valves and gate valves are sure two common choices. However, there are many differences between both valves in terms of appearance, structure, working…
Ⅰ.What is a slab gate valve? The slab gate valve uses a plate-shaped gate as the opening and closing component, achieving switching through the linear motion of the gate along a direction perpendicular to the fluid. Its remarkable features in structure are: Gate valves are generally being completely on and off. It can not used…
Ⅰ.Leakage at the Packing of Soft Sealed Gate Valves 1.The packing gland is too loose Evenly tighten the nuts used to compress the packing gland. 2.Insufficient number of packing turns Increase the amount of packing. 3.Packing failure If the packing fails due to long term use or improper storage, new packing needs to be replaced….
Non rising stem gate valves and rising stem gate valves are two common types of valves, and they have some obvious differences in structure, operation and application. The characteristics and differences of these two types of valves will be described in detail below. Structural differences between non rising stem gate valve and rising stem gate…
I. Material Preparation The materials required for converting a manual gate valve into a pneumatic valve include: cylinder, air pipe, fasteners, tools, etc. II. Disassembly of the Manual Valve III. Installation of the Pneumatic Valve Install the Cylinder: Install the cylinder on the the manual valve, determining the installation direction and position of the cylinder…
In industries such as petroleum, natural gas, chemical engineering, and sewage treatment, slurry is a common fluid medium, which is characterized by high viscosity and large particles. In order to ensure the normal transportation and treatment of slurry, it is necessary to select appropriate valves. This article will introduce several common slurry valves and analyze…
Gate valves are in various structural forms, among which the common ones are wedge-type double gate, parallel single gate, parallel double gate, rigid gate, H-type elastic single gate. What are their merits and drawbacks? The Wedge-type Double Gate Valve Advantaged with a low precision requirement for the wedge angle and a well abrasion resistance under…
As we all know, a gate is the opening and closing part of the cast steel gate valve. The movement direction of the gate is perpendicular to the direction of the fluid. The gate valve can only be fully opened and closed, but cannot be adjusted or throttled. 1. Gate of cast steel gate valve…
1.The structure of block valve and gate valve Notes for the type selection in the case of limited installation space The gate valve can rely on the medium tightly pressing on the sealing surface, so as to achieve the nonleakage. However, the spool constantly scrapes the sealing surface of the seat, which easily wear the…
Butterfly valves and gate valves are both common industrial valves, and there are some differences between them in regard of structure and working principles. 1.Different structures between a butterfly valve and a gate valve. A butterfly valve is a valve that uses a disc-shaped plate as a flow cutting element. The valve plate rotates around…
1.Features of the cast steel gate valve The cast steel gate valve has low fluid resistance, and the sealing surface is less eroded by the medium, with easy opening and closing. The flow direction of the medium is not restricted, the flow is not disturbed, and the pressure is not reduced. The structure is simple,…
What is a gate valve? A gate valve is a crucial type of valve in the fluid control field. Here is an introduction to it: 1.Structure Valve body: It is the main part of the gate valve, which is used to connect pipes and accommodate other components. Usually, it is made of materials like cast…
Ball valve and gate valve are two of the most commonly used valves for controlling the flow of fluid in plumbing or gas systems. These valves have similarities in application, but have different strengths to offer. This guide reviews the key differences between ball valves vs. gate valves, giving you the reference to choose the…
Among the usual structural designs of single-gate, double-gate, wedge, parallel and so on, the wedge double-gate and the wedge elastic gate are the most widely used ones. The former’s gate automatically coincides with the two sides of the seat, while the latter relies on the elastic groove in the middle of the gate wedge to…
Gate valve，for its low fluid resistance, a minor pressure differential, the flow direction maintenance ability, erosion endured sealing surface and flow noninterference, can be applied with a wide range of pressure and temperature. As a common block valve, it is widely used in the oil media of petroleum, chemical, fossil-fuel power plants and in the…
The double cut-off slab gate valve with diversion hole is mainly used to cut off the medium. It is a kind of pipeline valve, which is used in many industries, such as natural gas, oil, etc. Main features of slab gate valve Working principles of double block drain valve seat When the valve is closed,…
First, features of gate valve. A gate valve refers to a valve, of which the switch device (the gate) is in a vertical motion trail along the central path. It is mainly used for cutting off the media in the pipeline. The gate valve has a wide application range from the general cut-off devices with…