Why is it necessary to install and set up an air vent in a water supply pipe? Air venting valves are essential for pipelines as they are used to quickly remove gas from the pipeline, to improve the efficiency of water conveyance equipment and to protect the pipeline from deformation and rupture. It is installed at the outlet of the pump or in the water distribution line to remove a large amount of air from the pipe to improve the efficiency of the water pipe and pumping machine, and in case of negative pressure in the pipe, the valve can quickly suck in air to keep the line damaged by negative pressure. When the pump stops working, negative pressure will be generated at any time and the float will drop at any time to ensure the safety of the pipeline by sucking in a large amount of air. When the air is discharged, the float pulls down one end of the lever due to gravity, when the lever is in a tilted state, a gap appears in the contact part of the lever and the air discharge hole. The air is discharged through this gap by the...
Introduction If you’re getting a new pipe installed, you might have noticed there are different types of valves available. Some of them are much easier to install than others. In this article, we’ll walk you through the process of installing a lug butterfly valve—a type that’s designed to be easy and quick. 1. Disconnect the power. In order for you to safely install a lug butterfly valve, you will need to disconnect the power. This is because the lug butterfly valve is water and electrical hazard. To be safe, you should completely shut down any power to the valve and make sure all water connections are unplugged from their respective valves. 2. Unscrew the lug valve from the pipe. You can use various types of wrenches to unscrew the lug valve from the pipe. The most common options are: ①A wrench with a single handle that turns in either direction ②A wrench with two handles, one on each end (this is sometimes called a “combination” or “offset” wrench) ③A crescent wrench, which has the same shape as a pipe wrench except it’s small and can fit into tight spaces You may also be able to use ratcheting wrenches, which have...
Introduction: A butterfly valve, also called a flap valve, is a simple structure of the regulating valve, that can be used for low-pressure pipeline media switch control of the butterfly valve refers to the closing member (valve flap or butterfly plate) for the disc, rotating around the valve shaft to achieve the opening and closing of a valve. The valve can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil, liquid metal, and radioactive media. The pipeline mainly plays a cutting-off and throttling role. The butterfly valve opening and closing member is a disc-shaped butterfly plate, which rotates around its own axis in the valve body to open and close or regulate the purpose. The butterfly valve is usually less than 90° from fully open to fully closed, and the butterfly valve and the butterfly stem itself have no self-locking ability, so for the positioning of the butterfly plate, a worm gear reducer is added to the stem. The use of a worm gear reducer can not only make the butterfly plate have the self-locking ability and make the butterfly plate stop at any position, but also improve...
Introduction: The wafer-type metal seat butterfly valve is one of the most commonly used valves in industrial applications. The unique design of this valve allows for easy installation and maintenance. It has a large area for disc movement, which makes it possible to control flow with less effort compared to other types of butterfly valves. Wafer Type Metal Hard Seal Butterfly Valve Usage: Clamped hard seal butterfly valve with precision J-shaped elastic seal ring and three eccentric multi-level metal hard seal structure, is widely used in the medium temperature <425 ℃, gold, electric power, petrochemical, as well as water supply and drainage and municipal construction and other industrial pipelines, for the regulation of flow and fluid cut-off use. The main features of the wafer-type hard seal butterfly valve The main features of the clamp-on hard seal butterfly valve are suitable for various different media such as water, steam, oil, air, gas, etc. The main features of the clamp-on hard seal butterfly valve are: 1. The butt-clamp metal multi-level sealing butterfly valve butt-clamp connection structure is simple, easy to install and disassemble, and heavy star by its characteristics. Metal hard seal butterfly valve adopts three eccentric sealing structures, the seat and...
Butterfly valve selection, first of all, according to successful engineering practice, relevant laws, and regulations, choose the appropriate structure, material, and pressure level to ensure that the butterfly valve is safe and reliable. Structure type ①The flow characteristics of the butterfly valve are approximately linear, whether it is midline type or eccentric type, the difference is not very big. The midline type is suitable as a regulating and small diameter process valve. ②How to choose double eccentric and triple eccentric butterfly valves, both structures have the characteristics of being able to disengage quickly and close tighter and tighter, so how to choose the two structures? As a soft seal with double eccentric, it is more convenient in processing and manufacturing. The triple eccentric is more complicated to process and manufacture, but it is more prominent in the tightening characteristics, and it is not easy to produce interference, so it is more suitable for metal hard seals. At present, there is no comprehensive analysis in the market, that what is recommended to use three eccentric metal hard seal is not right, especially on the large-diameter room temperature water system is recommended use, there is no need. Because the metal hard seal...
How does the electric butterfly valve work? The electric butterfly valve is composed of an electric actuator and butterfly valve, so it has the advantages of easy operation and simple structure of butterfly valve and is also widely used in chemical, pharmaceutical, and other industries. And because of the assistance of electric actuators, the development of butterfly valves has reached a new level. The working principle of the electric butterfly valve: The valve stem is driven by the electric device to make the butterfly plate produce a 90° rotary motion to achieve the opening and closing of the valve. The principle of the electric actuator is actually very simple. Just like a razor used in daily life, the energy source is electricity, and the electricity drives the operation of the valve plate, so as to open and close the valve and circulate or cut off the fluid. The electric actuator of the electric butterfly valve can be divided into switch type and adjustment type. The switch type electric butterfly valve plays the role of a switch; and the adjustment type electric butterfly valve plays the role of regulating the flow, which can accurately adjust the flow to thousands of degrees....
Features: Worm gear operated flange butterfly valve: Single Eccentric Disc-Shaft Anti-Blow Out Stem Bi-Directional Fire safe Design Low Friction Body Seat Zero Leakage Adoptive Standards: Worm gear operated flange butterfly valve: Valve Design: API 609, MSS SP-67 Face To Face: API 609, MSS SP-67, DIN3202, BS EN558-1 Pressure Test: API 598 Flange Drilling: ANSI B16.1 class125, BS4504 PN10/PN16, DIN2501 PN10/PN16 Top Flange: ISO5211 Product Advantage: 1.The valve body and disc are all adopted QT450-10 material, the ball rate is above grade 3, the mechanical performance is fully up to standard, the tensile strength is 450Mpa, and the elongation rate is more than 10%. It is not easy to crack or freeze. 2.The valve body is solid body, the same caliber weight is heavier than other manufacturers. 3.Seat uses standard EPDM rubber, making the butterfly valve’s resilience and tension super stable and reliable, opening and closing more than 10,000 times without leakage. 4.The valve body uses an electrostatic powder thermal spraying process with a spray thickness of 250μm. The valve body is heated at 200°C for 3 hours, and the powder is cured at 180°C for 2 hours. After natural cooling, the surface adhesion is increased by 2 times...
Adoptive Standards Valve Design: API 609, MSS SP-67 Face To Face: API 609, MSS SP-67, DIN3202, BS EN558-1 Pressure Test: API 598 Flange Drilling: ANSI B16.1 class125, BS4504 PN10/PN16, DIN2501 PN10/PN16 Top Flange: ISO5211 Product Advantage 1.The length of the short structure can save raw materials and installation space, and also effectively support the strength of the pipeline. 2.The valve block is the correct movement of the gate, extrusion fast, to ensure effective sealing valve. 3.Triangle support material, guarantee the required mechanical properties. 4.According to different working conditions demand design V, triangle, or five corners and other ports, in order to meet the needs of various flow regulation. 5.No groove at the bottom to make sure no slag and full bore flow. 6.wesdom valve strict implementation of the API598 experimental standard, for each product to implement 100% positive and negative double pressure test, guarantee delivery to customers is 100% qualified products. 7.wesdom Group dedicated to the dedication of the valve for 20 years, with professional production, sales, research and after-sales team,we are your strong backing. Parameters SIZE A B C L ANSI 150B DIN PN 10 DIN PN 16 JIS 10K ISO 5211 Top Flange mm in øK N-M øK...
1.5 times the working pressure with water. This test is performed after valve assembly and with disc in half position open, it is called as a body hydro test.
Adoptive Standards: Valve Design: API 609, MSS SP-67 Face To Face: API 609, MSS SP-67, DIN3202, BS EN558-1 Pressure Test: API 598 Flange Drilling: ANSI B16.1 class125, BS4504 PN10/PN16, DIN2501 PN10/PN16 Top Flange: ISO5211 Features: Three Eccentric Design Stainless Steel sealing, good sealing performance with both low temperature and high temperature, anti-corrosive, long life Sealing seat anti-frictional and long life Bi-Directional Fire safe Design Low Friction Body Seat Zero Leakage Body Test: 1.5 times the working pressure with water. This test is performed after valve assembly and with disc in half position open, it is called as a body hydro test. Seat Test: 1.1 times the working pressure with water. Function / Operation Test: At the time of final inspection, each valve and its actuator (Flow-Control Lever / Gear / Pneumatic Actuator), under goes a complete operating test (Open/Close). This test carried out without pressure and at ambient temperature. It ensures the correct operation of the valve / actuator assembly with accessories such as solenoid valve, limit switches, air filter regulator etc. Special Test: On request, any other test can be carried out according to special instruction by client. Parameters Inch L H D373H D373Y D673H D973H 0.6MPa 1.0MPa...
