What is a gate valve used for: A guide for water applications
Jul. 15, 2024
What is a gate valve used for: A guide for water applications
02
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A gate valve has a simple design and can be applied in many low pressure-drop services, which makes it one of the most common valves in use today. Gate valves are designed as full-port valves. This means that the valve port is of the same size as the inner diameter of the connecting pipe. Full-bore gate valve passes the fluid flow without any obstructions to a flow and do not cause a pressure drop in a pipeline. This also allows to clean the pipe using a cleaning pig.
A resilient seated gate valve with a non-rising spindle consists of the following parts:
- wedge
- ductile iron valve body
- seating area
- stem (spindle)
- spindle bearing
- bonnet
- packing.
The body is the largest element of the gate valve. Since the spindle remains in the valve body during rotation, it allows an economical bonnet construction. The valve bonnet itself is joined to the body with bolts, which allows cleaning and maintenance. As the gate valve closes, the wedge travels down until it presses the valve seat, which would mean a complete shutoff. During the opening the wedge slides towards the upper part of the valve body.
A wedge gate valve construction did not alter a lot for the last 100 years. However, the design of some elements of the gate valve has undergone some modifications. Most of the changes are aimed at increasing the service life of the gate valve, improving the sealing characteristics, using superior quality materials and epoxy coatings for a better corrosion protection. At the same time, the modern gate valve body has a compact sleek design, allowing installations in limited space conditions. There are already 7 generations of Hawle gate valve models which have been developed in the last 70 years.
BS Resilient Seated Gate Valve
Address:
Room 902, No. 1 Qutangxia Road, Qingdao, Shandong, China
Yaxing Valve Product Page
Business Type:
Manufacturer/Factory, Trading Company
Business Range:
Manufacturing & Processing Machinery
Company Introduction:
Valves used in Hong Kong and Macau
Established in , we, Shandong Huaze Valves Co. Ltd, have the experience that large contractors rely on. More than one-third of the valves used throughout Hong Kong are from our factory. We&#;ve also supplied other large projects, including the Hong Kong International Airport, Hong Kong Disneyland, Hotel Lisboa in Macau. Furthermore, our products have passed testing conducted by the water authority of Hongkong and Malaysia, suitable for potable water.
Welflex and Hitachi also come to us
Buyers from Europe and Asia also benefit from our products. We&#;ve worked with Saint-Gobain of France for four years, Welflex of Germany for 15 years and Hitachi of Japan for 20 years. To ensure regulatory compliance, our products meet various standards such as BS, DIN and AWWA. And we are one of the few companies in the industry that comply with EN -1 and EN -2 guidelines.
Up to 30, 000 sets per month
Our facilities produce up to 30, 000 valves per month. But with the added support of more than 10 partner factories, we can handle larger orders. Our standard delivery time is in two months, but urgent orders can be finished within one month.
Benefit from 2-year warranties
Some of our testing instruments are from Japan, and our QC team tests all raw materials before they go into production. We offer two-year warranties on all of our products for your convenience. To learn more, contact one of our English- and French-speaking trade representatives today.
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What is a gate valve used for: A guide for water applications
02
A gate valve has a simple design and can be applied in many low pressure-drop services, which makes it one of the most common valves in use today. Gate valves are designed as full-port valves. This means that the valve port is of the same size as the inner diameter of the connecting pipe. Full-bore gate valve passes the fluid flow without any obstructions to a flow and do not cause a pressure drop in a pipeline. This also allows to clean the pipe using a cleaning pig.
A resilient seated gate valve with a non-rising spindle consists of the following parts:
- wedge
- ductile iron valve body
- seating area
- stem (spindle)
- spindle bearing
- bonnet
- packing.
The body is the largest element of the gate valve. Since the spindle remains in the valve body during rotation, it allows an economical bonnet construction. The valve bonnet itself is joined to the body with bolts, which allows cleaning and maintenance. As the gate valve closes, the wedge travels down until it presses the valve seat, which would mean a complete shutoff. During the opening the wedge slides towards the upper part of the valve body.
A wedge gate valve construction did not alter a lot for the last 100 years. However, the design of some elements of the gate valve has undergone some modifications. Most of the changes are aimed at increasing the service life of the gate valve, improving the sealing characteristics, using superior quality materials and epoxy coatings for a better corrosion protection. At the same time, the modern gate valve body has a compact sleek design, allowing installations in limited space conditions. There are already 7 generations of Hawle gate valve models which have been developed in the last 70 years.
BS Resilient Seated Gate Valve
Address:
Room 902, No. 1 Qutangxia Road, Qingdao, Shandong, China
Business Type:
Manufacturer/Factory, Trading Company
Business Range:
Manufacturing & Processing Machinery
Company Introduction:
Valves used in Hong Kong and Macau
Established in , we, Shandong Huaze Valves Co. Ltd, have the experience that large contractors rely on. More than one-third of the valves used throughout Hong Kong are from our factory. We&#;ve also supplied other large projects, including the Hong Kong International Airport, Hong Kong Disneyland, Hotel Lisboa in Macau. Furthermore, our products have passed testing conducted by the water authority of Hongkong and Malaysia, suitable for potable water.
Welflex and Hitachi also come to us
Buyers from Europe and Asia also benefit from our products. We&#;ve worked with Saint-Gobain of France for four years, Welflex of Germany for 15 years and Hitachi of Japan for 20 years. To ensure regulatory compliance, our products meet various standards such as BS, DIN and AWWA. And we are one of the few companies in the industry that comply with EN -1 and EN -2 guidelines.
Up to 30, 000 sets per month
Our facilities produce up to 30, 000 valves per month. But with the added support of more than 10 partner factories, we can handle larger orders. Our standard delivery time is in two months, but urgent orders can be finished within one month.
Benefit from 2-year warranties
Some of our testing instruments are from Japan, and our QC team tests all raw materials before they go into production. We offer two-year warranties on all of our products for your convenience. To learn more, contact one of our English- and French-speaking trade representatives today.
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