Rising stem gate valves

Rising stem gate valves are widely used in water supply and drainage systems, fire protection systems, and various infrastructure projects. With a design in which the valve stem is exposed, this type of valve allows operators to easily observe the open/closed status. It also ensures durable and stable performance.

The article below provides an overview of rising stem gate valves, including their structural features, key advantages, applications, and reference prices. If you want to understand more about this type of valve, this is definitely an article you should read!

What is a rising stem gate valve?

A rising stem gate valve is a type of valve used to fully open or close the flow in a pipeline system. The valve stem rises when the valve is open and lowers when the valve is closed. This allows operators to easily determine the valve’s operating status with the naked eye.

These valves are commonly used in water supply and drainage systems, fire protection systems, wastewater treatment, HVAC, and the oil and gas industry—where safety, tight sealing, and stable operation are essential.

Structure of a rising stem gate valve

A rising stem gate valve has a simple design, consisting of the following main components:

Valve body: Made of cast iron, cast steel, stainless steel, or brass. This is the main part that contains the flow and has two ports for the medium to pass through.
Gate (disc): Opens and closes the flow. It is usually in the form of a disc or flat plate that moves vertically.
Valve stem: Connects the handwheel to the gate. When the handwheel is turned, the stem moves up or down, pulling the gate along.
Bonnet: Located at the top of the body, securing the valve stem and packing.
Handwheel: A manual operating component, turned clockwise or counterclockwise.
Packing: Provides sealing to prevent leakage of the medium to the outside.

How to operate a rising stem gate valve

Operating a rising stem gate valve is generally quite simple, but it is important to follow the correct procedure to ensure safety and extend the valve’s service life.

Opening the valve:

Check: Before opening, make sure the pressure in the pipeline is not too high and that there are no obstructions around the valve.
Operate: Turn the handwheel counterclockwise. You will see the valve stem gradually rise.
Stop: Continue turning until the handwheel can no longer move. At this point, the valve is fully open, and the flow can pass through.

Closing the valve:

Check: Ensure there is no sudden pressure surge or external factors that could damage the valve.
Operate: Turn the handwheel clockwise. The valve stem will gradually lower.
Stop: Continue turning until the valve is completely closed. Do not overtighten, as this may damage the sealing gasket or internal components.

Notes when operating a rising stem gate valve

Do not overtighten

This is the most common mistake. Overtightening the valve when closing does not make it seal better; instead, it can damage the sealing gasket, deform the valve stem, and even break internal components.

Avoid partially opening the valve

For gate valves, you should operate them only in two positions: fully open or fully closed. Keeping the valve partially open for a long period causes strong turbulent flow, which wears down the gate and valve body, leading to leakage and reducing the valve’s lifespan.

Perform regular maintenance

Regularly inspect and lubricate moving parts, especially the valve stem and threads, to ensure smooth operation.

Ensure proper installation

Make sure the valve is installed vertically, aligned correctly with the flow direction (if an arrow is indicated), and not tilted, to prevent damage during operation.

Rising Stem Gate Valve Price List (Reference from Various Brands)

The price of rising stem gate valves depends on many factors, such as brand, size, material, working pressure, and connection standards. Below is a reference price list for some popular brands on the market:

Brand / Type	Size (DN)	Material	Working Pressure	Reference Price (VND)
AUT Rising Stem Gate Valve	DN50 (2″)	Ductile Iron	PN16	800,000 – 1,200,000
ARV Rising Stem Gate Valve	DN100 (4″)	Ductile Iron	PN16	1,800,000 – 2,500,000
KITZ Rising Stem Gate Valve	DN200 (8″)	Cast Steel	PN25	15,000,000 – 20,000,000
SHIN YI Rising Stem Gate Valve	DN150 (6″)	Ductile Iron	PN10/PN16	5,000,000 – 6,000,000
ROBO Rising Stem Gate Valve	DN250 (10″)	Ductile Iron	PN10/PN16	12,000,000 – 13,500,000

The prices above are not fixed and may vary over time. They also do not include VAT or shipping fees. To get a quotation for rising stem gate valves, please contact Bảo Tín Steel immediately:

Key Advantages of Rising Stem Gate Valves

This type of gate valve has several notable advantages:

The valve stem rises when open and lowers when closed.
The valve has minimal leakage, ensuring system safety.
Mainly made of ductile iron, steel, or corrosion-resistant stainless steel, capable of withstanding high pressure.
Available in a wide range of sizes from DN50 to DN600, suitable for various projects.
Simple construction makes it easy to disassemble and replace parts.

Applications of Rising Stem Gate Valves

Rising stem gate valves have a very wide range of applications:

Water supply and drainage systems: Control the flow of water in residential and industrial pipelines.
Fire protection systems (FSS): Installed on fire-fighting pipelines to ensure a reliable water supply.
Wastewater treatment systems: Regulate wastewater flow in treatment plants and industrial zones.
HVAC systems: Used in heating, ventilation, and air conditioning applications.
Oil and gas industry: Open and close the flow of crude oil and gas in large pipelines.

Bảo Tín Steel – Supplier of Rising Stem Gate Valves at Competitive Prices

Currently, many companies distribute rising stem gate valves. Among them, Bảo Tín Steel is highly regarded. Bảo Tín Steel is known as an importer and distributor of steel products such as steel pipes, steel tubes, steel profiles, steel plates, various pipeline accessories, valves, and fire protection equipment.

Rising stem gate valves are also among the products distributed by BTS. We offer valves from multiple brands and in a wide range of sizes, meeting the requirements of various pipeline systems.