Brass Gate Valve DN15-DN100: Specifications, Types & Product Series Guide

When selecting a brass gate valve for plumbing, water supply, or HVAC applications, professional buyers usually need to evaluate more than just the product appearance.

Important factors include:

· Valve structure

· Size range

· Material selection

· Pressure rating

· Connection standard

· Application requirements

· Manufacturing capability

For importers, distributors, and engineering companies, understanding these specifications helps reduce purchasing risks and ensures the selected valve matches the requirements of the final project.

SHUANGLIN VALVE manufactures brass gate valves with concealed stem designs, providing valve solutions for water supply systems, plumbing applications, HVAC projects, and other pipeline systems.

This guide explains the key specifications of brass gate valves from DN15 to DN100, introduces different gate valve types, and helps buyers understand how to select a suitable brass gate valve supplier.

What Is a Brass Gate Valve?

A brass gate valve is a shut-off valve designed to control fluid flow by moving an internal gate vertically inside the valve body.

Unlike control valves that are mainly used for flow adjustment, gate valves are generally designed for fully open or fully closed operation.

When the valve is fully opened, the internal gate moves away from the flow passage, allowing fluid to pass through with low flow resistance.

When the valve is closed, the gate moves downward to block the pipeline and stop fluid flow.

Brass gate valves are commonly used in:

· Residential water supply systems

· Commercial plumbing systems

· Heating pipelines

· HVAC applications

· General water control systems

Due to their reliable shut-off performance and wide application range, brass gate valves remain a common choice for pipeline isolation applications.

Brass Gate Valve Structure: Concealed Stem Design

SHUANGLIN VALVE brass gate valves use a concealed stem structure, also known as:

· Brass non-rising stem gate valve

· Brass hidden stem gate valve

In this design, the valve stem does not move upward outside the valve body during operation.

Compared with rising stem gate valves, concealed stem gate valves provide a more compact structure and are suitable for applications where installation space is limited.

The main components of a brass gate valve include:

Valve Body

The valve body is the main pressure-bearing component of the valve.

For SHUANGLIN VALVE brass gate valves, the valve body is manufactured using HPb59-1 brass, providing suitable strength and corrosion resistance for water-related applications.

Valve Stem

The valve stem connects the handle mechanism with the internal gate.

The valve stem is manufactured using HPb59-1 brass to ensure reliable operation during repeated opening and closing.

Valve Cover

The valve cover provides protection and sealing support for internal components.

SHUANGLIN VALVE uses HPb59-1 brass for the valve cover according to product design requirements.

Gate and Compression Cap

Different valve components have different functional requirements.

The gate and compression cap use HPb57-3 brass, balancing manufacturing requirements and product performance.

Using different brass alloys for different components is a common manufacturing approach in valve production, allowing manufacturers to optimize material selection according to each part's function.

Brass Gate Valve DN15-DN100 Specification Guide

SHUANGLIN VALVE brass gate valves are available in sizes from:

DN15 to DN100

This size range covers various pipeline applications, from smaller residential plumbing systems to larger commercial and industrial water supply projects.

The correct valve size depends on:

· Existing pipeline diameter

· Required flow capacity

· Installation conditions

· System design requirements

Brass Gate Valve Technical Specifications

Pressure Rating and Factory Testing

Pressure rating is one of the most important specifications when selecting brass gate valves.

Nominal Pressure: PN16

SHUANGLIN VALVE brass gate valves are designed with a nominal pressure rating of:

PN16

This means the valve is suitable for pipeline systems requiring a rated pressure level of 16 bar under specified conditions.

Factory Pressure Testing

Before shipment, valves undergo pressure testing to verify sealing performance and reliability.

During factory testing, SHUANGLIN VALVE brass gate valves can be tested under pressure conditions up to:

25 bar

The purpose of pressure testing is to confirm:

· Valve sealing performance

· Product reliability

· Manufacturing consistency

The test pressure is different from the rated working pressure. Buyers should always select valves according to actual system requirements.

Connection Standards: BSP and NPT Threads

Thread standard is an important consideration for international valve purchasing.

SHUANGLIN VALVE brass gate valves can be supplied with different thread options according to customer requirements.

BSP Thread

BSP (British Standard Pipe) threads are widely used in many markets, including:

· Europe

· Asia

· Middle East

· Other international plumbing markets

NPT Thread

NPT (National Pipe Thread) is commonly used in North American markets and applications following US thread standards.

Before ordering brass gate valves, buyers should confirm:

· Local installation standards

· Customer requirements

· Pipeline connection compatibility

Selecting the correct thread standard helps prevent installation issues after delivery.

SHUANGLIN VALVE Brass Gate Valve Series

Brass gate valves are not limited to one standard design. Different applications may require additional functions such as operation control, backflow prevention, or installation flexibility.

SHUANGLIN VALVE provides different brass gate valve solutions to meet various market requirements.

Standard Brass Gate Valve

The standard brass gate valve is designed for general shut-off applications in water supply and plumbing systems.

It provides a practical solution for distributors and contractors requiring reliable pipeline isolation.

Mechanical Lock Gate Valve

Mechanical lock gate valves include a locking structure that helps control valve operation.

They are suitable for applications where unauthorized operation needs to be limited.

Magnetic Lock Gate Valve

Magnetic lock gate valves use a magnetic locking mechanism for controlled operation.

This type of valve is commonly used in water management applications where access control is required.

Gate Valve with Check Valve

A gate valve with check valve combines shut-off and backflow prevention functions in one product.

This design can simplify pipeline installation by integrating two functions into a single valve.

Quick Opening Gate Valve

Quick opening gate valves are designed for applications where faster manual operation is required.

They provide an alternative solution compared with conventional gate valve operation.

Expansion Gate Valve

Expansion gate valves provide additional flexibility for pipeline installation.

They can be used in systems where installation adjustment or connection flexibility is important.

Union Gate Valve

Union gate valves feature a detachable connection design.

This structure can make installation and maintenance more convenient, especially in systems requiring easier valve replacement.

Lockable Gate Valve with Check Valve

Lockable Gate Valve with Check Valve combines locking functionality with backflow prevention.

It is suitable for applications requiring both operation control and flow protection.

Applications of Brass Gate Valves

Brass gate valves are widely used in different pipeline systems.

Residential Water Supply

Common applications include:

· Household water pipelines

· Building water systems

· Water control points

Commercial Plumbing Systems

Used in:

· Commercial buildings

· Plumbing projects

· Water distribution systems

HVAC and Heating Systems

Brass gate valves can also be applied in:

· Heating water circulation systems

· HVAC pipeline connections

· Equipment isolation applications

How to Choose the Right Brass Gate Valve?

Professional buyers usually consider several factors before selecting a brass gate valve.

1. Confirm Valve Structure

Different applications may require different designs.

For SHUANGLIN VALVE products, concealed stem gate valves provide a compact solution for many plumbing applications.

2. Confirm Size Requirements

Select the correct DN size according to:

· Pipeline dimensions

· Installation requirements

· Flow requirements

3. Confirm Material Specifications

Different valve components may use different brass materials according to their functions.

Professional suppliers should provide clear material information.

4. Confirm Pressure Requirements

Buyers should compare:

· System working pressure

· Valve nominal pressure

· Testing requirements

5. Select a Reliable Brass Valve Manufacturer

A reliable supplier should provide:

· Stable production capability

· Clear technical information

· Quality inspection procedures

· Flexible OEM support

Why Choose SHUANGLIN VALVE for Brass Gate Valves?

SHUANGLIN VALVE is a brass valve manufacturer providing standard and customized valve solutions for global customers.

Our brass gate valve products include:

· Concealed stem brass gate valves

· Mechanical lock gate valves

· Magnetic lock gate valves

· Gate valves with check valves

· Customized gate valve solutions

We support customers with:

Standard Product Supply

For standard brass valve products:

· No MOQ requirement

· Shipment within 7 days

This helps distributors and importers purchase flexibly according to market demand.

OEM and Custom Manufacturing

For customized brass valve projects:

· MOQ depends on product type and size requirements

· Typical MOQ is around 3,000-5,000 pcs/model

· Production lead time is around 35 days

SHUANGLIN VALVE supports customers from product discussion and technical confirmation to final production.

Frequently Asked Questions About Brass Gate Valves

What is a concealed stem brass gate valve?

A concealed stem brass gate valve is a gate valve design where the stem does not rise outside the valve body during operation. It provides a compact structure suitable for many plumbing applications.

What sizes are available for brass gate valves?

SHUANGLIN VALVE brass gate valves are available from DN15 to DN100 according to different product models and requirements.

What materials are used for brass gate valves?

Different components use different brass materials. The valve body, valve stem, and valve cover use HPb59-1 brass, while the gate and compression cap use HPb57-3 brass.

What is the pressure rating of brass gate valves?

The nominal pressure rating is PN16. Factory pressure testing can reach up to 25 bar to verify sealing performance.

Does SHUANGLIN VALVE provide OEM brass gate valves?

Yes. SHUANGLIN VALVE provides OEM and customized brass valve manufacturing solutions for distributors, importers, and brand owners.