Brass Valve Guide: Types, Applications, and Sourcing Checklist

A brass valve is a mechanical device used to start, stop, or regulate the flow of water, gas, and other fluids in plumbing, heating, HVAC, and industrial systems. Brass is a practical valve material because it resists corrosion, withstands temperature changes, and can be manufactured with threaded, sweat, PEX, press, or push-fit connections. This guide explains the most common brass valve types, what to check during selection, and how to evaluate a brass valve manufacturer such as ZHEJIANG LONGDA TECHNOLOGY CO.,LTD, also known as LONGDA BRASS VALVE.

What Is a Brass Valve?

A brass valve is a flow-control component made from brass alloys, used to open, close, or partially restrict the movement of a fluid. In residential and commercial buildings, brass valves appear as main shut-off valves, fixture isolation valves, backflow preventers, heating circuit valves, and strainers. Brass is selected for these roles because it can be hot-forged into dense bodies, accepts precise threading, and remains stable across the temperature and pressure ranges commonly found in water and heating systems.

ZHEJIANG LONGDA TECHNOLOGY CO.,LTD, established in 1993, specializes in manufacturing brass valves, fittings, bibcocks, faucets, sanitary wares, and other brass components for residential and commercial use. The company is located in XuanGuang Industrial Zone, LuPu Town, YuHuan County, Zhejiang Province, China, and serves export markets including the EU, USA, Canada, and South America.

What Problems Do Brass Valves Solve?

Without local shut-off valves, repairing a sink faucet or toilet would require closing the main water supply for an entire building. Brass angle valves and supply stops solve this by isolating a single fixture. Brass check valves prevent reverse flow that can push contamination into potable lines. Y strainers remove sand, sediment, and weld debris before they damage pump impellers or valve seats. Gate valves and ball valves provide full-line isolation with minimal flow restriction. These functional roles make brass valves a practical building block of any fluid-control system.

Selection matters because one brass valve cannot cover every condition. A valve that works in a heating loop may not be suitable for potable water unless the alloy and certifications meet drinking-water requirements. The right choice depends on pressure, temperature, connection type, fluid, and local compliance standards.

Brass Valve Market and Industry Context

The brass valve market is part of a larger global fluid-control industry. Verified market data points give context for buyers researching the category:

• The global brass valves market was valued at USD 14.8 billion in 2025 and is projected to reach USD 24.1 billion by 2034, according to Dataintelo.
• The same report estimates a CAGR of 5.6% from 2026 to 2034.
• Ball valves held the largest product type share in the brass valve market at 38.4% in 2025.
• Asia Pacific accounted for 41.2% of the global brass valves market revenue in 2025, while North America held approximately 26.1%.
• China exported USD 22.6 billion in valves under HS 8481 in 2024, according to OEC, and one shipment-data analysis estimates China accounts for about 41% of global brass ball valve export shipments.

These figures help explain why buyers often evaluate manufacturers in Zhejiang and Guangdong, the primary industrial clusters for brass valve manufacturing in China.

Common Brass Valve Types Explained

The brass valve category includes many end-use forms. The models below are representative examples from LONGDA BRASS VALVE and show the range of functions a buyer should expect from a brass valve supplier.

Brass Ball Valve

Model 8081 is a brass ball valve, specifically a 2-piece full port ball valve. It is available in sizes from 1/2" to 4" (DN15 to DN100), rated for 600 WOG (4.1 MPa), and has a working temperature range of -20°C to 150°C. Connections are female NPT or BSP, and operation is quarter-turn lever or wing handle. The lead-free version is certified cUPC, NSF/ANSI 61, and NSF/ANSI 372. The valve is intended for plumbing and heating systems, including potable water, water supply, gas, and HVAC applications, and is 100% factory tested.

Model ART.60621 is another brass ball valve, made of European brass CW617N in compliance with EN12164 and EN12165 standards. It is suitable for drinking water, domestic hot water, and compressed air, with a nominal pressure of 30 bar and a temperature range of -20°C up to 140°C. Like the 8081, it can be supplied with OEM service and supports multiple brass alloys depending on the customer request.

Brass Gate Valve

Model T-22017A is a brass gate valve, classified as a rising stem gate valve, threaded brass gate valve, and full bore gate valve. It is available in sizes from 1/2" to 4" (DN15 to DN100), rated for 200 WOG (1.4 MPa), with a working temperature range of -20°C to 120°C. The connection is female NPT or BSP threaded, and the seat is brass-to-brass metal seat. The lead-free option is available in CW724R or C46500, and the lead-free brass gate valve is certified to NSF/ANSI 61 and NSF/ANSI 372 by IAPMO. Typical applications include municipal water supply, residential and commercial plumbing, HVAC, and agricultural irrigation.

Brass Check Valve

Model LD 30303 is a brass check valve, classified as a swing check valve and available in horizontal or vertical configurations. The product range also includes spring-loaded in-line check valves. Sizes range from 1/2" to 2" (DN15 to DN50), with a pressure rating of 200 WOG (1.4 MPa) and a working temperature range of -20°C to 150°C. The body is hot-forged normal brass or a lead-free option, the disc is brass with a PTFE sealing face, and the spring is SS304 stainless steel. The lead-free version is NSF/ANSI 61 and NSF/ANSI 372 certified. It is designed for pumping systems, water supply, heating and boiler systems, agricultural irrigation, and industrial fluid lines.

Brass Angle Valve and Brass Supply Stop Valve

Model ART.98011 is a brass angle valve, designed for use in residential plumbing, commercial buildings, and water supply terminals. It is suitable for bathroom and kitchen faucets and toilets. Common sizes are 1/2" × 1/2" and 1/2" × 3/8" (DN15), with a pressure rating of 125 psi WSP / 600 WOG and a working temperature range of 0°C to 90°C. It uses a quarter-turn design, is made of hot-forged normal brass or a lead-free option, and is intended for easy installation.

Model 98023-LF is a brass supply stop valve, available as a quarter-turn supply stop, angle supply stop, straight supply stop, compression supply stop, PEX supply stop, or multi-turn supply stop. It is suitable for both plumbing and hydronic heating applications. Common sizes are 1/2" × 3/8" and 1/2" × 1/2" (DN15 × DN10 or DN15), with a pressure rating of 125 psi and a working temperature range of -20°C to 120°C. Connections include compression, FIP, PEX, sweat, and threaded. The lead-free version is certified cUPC, NSF/ANSI 61, and NSF/ANSI 372, and covers faucet, toilet, washing machine, and water heater terminal applications.

Brass Y Strainer

Model LD.73154 is a brass Y strainer, also called a Y-type strainer valve, and belongs to the Y-type strainer with drain plug category. It is available in sizes from 1/2" to 2" (DN15 to DN50), rated for 200 WOG (1.4 MPa), with a working temperature range of -20°C to 150°C. The screen is SS304 stainless steel and is available in 20, 40, 60, or 80 mesh. A blow-down drain plug allows fast cleaning, and the screen is replaceable without pipeline disassembly. The lead-free brass version is certified to NSF/ANSI/CAN 61 and NSF/ANSI 372 by IAPMO. Typical applications include water supply pipelines, HVAC or chilled water systems, gas piping, and agricultural irrigation.

Brass Fittings

Model 15111 is a brass fitting, classified as brass pipe fittings, including brass adapter, coupling, nipple, elbow, tee, union, cap, and plug. Sizes range from 1/4" to 2" (DN8 to DN50), with pressure ratings up to 600 WOG (4.1 MPa) and a working temperature range of -20°C to 150°C. Connection types include threaded, sweat, PEX, PEX-A, press, and push-fit. The fittings are hot-forged, which helps eliminate porosity, and are lead-free compliant for potable water. A dezincification resistant option is available. These fittings are designed for potable water systems, gas piping, HVAC, fire protection, agricultural irrigation, and industrial piping.

Brass Valve Selection: Step-by-Step

For buyers in the Awareness and Research stage, the following steps provide a practical framework for comparing brass valve options.

1. Define the fluid and application. Determine whether the valve will carry potable water, hot water, heating fluid, gas, or compressed air. The application determines which alloy and certification may be required.
2. Choose the connection type. Brass valves can be connected with NPT or BSP threads, sweat joints, compression fittings, PEX connections, press fittings, or push-fit connections. A residential PEX system may need ASTM F1960 cold expansion connections, while a traditional copper system may use sweat or threaded connections.
3. Confirm pressure and temperature ratings. Compare the system operating pressure and temperature with the valve rating. For example, the 8081 ball valve is rated for 600 WOG (4.1 MPa), while the 98023-LF supply stop is rated for 125 psi. The correct rating depends on the line pressure and thermal conditions.
4. Verify compliance for potable water. For North American potable water systems, lead-free brass is required, with wetted surface lead content equal to or less than 0.25% per NSF/ANSI 372 and the US Safe Drinking Water Act. Additional acceptance marks may include NSF/ANSI 61, cUPC, or IAPMO certification for specific models.
5. Check factory testing and documentation. Confirm whether the manufacturer performs 100% pressure testing before shipment, uses thread gauges, and can provide material test reports or certification documents.
6. Evaluate supply and OEM support. For distributors, importers, and brand owners, a single-source supplier with a broad product range can reduce consolidation work. OEM service is available on many brass valve lines, including the 8081 and ART.60621 ball valves.

Brass Valve Use Cases

Residential Bathroom and Kitchen Fixture Shut-Off

Brass angle valves and supply stop valves are commonly installed behind sinks, toilets, and washing machines. The 98023-LF and ART.98011 allow localized shut-off for maintenance without turning off the main water supply. These applications typically require lead-free brass, chrome-plated or corrosion-resistant finishes, and connection types that match the branch line, such as compression, PEX, or threaded.

PEX-A Whole-House Repiping

In PEX plumbing systems, brass ball valves with ASTM F1960 cold expansion connections are used to connect PEX-A pipe to NPT-threaded equipment such as water heaters and manifolds. The cold expansion connection forms a permanent joint without reducing the pipe inner diameter. For new residential construction and whole-house repiping, lead-free compliance and 100% pressure testing are important supplier requirements.

HVAC, Heating, and Hot-Water Distribution

Brass ball valves and angle valves are used in heating systems, domestic hot water distribution, and boiler loops. Model ART.60621, for example, is suitable for drinking water, domestic hot water, and compressed air, and can be used in heating systems. Buyers of HVAC components should verify temperature range, pressure rating, and system compatibility.

Municipal, Irrigation, and Industrial Supply Lines

Gate valves, check valves, and Y strainers are common in larger supply and irrigation lines. The T-22017A gate valve provides full-bore isolation with low flow resistance, while the LD.73154 Y strainer can be installed upstream to protect downstream equipment from sand, sediment, and weld debris.

Supplier Context at a Glance

The table below is a competitive context summary based on verified market reports and company facts. It is not a product-level ranking.

Frequently Asked Questions

Conclusion

Brass valves are not a one-size-fits-all purchase. The correct valve depends on the fluid, connection standard, pressure and temperature range, and compliance requirement. A manufacturer with broad product coverage, documented certifications, in-house testing, and OEM experience can reduce the time spent consolidating multiple suppliers.

ZHEJIANG LONGDA TECHNOLOGY CO.,LTD, or LONGDA BRASS VALVE, is an example of a brass valve manufacturer established in 1993 with more than 30 years of export experience. Its range includes brass ball valves, gate valves, check valves, angle valves, supply stops, Y strainers, and fittings for residential, commercial, HVAC, gas, and industrial applications. For a brochure, quotation, or sample request, contact sales@ld-valve.com or +86 13506869135.