China Brass Valves Manufacturers Suppliers Factory - Customized Brass Valves Made in China

Product Overview

Industrial brass valves regulate fluid, gas, and steam movement across commercial and mechanical systems. Forged from high-density copper-zinc alloys, these components resist mechanical shock and operational fatigue. Engineered for water, glycol, oil, and compressed air, standard configurations handle continuous operating environments up to 250°C and PN40 pressure thresholds.

Brass Flange Globe Valve
• Model: J41W-16T
• Nominal Diameter: DN15–DN100
• Nominal Pressure: 1.6MPa
• Temperature Range: ≤150℃
• Body Material: High-quality brass
view more
Brass Flange Ball Valve
Brass flange ball valve is a widely used fluid control valve, ideal for water supply, gas, oil and industrial pipeline systems. Adopting high-quality forged brass as the main material, this corrosion-resistant brass flange ball valve...
view more
Brass Flange Gate Valve
Brass flange gate valve is a core fluid control valve widely used in water supply, oil, gas and industrial pipeline systems. Made of high-quality forged brass, this corrosion-resistant brass flange gate valve adopts flange connection...
view more

Product Types, Construction, & Working Principle

Brass Ball Valves

Features a quarter-turn chrome-plated brass sphere with a PTFE seat. Provides bubble-tight shutoff and low flow resistance in open positions.

Brass Check Valves

Utilizes a spring-loaded or swing disc mechanism to permit unidirectional flow and prevent costly backflow in vertical or horizontal pipe runs.

Brass Gate Valves

Employs a wedge-shaped gate driven by a threaded stem for total isolation service in static media lines.

Working Principle

Mechanical actuation alters internal flow geometry. The stem transfers torque to the closure element, sealing against resilient elastomer or reinforced fluoropolymer seats to isolate pressure chambers.

Key Features

Forged brass bodies eliminate internal porosity common in sand castings, preventing micro-seepage under cyclic pressure loads.

Blowout-proof stems secured via internal shoulders withstand high-torque actuation without mechanical failure.

Dual Viton or PTFE stem O-rings ensure secondary atmospheric sealing, eliminating external leakage paths.
Full-port design maintains equal internal diameter to matching piping, minimizing head loss and pumping energy waste.

Technical Specifications

Parameter	Standard Specification Range
Body Material	Forged Brass (CW617N, CW602N DZR, C37700)
Size Range	1/4 inch to 4 inch (DN8 to DN100)
Pressure Rating	PN16, PN25, PN40 / 200 WOG to 600 WOG
Temperature Range	-20°C to 150°C (-4°F to 302°F)
Thread Standards	ASME B1.20.1 (NPT), ISO 228 (BSPP), ISO 7 (BSPT)
Sealing Elements	Virgin PTFE, PEEK, Viton, EPDM

Applications

HVAC Systems: Flow isolation and thermal balancing in commercial chiller loops and boiler feed networks.

OEM Machinery: Hydraulic fluid control circuits and cooling channels inside industrial injection molding presses and air compressors.

Municipal Water Infrastructure: Potable water distribution manifolds requiring low-lead compliance and dezincification resistance.

Fire Protection: Main and secondary shutoff assemblies in commercial fire sprinkler piping grids.

Manufacturing & Quality Control

01/

Hot Forging: Billets heated to 720°C and pressed at 400 tons to align grain structure and eliminate internal voids.

02/

CNC Machining: Multi-axis lathes maintain thread pitch tolerances within +/- 0.02 mm to prevent galling during site installation.

03/

Hydrostatic Testing: 100% of production batches undergo shell and seat pressure testing at 1.5x rated working pressure using automated test benches in compliance with API 598.

04/

Alloy Verification: Spectrometer material analysis confirms exact copper, zinc, and lead trace percentages prior to assembly.

Customization

Thread Customization

Special metric, NPTF, or custom flange adapters machined to client CAD drawings.

Surface Treatments

Nickel plating, chrome plating, or sandblasted raw brass finish for aesthetic or corrosive-resistance needs.

Handle Configurations

Locking lever handles, extended stem tees for insulated pipe runs, or direct-mount pads for automated actuators.

Private Labeling

Laser-etched heat codes and specific part numbers on valve bodies.

FAQ

Q: How do you prevent dezincification in aggressive water environments?

A: Utilizing DZR (Dezincification Resistant) brass alloys such as CW602N inhibits the selective leaching of zinc in soft or high-chloride water systems, preserving structural integrity over decades of operation.

Q: What is the typical lead time for custom OEM brass valve production?

A: Standard catalog items ship within 7 to 10 days. Custom forgings requiring new tooling or specialized machining take 30 to 45 days from engineering drawing sign-off.

Q: Do these brass valves comply with low-lead drinking water legislation?

A: Yes, production adheres to strict wetted surface lead content limits under 0.25% weighted average.

Q: What documentation is provided with bulk shipments?

A: Each shipment includes standard Material Test Reports (MTRs), pressure test logs, and a Certificate of Conformity.

Q: What is the minimum order quantity (MOQ) for custom-branded handles?

A: MOQ starts at 500 pieces per size for laser-etched markings and custom-color vinyl lever sleeves.

Q: What quality verification procedures are applied prior to dispatch?

A: Every production run undergoes individual shell and seat hydrostatic pressure testing alongside spectrometer alloy verification to confirm compliance with technical specifications.

Hebei Anmei Electrical Equipment Co., Ltd. is one of the most professional brass valves manufacturers and suppliers in China, specialized in providing high quality products and service. Please feel free to buy customized brass valves made in China here from our factory. Contact us for quotation.

brass flow management valve, brass industrial transfer line valve, brass plumbing valve