Valve

Industrial Valve Manufacturer & Supplier

We supply heavy-duty industrial valves engineered for municipal water supply, fire protection, HVAC systems, and industrial fluid pipelines. Our product portfolio includes gate valves, ball valves, check valves, pressure reducing valves, and float valves manufactured in compliance with international standards, featuring rigorous pressure testing and precision-machined sealing faces.

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Product Range

01/

Gate Valves & Butterfly Valves
Types: Flanged Non-Rising Stem Gate Valves, Resilient Seated Gate Valves, Lug/Wafer Butterfly Valves.
Key Features: Full-bore flow path, EPDM/NBR encapsulated wedge, low operational torque, corrosion-resistant stainless steel stems.
Pressure / Size Range: PN10 to PN25; DN50 to DN1200.

02/

Industrial & Screwed Ball Valves
Types: Flanged Industrial Ball Valves for Water Supply, High-Pressure Screwed Ball Valves with Locking Handles, 2-Piece / 3-Piece Stainless Steel Ball Valves.
Key Features: Blowout-proof stem design, PTFE seats for low friction, quarter-turn operation, locking handle provisions for safety.
Material & Finish: Ductile Iron, Stainless Steel (304/316), Brass body options.

03/

Pressure Reducing & Control Valves
Types: Pneumatic Pressure Reducing Valves, Lever-Type Pressure Reducing Valves, Spring Diaphragm & Piston-Type Pressure Reducing Valves, Bellows-Type Direct-Acting Steam Regulators.
Key Features: Automatic downstream pressure stabilization under varying inlet pressures, precise diaphragm/piston response, internal pilot control.

04/

Float Liquid Level Valves
Types: Corrosion-Resistant Float Ball Valves, Adjustable Mechanical Water Tank Float Valves, Large-Diameter Flanged Water Tower Float Valves.
Key Features: Pure buoyancy-driven mechanical control (no external power required), drip-tight shutoff, adjustable water level range options.

Materials & Technical Specifications

Parameter	Ductile Iron (EN-GJS-500-7)	Stainless Steel (CF8 / CF8M)	Forged Brass (CW617N)
Body & Cover Material	Ductile Iron GGG50	ASTM A351 CF8 / CF8M (304 / 316)	Brass Alloy
Nominal Pressure (PN)	PN10 / PN16 / PN25 / PN40	PN16 / PN40 / Class 150–300	PN16 (Threaded)
Working Temperature	-10°C to +120°C	-29°C to +250°C	-10°C to +95°C
Connection Standard	Flanged to EN 1092-2 / ISO 7005-2	Flanged (ASME B16.5) / Threaded	Female Thread (BSPT / NPT)
Sealing Material	EPDM / NBR / Brass-to-Brass	PTFE / RPTFE / Stellite Hardfacing	EPDM / PTFE
Primary Application	Municipal Water, Fire Protection, HVAC	Chemical Lines, Industrial Wastewater	Domestic Water, HVAC Branch Lines

Standards & Quality Control

Our manufacturing facility operates under ISO 9001:2015 quality management systems. Every individual valve undergoes shell and seat hydrostatic pressure testing prior to factory dispatch in accordance with ISO 5208 / EN 12266 test standards.
[Raw Material Spectrometry] ➔ [Sand/Precision Casting & Forging] ➔ [CNC Lathe Machining & Threading] ➔ [Assembly & Gasket Fitting] ➔ [100% Hydrostatic Pressure Testing] ➔ [Epoxy Powder Coating & Packaging]

In-House Testing Capabilities
Shell Hydrostatic Test: Tested at 1.5 x rated working pressure to verify structural integrity and wall thickness safety.

Seat Leakage Test: Tested at 1.1 x rated pressure using water or air to ensure zero bubble leakage across closure members.

Coating Thickness Inspection: Electrostatic fusion-bonded epoxy (FBE) powder coating measured with magnetic gauges (>= 250 um) for internal and external corrosion protection.

Dimensional & Torque Verification: Calibrated torque testing for smooth manual or actuated valve cycling.

Flanged Industrial Ball Valve For Water Supply

Customization & Supply Options

Actuation Options

Bare shaft valves, manual handwheels, gearboxes, ISO 5211 direct-mounting pads for pneumatic or electric actuators.

End Connections

Customized drilling patterns (ANSI B16.5, DIN, BS Table D/E), face-to-face dimension adjustments to fit existing pipe layouts.

Special Coatings

WRAS-approved potable water epoxy coatings, high-temperature paint systems, or marine-grade anti-corrosion finishes.

Export Packaging

Fumigation-free plywood cases or heavy-duty wooden pallets secured with steel strapping and moisture-barrier film.

Our Factory

FAQ

Q: How do you verify that the valves will not leak internally during service?

A: Every single valve undergoes 100% factory pressure testing in accordance with ISO 5208 standards. We test both the valve body (shell test) and the seating interface (seat leakage test) using hydraulic test benches to ensure bubble-tight closure before packing.

Q: What is the difference between non-rising stem and rising stem gate valves?

A: A non-rising stem gate valve keeps the stem stationary while the gate travels up and down inside the body, requiring less vertical clearance, making it ideal for underground or space-restricted municipal applications. A rising stem gate valve moves upward with the gate, providing a clear visual indication of open/closed status.

Q: Can your flanged valves be fitted with electric or pneumatic actuators?

A: Yes. Most of our industrial gate, butterfly, and ball valves feature standard ISO 5211 top mounting flanges and square stems, allowing direct mounting of quarter-turn or multi-turn pneumatic and electric actuators without custom brackets.

Q: What coating is used for valves installed in potable water applications?

A: For drinking water and municipal water supply lines, we apply non-toxic fusion-bonded epoxy (FBE) powder coating that complies with hygienic safety standards and resists bacterial growth and mineral scaling.

Q: What is the standard lead time and minimum order quantity (MOQ) for regular sizes?

A: For standard stock sizes (DN50 to DN300 in PN16), regular orders ship within 15 to 25 days. MOQ depends on the model, typically starting from 10 to 50 pieces per size, or mixed items filling a standard 20ft container.

Q: What documentation is supplied with each shipment?

A: Each shipment includes a Manufacturer’s Test Certificate (EN 10204 3.1) detailing material heat numbers, chemical composition analysis, and individual pressure test results. Third-party inspection reports (SGS, BV, TÜV) can also be provided upon request.

Request a Technical Quote

Need standard flanged valves, pressure regulators, or custom OEM flow control solutions for your next pipeline project? Send your technical specifications and quantity requirements to our engineering team.
Email: anzhiyuan@yhmadeinprc.com.cn
Engineering Response: Within 24 hours (including drawing review and specification sheets)
Required Info for Fast Quoting: Valve Type, Size (DN), Pressure Rating (PN/Class), Working Medium, Operating Temperature, and Quantity.

We're well-known as one of the most experienced valve manufacturers in China. With a professional production team, we are able to meet the needs of the majority of our customers. Welcome to buy discount valve in stock here from our factory. Contact us for pricelist and free sample.