Butterfly Valve

Butterfly Valve Manufacturer for Industrial Flow Control Applications

We provide a comprehensive range of industrial butterfly valves designed to excel in demanding flow control applications.

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Technical Specifications

Parameter	Range / Standard
Design Standards	API 609, ASME B16.34, EN 593
Size Range	DN40 – DN2400 (1.5" – 96")
Pressure Ratings	PN6, PN10, PN16, Class 150, Class 300
Face-to-Face	API 609, ISO 5752, EN 558
Connection Types	Wafer, Lug, Flanged, Double Flanged
Testing Standards	API 598, ISO 5208

Key Features

01.

Compact & Lightweight

Streamlined design requires minimal space and simplifies installation compared to gate or ball valves.

02.

Low Pressure Drop

Optimized disc geometry ensures maximum flow capacity and reduced energy costs.

03.

Bidirectional Sealing

Engineered to maintain a bubble-tight seal regardless of flow direction.

04.

Quarter-Turn Operation

Rapid 90-degree actuation for efficient manual or automated control.

Materials & Seat Options

Choosing the right material combination is critical for valve longevity. We offer a wide array of configurations:

Body Materials: Cast Iron (GG25), Ductile Iron (GGG40/50), Carbon Steel (WCB), Stainless Steel (CF8/CF8M), Al-Bronze.
Disc Materials: Ductile Iron (Nylon/Nickel coated), SS304, SS316, Al-Bronze, Monel.

Seat Options (The Core of Sealing):

EPDM/NBR: Best for water, air, and mild chemicals (-20°C to 120°C).
PTFE (Teflon): Excellent for aggressive chemicals and food-grade applications.
VITON (FKM): High-temperature and petroleum-based fluid resistance.
Metal-to-Metal: For high-pressure steam and extreme thermal environments (Triple Offset).

Quality Control & Testing

Material Verification

Spectrometer testing of all castings to ensure chemical composition compliance.

Hydrostatic & Pneumatic Testing

Every valve undergoes shell and seat pressure tests per API 598 before shipment.

Torque Testing

Verification of operational torque to ensure compatibility with specified actuators.

Dimensional Inspection

100% check of flange dimensions and face-to-face lengths.

Traceability

Full heat number traceability for all pressure-retaining components.

Factory Capability

1

Advanced Manufacturing

Equipped with large-scale CNC machining centers and automated painting lines (Epoxy coating up to 300μm).

2

Large-Scale Production

Capacity to handle high-volume OEM/ODM orders with consistent lead times.

3

Custom Engineering

Our R&D team can provide custom stem extensions, special coatings, or unique material alloys (Duplex SS, Titanium) for niche requirements.

4

Global Logistics

Export-grade reinforced packaging with full documentation (MTC, COO, Warranty Certificates).

Our Certificate

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FAQ

Q: What is the lead time for a standard order?

A: We maintain a large stock of standard Wafer and Lug butterfly valves (DN50-DN300), which can ship within 7 days. Custom or large-diameter orders typically take 3–5 weeks.

Q: Do your valves come with international certifications?

A: Yes, we can provide CE, ISO 9001, and WRAS (for water) certificates upon request, along with full MTC 3.1 reports for each batch.

Q: Can you provide valves with pre-installed actuators?

A: Absolutely. We offer "Turnkey Flow Control" by pre-mounting and testing pneumatic or electric actuators to your specified voltage and control signal requirements.

Q: How do you ensure the seat won't blow out under high pressure?

A: Our resilient seats are designed with a "phenolic-backed" or "vulcanized" bond to the body, ensuring the seat stays rigid and prevents displacement during high-velocity flow.

We're well-known as one of the leading butterfly valve manufacturers and suppliers in China. With abundant experience, we warmly welcome you to buy bulk advanced butterfly valve from our factory. If you have any enquiry about cooperation, please feel free to email us.

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