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Products
High Performance Butterfly Valve
✧ Description
Our High Performance Butterfly Valve is a double‑offset (double eccentric) quarter‑turn valve designed for reliable on/off and throttling service. It delivers bubble‑tight shutoff, low operating torque, and a long service life – a cost‑effective alternative to ball or plug valves.
As a professional butterfly valve manufacturer, we offer sizes from 2″ to 48″ (DN50–DN1200), pressure classes 150, 300, and 600, with wafer, lug, or flanged connections.
✧ Why Choose This High Performance Butterfly Valve?
• Double offset design – Disc lifts off the seat within 7°, minimizing wear and reducing torque.
• Bidirectional sealing – PTFE, RTFE, or metal seats ensure zero leakage (Class VI).
• ISO 5211 mounting pad – Direct actuator installation without extra brackets.
• Materials – WCB carbon steel, CF8/CF8M stainless steel, duplex, and alloy options.
• Temperature range – PTFE seats: -29°C to 200°C; metal seats: -196°C to 550°C.
✧ Technical Specifications (Brief)
| Parameter | Details |
|---|---|
| Standards | API 609, ASME B16.34, ISO 5752 |
| Sizes | DN50 – DN1200 (2″ – 48″) |
| Pressure | Class 150, 300, 600 |
| End types | Wafer (most economical), Lug, Flanged |
| Seat types | PTFE, RTFE, metal‑to‑metal |
| Leakage | ANSI/FCI 70‑2 Class VI |
✧ Key Applications
• Oil & gas (refinery, pipelines)
• Chemical & petrochemical
• Power generation (cooling water, steam)
• Water & wastewater treatment
• HVAC, pulp & paper, marine
✧ High Performance Butterfly Valve Price – What to Expect
The price of a high performance butterfly valve depends on:
• Size & pressure class – Larger and higher‑class valves cost more.
• Material – Stainless steel or duplex adds 40‑100% over carbon steel.
• Seat type – Metal seats are 30‑50% higher than PTFE seats.
• End connection – Wafer is 20‑40% cheaper than flanged.
• Actuation – Manual lever (lowest), gear operator (+15‑25%), pneumatic/electric (+40‑120%).
✧ Indicative Price Range (Class 150, Wafer, WCB, PTFE, lever)
| Size | Approx. Price (USD) |
|---|---|
| DN50 (2″) | $85 – $120 |
| DN100 (4″) | $130 – $180 |
| DN150 (6″) | $180 – $250 |
| DN200 (8″) | $250 – $350 |
| DN300 (12″) | $450 – $620 |
Note:
1. For Class 300, stainless steel body, or actuated valves, request a custom quote.
2. The High-performance Butterfly Valves Price above will be changed depending on raw material prices and order quantity. Please Contact Our Sales Team for accurate pricing.
✧ Why Buy from Us? – Trusted Manufacturer
• Certified quality – API 598 hydrostatic and seat testing, material traceability.
• Competitive price – Direct factory pricing with no middlemen.
• Customization – OEM/ODM available for special materials and actuation.
• Global shipping – Fast lead times and after‑sales support.
✧ After Sale Service
As a professional forged steel valve manufacturer and exporter, we promise to provide customers with high-quality after-sales service, including the following:
1.Provide product usage guidance and maintenance suggestions.
2.For failures caused by product quality problems, we promise to provide technical support and troubleshooting within the shortest possible time.
3.Except for damage caused by normal use, we provide free repair and replacement services.
4.We promise to respond quickly to customer service needs during the product warranty period.
5. We provide long-term technical support, online consulting and training services. Our goal is to provide customers with the best service experience and make customers' experience more pleasant and easy.
✧ Get a Price Quote Today
✧ Knowledge of High-performance Butterfly Valves - NSW Valve Manufacturer Engineer Team
High Performance Butterfly Valves feature polymer compound seats with unlimited life expectancy and very high chemical resistance - few chemicals are known to affect fluorocarbon-based polymers, making these products attractive for industrial valve applications. Its quality surpasses that of rubber or other fluorocarbon polymers in terms of pressure, temperature and wear resistance.
• Valve High Perfermance Design
The stem of a High Performance Butterfly Valve is off-center on two planes. The first offset comes from the center line of the valve, and the second offset comes from the center line of the pipe. This causes the disc to detach completely from the disc at the very few operating degrees away from the seat. Look at the render below:
• Valve Seat Design
With respect to the seat, as mentioned earlier, the rubber lined valve is closed by squeezing into the rubber sleeve. High Performance Butterfly Valve G seat design. The figure below describes how seating is affected in 3 scenarios:
1. After assembly:
When assembled under no pressure, the seat is powered by the butterfly plate. This allows bubble sealing from the vacuum level through the valve's maximum pressure rating.
2. Axial pressure:
The G-seat profile creates a tighter seal as the plate moves. The insertion design reduces excessive seat movement.
3. Pressure on the insertion side:
The pressure turns the seat forward, amplifying the sealing force. Insertion into the bending area is designed to allow seat rotation. This is the preferred mounting direction. The seat of a High Performance Butterfly Valve has a memory function. The seat returns to its original shape after loading. The ability of the seat to recover is defined by measurements of permanent deformation of the seat. Lower permanent deformation means that the material has better memory - it is less prone to permanent deformation when a load is applied. As a result, low permanent deformation measurements mean improved seat recovery and longer seal life expectancy. This means improved sealing under pressure and thermal cycling. Deformation is affected by temperature.
• Stem Packing and Bearing Design
The final point of comparison is the seal that prevents external leakage through the stem area.
As you can see below, rubber-lined valves have a very simple, non-adjustable stem seal. The design uses a stem bushing to center the shaft and 2 rubber U-cups to seal the medium to prevent leaks. No adjustments are made to the sealed area, which means that if a leak occurs, the valve must be removed from the line and repaired or replaced. The lower shaft area has no stem support, so if the particles migrate to the upper or lower shaft area, the drive torque rises, resulting in difficult operation.
The High Performance Butterfly Valves shown below are designed with fully adjustable packing (shaft seal) to ensure long service life and no external leaks. If a leak occurs over time, the valve has a fully adjustable packing gland. Only turn the nut ring at a time until the leak stops.
