What types of valves does KR Valve manufacture?

KR Valve manufactures more than 500 valve products, including wafer, lug, concentric and double eccentric butterfly valves, resilient seat, metal seat and knife gate valves, dual disc, swing, lift and ball type check valves, ball valves, hydraulic water control valves such as 200X pressure reducing valves and 100X remote float valves, and Y type strainers.

Which international standards do KR valves follow?

Our range covers common international standards such as DIN F5 face-to-face gate valves, BS5163 resilient seat gate valves, BS5153 dual disc check valves, ANSI flanged strainers and PN16 pressure rated water control valves. Non-standard designs can be engineered to your drawings.

Do you offer OEM valve manufacturing?

Yes. In addition to our own KR brand, we provide OEM services, including customer branding, specified body and seat materials, actuation options and project-specific packaging.

Should I choose a wafer or a lug butterfly valve?

Wafer butterfly valves are lighter and more economical and are clamped between two flanges, making them ideal for standard water and HVAC lines. Lug butterfly valves have threaded lugs that allow dead-end service and removal of downstream piping without draining the whole line, which suits maintenance-critical systems.

How is valve quality controlled before shipment?

Every process is inspected from raw material to finished product, and 100% of finished valves are inspected before dispatch. Production plans and lead times are defined upfront through full-chain supply control.

Wholesale Hydraulic cylinder control butterfly valve quick closing adjusting type Supplier, Suppliers

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Wholesale Hydraulic cylinder control butterfly valve quick closing adjusting type Supplier, Suppliers

Type：Double eccentric type

Series：D342X

Size: DN200-DN3000/4”-120”

Pressure rating: PN6/PN10/PN16/5K/10K/150LB

Design standard: EN/DIN/API

Service: OEM&ODM

The valve body of eccentric butterfly valve has a compact structure, low opening and closing torque, and a tight and wear-resistant seal; Adapt to large-diameter, pipeline pumping stations, water conservancy power stations, fire emergency, and oil and chemical pipelines to achieve safe and rapid cutoff and emergency protection.

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Product Description

Description Material Dimension

Valve Type	Eccentric butterfly valve	Structure	Eccentric
Standard	EN/DIN/API	Workmanship	Investment casting
Sealing direction	Single-directional	Sealing grade	Zero leakage
Temperature	-20°C<T<120°C	Operation	Hydraulic control

Characteristics

The cylinder controlled quick-closing butterfly valve is driven by a hydraulic cylinder with an eccentric disc structure, featuring rapid cut-off capability that can achieve second-level flow interruption in emergency conditions, effectively preventing medium backflow and leakage. The opening and closing speed as well as the buffer stroke can be flexibly adjusted according to the on-site pipeline anti-shock requirements, adapting to different working scenarios. Equipped with an energy storage device, the valve can automatically link to complete quick closing in case of power failure, pressure loss or system failure, providing safety guarantee for equipment and pipelines.

Advantages

1. Strong automation and remote controllability

The control box of hydraulic butterfly valve compatible with DCS/PLC self-control, can be operated locally and remotely, and can be manually/energy stored to close valves in case of power or voltage loss, ensuring safety and reliability.

2. Wide adaptability to working conditions

The eccentric butterfly valve suitable for large caliber, medium and high pressure, and can be used for media such as water, sewage, circulating water, oil, gas, etc.

3. Easy installation and maintenance

The flange double offset butterfly valves compact and lightweight structure, small footprint, easy maintenance, debugging, and replacement of accessories in the later stage, reducing operation and maintenance costs.

Packing

Standard export wooden case packaging

Application Scenarios

The adjusted hydraulic eccentric butterfly valves are widely used for high-performance cut-off/regulation of medium and high voltage large-diameter pipelines in water conservancy, power, municipal, chemical and other industries.

Material Specifications

Body	ASTM A216 Gr. WCB
Disc	ASTM A216 Gr. WCB
Disc seal ring	EPDM
Seat (Surfacing)	304
Upper shaft	ASTM A276 Gr. 420
Lower shaft	ASTM A276 Gr. 420
Pin	ASTM A276 Gr. 420
Retaining ring	SS304
Screw	SS304
Bushing	SF-1
Yoke	ASTM A216 Gr. WCB

Dimensions

Frequently Asked Questions (FAQ)

Q: How does the quick-closing function operate during emergency power loss?

A: The valve is equipped with an integrated energy storage device that allows it to complete quick second-level closing automatically in case of power failure, pressure loss, or system failure.

Q: Can this hydraulic eccentric butterfly valve be integrated into automated control systems?

A: Yes, the control box is compatible with DCS/PLC self-control systems, allowing both local and remote operations with full automation.

Q: What media and working conditions can this valve handle?

A: It is suitable for large-caliber, medium, and high-pressure applications handling media such as water, sewage, circulating water, oil, and gas.

Q: What are the main body and disc materials for this butterfly valve?

A: Both the main body and disc are made of high-quality ASTM A216 Gr. WCB investment casting, with an EPDM disc seal ring and 304 stainless steel seat surfacing.

Q: Can the valve opening and closing speeds be adjusted?

A: Yes, both the opening/closing speed and the buffer stroke can be flexibly adjusted based on site pipeline anti-shock requirements.

Q: What is the operating temperature range for this eccentric butterfly valve?

A: The valve is specified for safe operation within a temperature range of -20°C < T < 120°C.

Wholesale Hydraulic cylinder control butterfly valve quick closing adjusting type Supplier, Suppliers

Product Description

Characteristics

Advantages

Packing

Application Scenarios

Material Specifications

Dimensions

Frequently Asked Questions (FAQ)

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