Electric hard seal butterfly valve HK60-D-GF

Product Features

Flange connection, metal seal, electric switch or adjustment

Model number

HK60-D-GF

Specification and caliber

DN50-DN600

Pressure level

PN16/PN25

Material

WCB/CF8/CF8M

Product Introduction

Electric hard seal butterfly valve HK60-D-GF Product Description

The electric hard seal butterfly valve HK60-D-GF is designed for automatic switching or process control needs in thermal pipelines, energy devices, chemical utilities, and industrial water systems. When selecting, one should start from the actual working conditions, check the medium name, temperature, maximum and normal flow rates, pressure before and after the valve, connection standards and control methods, and not simply copy the valve diameter based on the existing diameter. The parameters provided in this article belong to the commonly used configuration range, and the final execution data should be based on the project operating conditions, order confirmation form, and manufacturing drawings.

Product Specifications

Product Model	HK60-D-GF
Structural form	Flange connection, metal hard seal, eccentric butterfly plate structure
Nominal Diameter	DN50-DN600
pressure rating	PN16/PN25
Valve body material	WCB/CF8/CF8M
sealing form	Stainless steel composite metal seal
Drive Type	Angular stroke electric actuator
Applicable temperature	-20℃ to 350℃, confirm according to material combination
Applicable Medium	Water, steam, oil products, and general industrial gases

Structure and working mode

HK60-D-GF adopts flange connection, metal hard seal, and eccentric butterfly plate structure. When the fluid passes through the valve body flow channel, the position of the opening and closing parts is changed by the angular stroke electric actuator, thereby completing cutting, reversing or adjusting. The actuator should match the required torque or thrust of the valve and have a reasonable safety factor. When there are feedback, positioning, or interlocking requirements, it is necessary to specify the control signal, power or gas source conditions, protection level, and fault safety location during the ordering stage to avoid inconsistent on-site accessory interfaces.

Caliber pressure and material selection

The commonly used caliber is DN50-DN600, and the pressure rating is PN16/PN25. The valve body material can be selected as WCB/CF8/CF8M, but the material selection cannot be separated from the corrosiveness of the medium, chloride ion content, temperature fluctuations, and cleaning conditions. The allowable temperature, pressure difference, and leakage level of the stainless steel composite metal seal need to be checked simultaneously. For steam, crystallization prone, particle containing, or frequent operating conditions, further confirmation should be made on the hardness of valve internals, packing form, and erosion prevention measures.

Product features and applicable industries

The main features of this product are flange connection, metal sealing, and electric switch or adjustment. After reasonable configuration, it can be used for thermal pipelines, energy devices, chemical utilities, and industrial water systems. When used in hazardous areas, the corresponding actuator, solenoid valve, limit switch or locator should be selected according to the explosion-proof zone on site; When used in food, pharmaceutical and other systems, it is also necessary to confirm the requirements for liquid handling materials, surface treatment and cleaning. Any project involving oxygen, strong corrosive or toxic media should undergo specialized material and safety reviews.

Installation and Debugging

Before installation, check the nameplate, flow direction, flange or thread standards, remove welding slag and hard debris from the pipeline, and ensure that the front and rear pipe sections are concentric to avoid transmitting pipeline stress to the valve body. Space for disassembly and assembly should be reserved around the actuator, cable entrances should be protected from rainwater backflow, and pneumatic accessories should use clean and dry air sources. The first debugging should check the fully open and fully closed positions, travel feedback, interlocking logic, and sealing conditions under low-risk conditions, and then gradually enter the working pressure.

operation and maintenance

During operation, the action time, abnormal noise, leakage, valve position feedback, and control signals should be observed. If the action is slow, first check the power or gas source, wiring, filter pressure reducing valve, and actuator, and then check the valve stem, valve seat, and seals. It is not advisable to blindly increase the driving force. Before maintenance, it is necessary to isolate the medium, relieve pressure, and confirm that the equipment has no residual energy. After replacing the seal, strength, sealing, and action tests should be conducted according to regulations, and the material of the spare parts and the date of maintenance should be recorded.

Q&A on selection of electric hard seal butterfly valve

How to confirm the allowable leakage when HK60-D-GF is used for cutting off?

When ordering, the medium, working temperature, pressure difference, sealing direction, and inspection standards should be clearly defined, and the valve seat material and leakage level should be checked. Hard seal or triple eccentric name does not mean zero leakage in all directions and operating conditions.

Can HK60-D-GF directly replace the original flange butterfly valve?

Please provide the connection standard, structural length, sealing surface, and on-site space of the old valve, and verify the driving height and flow direction requirements of the new valve. It cannot be determined that direct replacement can be made solely based on the same caliber and nominal pressure.

Will HK60-D-GF automatically shut down after a power outage?

The power-off action cannot be determined solely by the name of the electric drive. Ordinary electric actuator cannot default to having automatic valve closing function when power is lost; If the process requires fault closure, the energy storage or other fault safety scheme of the actuator should be confirmed at the time of ordering, and the entire valve interlock verification should be completed.

Order Information List

Suggest providing the composition of the medium, design and operating temperature, maximum and normal pressure, flow range, pipeline standards, operating frequency, control signals, power or gas supply conditions, fail safe location, and environmental protection requirements. Fouten Flow Control (Jiangsu) Co., Ltd. will verify the valve diameter, material, seal, actuator, and accessory combination based on these materials to ensure that the product parameters are consistent with the actual pipeline conditions, and provide traceable basis for subsequent installation and maintenance.