Electric fluoropolymer-lined butterfly valve D971F46-16C

Product Features

Corrosion resistant lining, clamp installation, remote switch

Model number

D971F46-16C

Specification and caliber

DN50-DN600

Pressure level

PN16

Material

WCB/CF8/CF8M

Product Introduction

D971F46-16C electric fluoropolymer-lined butterfly valve

The electric fluoropolymer-lined butterfly valve D971F46-16C is used for automatic switching or process control in chemical acid and alkali transportation, electroplating, water treatment, and environmental protection devices. The selection should check the medium, temperature, maximum and normal flow rates, pressure difference before and after the valve, pipeline standards and control requirements, and should not be based solely on the existing pipe diameter. This article lists the commonly used configuration range, and the final data should be based on project conditions, order confirmation forms, and manufacturing drawings.

Structure and Drive

D971F46-16C adopts clamp connection, fluoropolymer-lined valve seat, and centerline butterfly plate. 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 to complete cutting or adjustment. The actuator should match the torque or thrust of the valve and reserve a reasonable safety factor. When feedback, positioning, or interlocking is required, the control signal, power or gas source, protection level, and fault safety location should be clearly defined during the ordering phase to avoid on-site interface mismatch.

Material and sealing

The commonly used caliber is DN50-DN600, the pressure rating is PN16, and the valve body material can be selected as WCB/CF8/CF8M. The selection of materials should take into account the corrosiveness of the medium, chloride ions, temperature fluctuations, and cleaning conditions. F46 lining soft seal, its allowable temperature, pressure difference, and leakage level should be checked simultaneously. For steam, particle containing, easily crystallized or frequently operated conditions, the hardness of valve internals, packing form and erosion prevention measures should also be confirmed.

Product Specifications

Product Model	D971F46-16C
Structural form	Clamp connection, fluoropolymer-lined valve seat, centerline butterfly plate
Nominal Diameter	DN50-DN600
pressure rating	PN16
Valve body material	WCB/CF8/CF8M
sealing form	F46 lining soft seal
Drive Type	Angular stroke electric actuator
Applicable temperature	-10℃ to 150℃, confirm according to the lining material
Applicable Medium	Acid alkali solutions, saltwater, and compatible corrosive media

Applicable working conditions

The product features include corrosion-resistant lining, clamp installation, remote switch, and can be used for chemical acid and alkali transportation, electroplating, water treatment, and environmental protection devices after reasonable configuration. Dangerous areas should select corresponding actuators, accessories, and wiring methods according to explosion-proof zones; Food, pharmaceutical and other systems also need to confirm the requirements for liquid receiving materials, surface treatment and cleaning. Projects involving oxygen, highly corrosive or toxic media should undergo specialized material and safety reviews.

Installation and Debugging

Before installation, the nameplate, flow direction, and connection standards should be checked, and welding slag and hard debris should be removed to ensure the concentricity of the front and rear pipe sections and avoid the transmission of pipeline stress to the valve body. Maintain maintenance space around the actuator, and prevent rainwater from entering the cable entrance; Pneumatic accessories should use a clean and dry air source. The first debugging should check the switch position, stroke feedback, interlocking logic, and sealing condition under low-risk conditions, and then gradually enter the working pressure.

Operation and maintenance

Observe action time, abnormal noise, leakage, valve position feedback, and control signals during operation. When 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 there is no residual energy. After replacing the seal, conduct strength, sealing, and action tests according to regulations, and record the material of the spare parts and the date of maintenance.

Q&A on the selection of electric fluoropolymer-lined butterfly valves

D971F46-16C is used for acid-base solutions. Which materials need to be confirmed first?

Please provide the name, concentration, temperature, pressure, and particle and negative pressure of the medium, and verify the valve body, liquid receiving lining, valve seat, and seal separately. It is not enough to determine that all acidic and alkaline solutions are suitable based solely on the corrosion resistance name, and material options cannot be replaced without verification.

Can D971F46-16C 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 D971F46-16C 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.

Selection and ordering information

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 caliber, material, seal, actuator, and accessory combination based on this, providing traceable basis for installation and maintenance.