Electric high-pressure ball valve Q941F-25P

Product Features

Flange connection, remote switch, low flow resistance

Model number

Q941F-25P

Specification and caliber

DN15-DN150

Pressure level

PN25

Material

CF8/CF8M

Product Introduction

Q941F-25P electric high-pressure ball valve

Electric high-pressure ball valve Q941F-25P is used for automatic switching or process control in equipment matching, chemical pipelines, water treatment, and general automation. 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

Q941F-25P adopts a two-piece straight channel, flange connection, and floating ball 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 to complete the opening and closing and cutting; If the project requires continuous adjustment, it should be confirmed separately whether the ball core flow channel, valve seat structure, and actuator are suitable for throttling conditions. 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 power supply, control signals, valve position feedback, on-site protection requirements, protection levels, and fault safety positions should be clearly defined during the ordering phase to avoid interface mismatch on site.

Material and sealing

The commonly used caliber is DN15-DN150, the pressure rating is PN25, and the valve body material can be selected as CF8/CF8M. The selection of materials should take into account the corrosiveness of the medium, chloride ions, temperature fluctuations, and cleaning conditions. Enhance the PTFE soft seal, and 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	Q941F-25P
Structural form	Two piece straight channel, flange connection, floating ball structure
Nominal Diameter	DN15-DN150
pressure rating	PN25
Valve body material	CF8/CF8M
sealing form	Enhance PTFE soft seal
Drive Type	Angular stroke electric actuator
Applicable temperature	-20℃ to 180℃, confirm according to the sealing material
Applicable Medium	Water, oil, gas, and compatible process media

Applicable working conditions

The product features include flange connection, remote switch, low flow resistance, and can be used for equipment matching, chemical pipelines, water treatment, and general automation 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. Maintenance space should be reserved around the actuator, and cable entrances should be waterproofed and protected according to the on-site environment; The first debugging should check the fully open and fully closed positions, valve position feedback, interlocking logic, and sealing condition.

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 supply, wiring, control module, valve position feedback, and electric 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 high-pressure ball valves

Can Q941F-25P maintain half open and control flow for a long time?

Ordinary opening and closing ball valves should not be throttled for a long time without verification. If continuous flow regulation is required, the suitability of the ball port, valve seat, and actuator should be confirmed based on the flow range, pressure difference, medium, and operating frequency. It cannot be considered a regulating valve simply by increasing the control signal.

When replacing the old flange ball valve with Q941F-25P, is it enough to only check DN and PN?

It is also necessary to verify the flange standard, sealing surface, structural length, valve body and seat materials, as well as the allowable pressure at operating temperature. The installation space and connection bracket of the actuator should also be confirmed together with the site.

Will Q941F-25P 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, power supply, control signals, valve position feedback and requirements for electric actuators, 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.

More electric products can be found atSelection of electric ball valveCorresponding pneumatic structures can be referred toQ641F-25P Pneumatic High Pressure Ball ValveThe overall selection of ball valves can be found inBall valve manufacturer column。