Q347F Worm Gear Fixed Ball Valve

Q347F worm gear fixed ball valveis a three-part connection forged steel fixed ball valve, which is mainly used to cut off, distribute and change the direction of medium flow in the pipeline. Applicable to: chemical, petroleum, natural gas, metallurgy, and other industries and long-distance natural gas pipelines containing hydrogen sulfide media, many impurities, and serious corrosion.

Detailed parameters of 347F worm gear fixed ball valve:

Model: Q347F

Air tightness test: 0.5-0.7

Working temperature: PTEE≤150℃ PPL E≤300℃ carbon fiber≤350℃

Applicable medium: water, oil, steam P: nitric acid (temperature ≤200℃) R: acetic acid (temperature ≤200℃)

Q347F Worm Gear Fixed Ball Valve Structure and Application:

Three-part connection forged steel fixed ball valve, the valve body is divided into three parts along the section perpendicular to the axis of the valve channel at the two valve seats. The whole valve is symmetrical along the center axis of the stem. It is mainly used in the pipeline Cut off, distribute and change the flow direction of the medium. Its large pivot structure ensures accurate ball center position under high pressure, ensuring good valve operation performance; standard valve seat adopts a spring structure to push the valve seat toward the ball, ensuring good two-way sealing performance for inlet and outlet; With a discharge valve, the cavity of the valve body can be discharged outward; the pivot adopts an anti-blowout protection structure to effectively prevent leakage; the low friction coefficient of the bearing reduces the torque to the minimum, which is convenient for opening and closing the valve; the valve stem and the valve body Effective contact makes the anti-static grounding device superior in performance. It has the advantages of excellent performance, high reliability, wide range of uses, and reasonable price.

Applicable to: chemical, petroleum, natural gas, metallurgy, and other industries and long-distance natural gas pipelines containing hydrogen sulfide media, many impurities, and serious corrosion.

Q347F Worm Gear Fixed Ball Valve Product Overview:

Ball valves are used in oil, natural gas, coal and ore mining, refining and processing and pipeline transportation systems; in chemical products, medicine and food production; in hydropower, thermal power and nuclear power generation systems; in urban and industrial enterprises’ water supply and drainage systems , Heating, and gas supply systems; in the irrigation and drainage systems of farmland; in the metallurgical production system, it is an important mechanical product closely related to production and construction, national defense construction and people's lives. The ball valve is sealed in various piping systems to cut off or connect the medium flow, so that the medium can be transported to each designated point according to a predetermined procedure.

Q347F Worm Gear Fixed Ball Valve Features:

1. The manual part can adopt a handle made of steel plate or a handle made of stainless steel. The handle is equipped with a limit structure to set limits at the opening and closing positions of the valve. When the valve is used on a key device, the limit block is provided with a lock hole to lock the switch position to avoid misoperation. The handle is clearly marked on and off.

2. The valve stem is forged and modulated in A182F (1Cr13), with a hardness of HB220～250. The valve stem is connected to the handle through a flat key or a spline or a square key, which has strong versatility and is easy to disassemble and assemble. The valve stem is provided with a blow-out prevention structure.

3. The packing of the valve is made of braided, flexible graphite sealing ring or tetrafluoroene sealing ring, so that the valve stem can achieve reliable sealing under certain lubrication conditions.

4. According to needs, the ball valve can be designed as an anti-static structure. Conductive springs are set between the ball and the valve stem, and between the valve stem and the valve body to prevent static ignition from igniting flammable substances and ensure the safety of the system.

5. The sealing pair has various forms. According to different working conditions, soft seal, hard seal, fire valve seat and other structures can be selected; below DN150 is the form of floating ball, and below DN200 is the form of fixed ball.

6. Auxiliary sealing structure can be installed at the valve seat of the ball valve. Grease valve can be installed on the valve seat and valve stem. It can be temporarily sealed in an emergency, and the valve stem can be lengthened as needed to be suitable for laying in the ground.

The Q347F worm gear fixed ball valve is connected in three parts to form a forged steel fixed ball valve. The valve body is divided into three parts along a section perpendicular to the axis of the valve channel at the two valve seats. The whole valve is symmetrical along the center axis of the valve stem. It is mainly used for cutting off, distributing and changing the flow direction of the medium on the pipeline. Its large pivot structure ensures accurate ball center position under high pressure, ensuring good valve operation performance; standard valve seat adopts a spring structure to push the valve seat toward the ball, ensuring good two-way sealing performance for inlet and outlet; With a discharge valve, the cavity of the valve body can be discharged outward; the pivot adopts an anti-blowout protection structure to effectively prevent leakage; the low friction coefficient of the bearing reduces the torque to the minimum, which is convenient for opening and closing the valve; the valve stem and the valve body Effective contact makes the anti-static grounding device superior in performance. It has the advantages of excellent performance, high reliability, wide range of uses, and reasonable price. Applicable to: chemical, petroleum, natural gas, metallurgy, and other industries and long-distance natural gas pipelines containing hydrogen sulfide media, many impurities, and serious corrosion.

Main performance specifications of fixed worm gear ball valves

Material of main parts of fixed worm gear ball valve

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