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    The leading products of Shanghai Guanhuan Manufacturing Co., Ltd. cover 13 major categories, specializing in the intelligent manufacturing of high-quality, high, medium and low-pressure large-diameter gate valves, ball valves, butterfly valves, check valves, globe valves, regulating valves, steam traps, pressure reducing valves, plug valves, plungers Valves, discharge valves, diaphragm valves, hydraulic control valves and filters; It includes the following series: pneumatic valves, electric valves, self-operated valves, anti-corrosion lined PTFE valves, rubber lined valves, wear-resistant ceramic valves, forged steel valves, bellows valves, power station valves, oil field valves, American standard valves, oxygen valves Valves, vacuum valves, cryogenic valves, non-standard custom metallurgical valves And special metal valves are referred to as special material valves (titanium valves, nickel valves, zirconium valves, duplex steel valves, Monel valves, Hastelloy valves and control devices, etc.

    Ball valve series

    The ball valve is mainly used to cut off, distribute and change the flow direction of the medium on the pipeline, and the ball valve designed with a V-shaped opening also has a good flow regulation function. The ball valve is suitable for frequent operation, quick and easy to open and close. And it has small fluid resistance, simple structure, relatively small volume, light weight and easy maintenance. The good sealing performance is not limited by the installation direction, and the flow direction of the medium can be arbitrary.

    Butterfly valve series

    Guanhuan butterfly valve product series are widely used in thermal pipelines, boiler auxiliary systems, petrochemical and metallurgical industries because of their compact structure, small size, light weight, convenient operation, reliable performance, and simple maintenance. Corrosive and non-corrosive media. Its products are divided into centerline, single eccentric, double eccentric and triple eccentric structures. The metal hard seal butterfly valve has an eccentric structure. It is the extension and development of the general soft seal butterfly valve to the medium and high pressure field. In addition to the original characteristics of the butterfly valve, it also has anti-aging, anti-radiation, durable, long life, high temperature and high pressure resistance. Features such as wide range of applications.

    Gate valve series

    The gate valve is a gate of the opening and closing part. The direction of movement of the gate is perpendicular to the direction of the fluid. The gate valve can only be fully opened and fully closed, and cannot be adjusted or throttled. The gate valve is sealed by the contact between the valve seat and the gate plate. Usually, the sealing surface will be surfacing with metal materials to increase wear resistance, such as surfacing welding 1Cr13, STL6, stainless steel, etc. There are rigid gate valves and elastic gate valves. According to the different gate valves, gate valves are divided into rigid gate valves and elastic gate valves.

    Globe valve series

    The globe valve is suitable for cutting or regulating and throttling. Because the opening or closing stroke of the valve stem of this type of valve is relatively short, and it has a very reliable cut-off function, and because the change of the valve seat opening is proportional to the stroke of the valve disc, it is very suitable for flow adjustment. It can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil, liquid metal and radioactive media.

    Check valve series

    Check valve, also known as non-return valve, check valve, one-way valve or check valve, is used to ensure the directional flow of the medium in the pipeline without backflow. The bottom valve of the water pump suction pipe also belongs to the check valve category. Check valves are automatic valves, which are used in pipelines in various working conditions such as petroleum, chemical, pharmaceutical, chemical fertilizer, and electric power industries. The applicable medium is water, oil, steam, acidic medium, etc.

    Pneumatic valve series

    Pneumatic valves are valves driven by compressed air. When purchasing pneumatic valves, only the specification, category, and working pressure are specified to meet the procurement requirements. It can be used to control various types of fluids such as air, water, steam, various corrosive media, mud, oil, liquid metal, and radioactive media. flow. It is not perfect in the current market economy environment. Because of the competition of products, pneumatic valve manufacturers carry out different innovations under the concept of unified design of pneumatic valves, forming their own corporate standards and product characteristics. Therefore, when purchasing pneumatic valves, it is very necessary to put forward technical requirements in more detail and coordinate with manufacturers to reach a consensus as an attachment to the pneumatic valve procurement contract. This type of valve should generally be installed horizontally in the pipeline.

    Electric valve series

    Simply put, the electric valve is to use an electric actuator to control the valve, so as to realize the opening and closing of the valve. It can be divided into upper and lower parts, the upper part is the electric actuator, and the lower part is the valve. It can also be called air conditioning valve.
    The electric valve is a high-end product in the automatic control valve. It can not only realize the switch function, but also realize the valve position adjustment function. The stroke of the electric actuator can be divided into two types: 90° angular stroke and straight stroke. Special requirements can also meet 180°, 270°, 360° full stroke. The quarter-stroke electric actuator is used with the quarter-stroke valve to realize the internal rotation of the valve at 90° to control the on-off of the pipeline fluid; the straight-stroke electric actuator is used together with the straight-stroke valve to realize the up and down movement of the valve plate to control the on-off of the pipeline fluid.

    Gas valve series

    The gas valve is a new type of safety supporting device for gas pipeline engineering. It is used to cut off, connect and adjust the gas in the pipeline, and has good control characteristics and closing and sealing performance. Applicable to city gas, liquefied petroleum gas, natural gas, oxygen and other gas medium pipelines.

    Fluorine valve series

    Fluorine-lined valves, also known as fluoroplastic-lined corrosion-resistant valves, are molded (or inlaid) of polytetrafluoroethylene resin (or processed profiles) on the inner wall of steel or iron valve pressure parts (the same method It is suitable for the lining of various pressure vessels and pipeline accessories) or the outer surface of valve internals, and it is made into various valves and pressure vessels by utilizing its excellent performance in resisting strong corrosive media.

    Bellows valve series

    It is often used in occasions that require strict sealing of the valve stem, such as high vacuum occasions and nuclear industry. Bellows are used instead of the stuffing box on ordinary valves or used together with the stuffing box to make the stem part leak-free, to prevent the leakage of radioactive or valuable materials, or to maintain a high vacuum.

    Special material valve series

    Special material valves get their name from the structure that separates fluids. The disc-shaped valve accommodated in the valve body moves at right angles to the flow path to open and close. It is a sealing structure utilizing the wedge effect of the valve. From the point of view of sealing, the valve is not fixed on the valve stem, but can move freely in the sealing direction. When the valve is fully closed, both valve seats are of a sealable structure.

    Large diameter valve series

    Large-diameter valves refer to general-purpose valves and special valves that are used in piping systems with larger sizes, generally with a nominal diameter of DN200 and above, and valve diameters generally ranging from DN200 to DN3000. Large diameter valves are mainly used in petrochemical, electric power, metallurgy, chemical industry, water treatment and …

    Forged steel valve series

    Forged steel valve refers to the material of the valve body is forged steel, the most common is A105. The difference between forged steel valves and cast steel valves is that cast steel is cast into the valve body structure through molds in the foundry, while forged steel valves need to process forged steel materials into valve bodies through machine tools.

    Control valve series

    Regulating valve, also known as control valve, is the final control element used to change process parameters such as medium flow, pressure, temperature, liquid level, etc. It is generally composed of actuators and valves. According to the characteristics of the stroke, the regulating valve can be divided into straight stroke and angular stroke; according to …

    Discharging valve series

    The discharge valve is mainly used for bottom discharge, discharge, sampling and non-dead zone shutdown operations of reactors, storage tanks and other containers. The bottom flange of the valve is welded to the bottom of storage tanks and other containers, thus eliminating the residual phenomenon of the process medium usually at the outlet of the device. The…

    Pressure reducing valve series

    The pressure reducing valve is a valve that reduces the inlet pressure to a certain required outlet pressure through adjustment, and relies on the energy of the medium itself to keep the outlet pressure automatically stable. From the point of view of fluid mechanics, the pressure reducing valve is a throttling element whose local resistance can be changed, th…

    Plug valve series

    The plug valve is a closing member or a plunger-shaped rotary valve. By rotating 90 degrees, the channel port on the valve plug communicates with or separates from the channel port on the valve body to realize opening or closing.The shape of its valve plug can be cylindrical or conical. In cylindrical plugs, the passages are generally rectangular; in tapered …

    Power station valve series

    "Power station valves" are also called special valves for power stations, which are mainly used on the pipelines of various systems in thermal power plants to cut off or connect pipeline media.

    Ammonia special valve series

    The ammonia valve is a new type of valve for the safety protection of dangerous goods. It combines the lifting structure of the stop valve and the principle of the check valve to prevent the backflow of the medium, and combines the advantages of the stop valve, check valve, solenoid valve and pneumatic valve. It is composed of multiple springs. Composed of a …

    Oilfield valve series

    The oil field valve is not only a moving part, a stressed part, but also a sealing part in the process of valve opening and closing. At the same time, it is impacted and corroded by the medium, and also has friction with the filler. Therefore, when selecting oil field valve materials, it must be ensured that it has sufficient strength, good impact toughness, …

    Needle instrument valve series

    Needle valve is a valve that can be adjusted precisely, and it has a wide range of uses. For example, the cutting distance for flame cutting and the knob for adjusting the flame temperature are needle valves. The instrument needle valve is an important part of the instrument measurement pipeline system, mainly including globe valves and ball valves, and its f…

    Solenoid valve series

    Solenoid valve is an industrial equipment controlled by electromagnetic. It is an automatic basic component used to control fluid. It belongs to actuator and is not limited to hydraulic and pneumatic. To put it simply, a solenoid valve is actually a tool that uses electromagnetics to control the opening and closing of switches. Compared with ordinary switches…

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