Tianjin Bell Automatic Instruments Technology Co.,Ltd

China

We Offer Electric Control Butterfly Valve.SummaryControl the air.Suitable for the mediums like large flow and low differential pressure.It includes centerline wafer butterfly valve-economic and practical, whole lining type suiting for antiseptic liquids, three-eccentric center butterfly valve - good airproof effect and air butterfly valve -especially control the air. Electric Control Butterfly Valve Series and Type The name of product Type Nominal pressure Valve body materialElectric regulating wafer centreline butterfly valve BELLAJWA DN40DN1000 PN1.0PN1.6 Cast ironCast steelCast stainless steelZAJWA DN40DN1000 Electric regulating flange lining butterfly valve BELLAJWF DN50DN300 ZAJWF DN50DN300 Electric regulating three eccentric centre hard seal butterfly valve BELLAJWSY DN100DN2400 ZAJWSY DN100DN2400 Electric regulating air regulating butterfly valve BELLAJWK DN200DN1800 ZAJWK DN200DN1800 Supply Voltage: 220volt or 380voltElectronic Type: input signal 4-20mA, feedback signal 4-20mANon-electronic Type: the importation has a source switch the quantity signal, feedback signal 4-20mA.

We Offer Electric Control Gate Valve.Type: DZF, BELLZF, ZKVB, BELLVB Parameters of Electric Control Gate Valve: Nominal Diameter 4"-160" ( DN100-DN4000 )Pressure Grade 0.05 Mpa or according to the customers'demandsValve Body Material Cast iron, cast steel, cast stainless steelTemperature Range -15350 / Degrees CelsiusSuitable Medium Large-scale tunnels of metallurgy, building material , power, petrifaction and light industry Power Supply Voltage 220V, 380V or according to the customers demandsInput Signal Switching valve 4-20mAFeedback 4-20mAControl Accuracy 1%, 2.5%Turning Angle 0-90

We Offer DKZ Linear-turn Electric Valve Actuator. Summary DKJ quarter-turn electric actuator and DKZ linear-turn electric actuator are the earliest and the only products in our country. The products pool the wisdom of all the experts in our country during the planned economy timeOur engineers devoted themselves to this project in the early period, made great contributions to push the DKJ and DKZ series to the market and laid the foundation of enterprise's professional development. It is used in large-scale state-owned enterprise with simple-structure and economical and practical merits in the early period.With the development of modern industrialization and computer management, we make two outstanding improvements compared with the previous DKJ, DKZ series nowadays 1.We have already produced the electric intelligent type product, outdoor type, anti-explosion type and other improved products which are directly controlled by computer. 2.The steering circuit is fixed into a small plastic casing (generally called module), forming the PNP type that is easy to maintain. It functions as the higher regulating precision and longer using life.Our actuators have the most standard outlook size, which have played a key role in reconstructing projects of many large-scale enterprises.Principle of workThe DKJ, DKZ series electric actuator are the terminal control device of industrial process survey and the control system, changing the systems control signal into angular displacement, linear displacement of output axle, the position of valve and other regulating units. The main purpose is to enable the controlled medium to work well under the regulated system conditions.The electric actuator is divided into the proportion type and integral type according to the controlling type. The proportion actuator is made up of electric servo amplifier and integral type actuator that can compare systematic control signal with the feedback signal (closed-loop control) of output axis so as to change the travel route and has proportion relations with the output axis signal. The integral actuator consists of servo motor, reducer and position transmitter. Coordinating with motor operator, it can control valve or other regulating units from long distant.

We Offer SKJ Type High Speed Shutdown Actuator.SummaryOur company and Tianjin University developed the electric actuator together, which fills the domestic gap. It was the fastest electric actuator in our country till now. The SKJ product series united with the butterfly valve form the electric valve with fast shutting off performance which is especially suitable for the work situation that needs urgently action. The high speed series are widely used in the field of cement, the coal gas, agglutinates etc and was highly appraised by users.Function SKJ high speed electric actuator is the terminal control unit of an automated control system. It is widely used in the field of power plant, chemical industry, metallurgy, petroleum; especially in the work situation needs urgently action. It forms a complete set of fast shutting off electric valve together with the butterfly valve, which is widely used in the field of roll steel, agglutinate, profession, coal gas and cement industry.Structure and TheorySKJ high speed electric actuator is made up of 3-phase motor, reducer, travel route limit and other equipments. When switching on the power, the electric motor impetus output shaft to produce the torque. The travel limit is applied to adjust the output shaft's rotation degree. The terminal switch has a group normally open contact which is used to show the output signal. When the power shuts off or the limit switch occurs, the brake may rapidly prevent the system's coasting operation.

We Offer Linear-turn Electric Valve Actuator.Forty years production experienceStructure is simpleEconomical and practicalISO9001 certification SummaryThe electric actuators we manufactured are the products by using the introduced advanced technology from BERNARD Company of France. It has various kinds of protection function and control mode. It can be divided into the quarter-turn series, linear-turn series and multi- turn series. There are more than hundred kinds of specifications. Its control main board is continuously upgrading and updating and the new products appear rapidly in order to satisfy the needs of modern industrialization.The electric actuator has already widely applied in the large and medium-sized project which is the newly built and was highly appraised by users.At the same time, we also accumulate rich technology and scene experiences in the process of updating and upgrading DKJ or other actuators to the introduced series.Features of the introduced series The introduced new generation of intelligent model Assembled and manufactured in domestic, BELL and SD series introduce the advanced technology from France and the key components are imported from the country of origin. The manufacturing process is strictly in accord with the technique requirements of French company. However, the series mentioned above is produced with higher quality and lower cost. With the compact structure, light weight, fully function, over 1200 times per hour of the starting times and great logic control circuit, this series is especially applied to the conditions of high-efficient automation and frequent movements. Cut-off signal protection The actuator stop at the original, all-on or all-off position which is instructed by users as the signal is interrupted by accident or the input signal is less than 3mA (called the cut-off signal) in order to guarantee the whole systems safe and stable. It also possesses the output connection point for alarm.Over-torque of two- way protecting function The actuator has an over-torque surveying device that can accurately survey the torque of the valve. When the torque exceeds the setting scope, the torque switches inside the actuator and outputs a signal to the controlling circuit for stopping the motor to protect the valve, the driving parts and the motor. After the mechanical over-torque fault is relieved, shutting down the power supply or input an instantaneously reversed signal, the actuator will come back to turn normally. Auto switch function The actuator can implement three kinds of switch function Distant- automatic / distant -manual /local. It can also operate electrically and manually on the spot. The pros and cons of switch functionThe control panel program has the pros and cons of switch function that satisfied different situations on-the-spot. Dynamic brakingThe control panel program of modulating model electric actuator has the dynamic braking function that can prevent motors inertia movement and ensure the stability and reliability of the controlling system. Servo-motor with double protection and high-efficiency All the motor has the thermal and open-phase protecting function. When there is an unexpected failure, it will shut off the power supply effectively so as to protect the motor. It serves as a good servo characteristic and it will not overheat after frequent movements.Stronger anti-interference function

We Offer Electric Valve Actuator. Introduce France Bernard technologyStructure is simpleEconomical and practicalISO9001 certification SummaryThe electric actuators we manufactured are the products by using the introduced advanced technology from BERNARD Company of France. It has various kinds of protection function and control mode. It can be divided into the quarter-turn series, linear-turn series and multi- turn series. There are more than hundred kinds of specifications. Its control main board is continuously upgrading and updating and the new products appear rapidly in order to satisfy the needs of modern industrialization.The electric actuator has already widely applied in the large and medium-sized project which is the newly built and was highly appraised by users.At the same time, we also accumulate rich technology and scene experiences in the process of updating and upgrading DKJ or other actuators to the introduced series.Features of the introduced series The introduced new generation of intelligent model Assembled and manufactured in domestic, BELL and SD series introduce the advanced technology from France and the key components are imported from the country of origin. The manufacturing process is strictly in accord with the technique requirements of French company. However, the series mentioned above is produced with higher quality and lower cost. With the compact structure, light weight, fully function, over 1200 times per hour of the starting times and great logic control circuit, this series is especially applied to the conditions of high-efficient automation and frequent movements. Cut-off signal protection The actuator stop at the original, all-on or all-off position which is instructed by users as the signal is interrupted by accident or the input signal is less than 3mA (called the cut-off signal) in order to guarantee the whole systems safe and stable. It also possesses the output connection point for alarm.Over-torque of two- way protecting function The actuator has an over-torque surveying device that can accurately survey the torque of the valve. When the torque exceeds the setting scope, the torque switches inside the actuator and outputs a signal to the controlling circuit for stopping the motor to protect the valve, the driving parts and the motor. After the mechanical over-torque fault is relieved, shutting down the power supply or input an instantaneously reversed signal, the actuator will come back to turn normally. Auto switch function The actuator can implement three kinds of switch function Distant- automatic / distant -manual /local. It can also operate electrically and manually on the spot. The pros and cons of switch functionThe control panel program has the pros and cons of switch function that satisfied different situations on-the-spot. Dynamic brakingThe control panel program of modulating model electric actuator has the dynamic braking function that can prevent motors inertia movement and ensure the stability and reliability of the controlling system. Servo-motor with double protection and high-efficiency All the motor has the thermal and open-phase protecting function. When there is an unexpected failure, it will shut off the power supply effectively so as to protect the motor. It serves as a good servo characteristic and it will not overheat after frequent movements.Stronger anti-interference function

We Offer Electric Control Valve .SummaryThis series is suitable to the regulation which requests high precision, during the flux of control liquid.Electric single-seated, double-seated and sleeve regulating valves are composed of common DKZ series or imported electric actuator series and valve body which valve core is single-seated type, double-seated type or sleeve typeIt has a lot of control way, flow characteristic equal percentage and linearity Parameters of Automatic Control Valve The material of valve body: cast iron, cast steel, cast stainless steel and so on.Pressure grade: 1.6Mpa, 4.0Mpa, 6.4MpaConnecting type: flange couplingTemperature range: normal temperature -20---230 the thermal slug type -60---450Operation form: automatic open or closeFlow characteristic: equal percentage, linearityLeakage: single-base valve: 0.01* rating Kvdouble-base valve, sleeve valve: 0.5%* rating Kv ZAZPBELLAZP single seated automatic control valve specification table Nominal bore mm 20 25 32 40 50 65 80 100 125 150 200 Valve core diameter mm 10 12 15 20 25 32 40 50 65 80 100 125 150 200 Rated flux coefficient Kv 1.2 2 3.2 5 8 12 20 32 50 80 120 200 280 450 Nominal pressure Mpa 1.6 4 6.4 Match DKJ actuator specification DKZ-4100 DKZ-4200 DKZ-4300 DKZ-5400 DKZ-5500 Differential pressure Mpa 6.4 4.0 4.0 4.0 3.5 2.3 2.0 1.42 1.4 0.91 0.55 0.35 0.26 0.17 Match introduced actuator specification A+Z64 Differential pressure Mpa 6.4 6.4 4.0 4.0 3.7 2.5 2.2 1.6 1.5 1.0 0.6 0.4 0.3 0.2 Rated travel mm 10 16 25 40 40