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    • PU O-RINGS

      OEM/ODM rubber Parts, such as O-rings, seals, rubber gasket, rubber foot, rubber molded parts, rubber sealing, auto rubber parts, etc. Materials: Butadiene (BR), butyl isobutylene isoprene (IIR),

      • PU O-RINGS

    • PTFE O-RINGS

      OEM/ODM rubber Parts, such as O-rings, seals, rubber gasket, rubber foot, rubber molded parts, rubber sealing, auto rubber parts, etc. Materials: Butadiene (BR), butyl isobutylene isoprene (IIR),

      • PTFE O-RINGS

    • CR O-RINGS

      OEM/ODM rubber Parts, such as O-rings, seals, rubber gasket, rubber foot, rubber molded parts, rubber sealing, auto rubber parts, etc. Materials: Butadiene (BR), butyl isobutylene isoprene (

      • CR O-RINGS

    • FMVQ O-RINGS

      OEM/ODM rubber Parts, such as O-rings, seals, rubber gasket, rubber foot, rubber molded parts, rubber sealing, auto rubber parts, etc. Materials: Butadiene (BR), butyl isobutylene isoprene (

      • FMVQ O-RINGS

    • FKM O-RINGS

      OEM/ODM rubber Parts, such as O-rings, seals, rubber gasket, rubber foot, rubber molded parts, rubber sealing, auto rubber parts, etc. Materials: Butadiene (BR), butyl isobutylene isoprene (

      • FKM ORINGS

    • silicone stopper

      OEM/ODM rubber Parts, such as O-rings, seals, rubber gasket, rubber foot, rubber molded parts, rubber sealing, auto rubber parts, etc. Materials: Butadiene (BR), butyl isobutylene isoprene (IIR), Rubber O-Ring, Rubber Ring, Rubber Rectangular Rings, Rubber V-Rings and other seals. As a Chinese factory, we supply rubber molded, and rubber to metal bonded parts for automotive IndustriesO Ring Kits - 5B Material: Nbr 30, nbr 70, nbr 90, viton 70, viton 90, epdm, silicone, hnbr, cr, nr and so on; Type: 102pcs, 225pcs, 382pcs, 386pcs, 404pcs, 407pcs, 419pcs and so on...

      • silicone stopper

    • o-ring kits

      OEM/ODM rubber Parts, such as O-rings, seals, rubber gasket, rubber foot, rubber molded parts, rubber sealing, auto rubber parts, etc. Materials: Butadiene (BR), butyl isobutylene isoprene;Rubber O-Ring, Rubber Ring, Rubber Rectangular Rings, Rubber V-Rings and other seals. As a Chinese factory, we supply rubber molded, and rubber to metal bonded parts for automotive Industries,Material: Nbr 30, nbr 70, nbr 90, viton 70, viton 90, epdm, silicone, hnbr, cr, nr and so on; Type: 102pcs, 225pcs, 382pcs, 386pcs, 404pcs, 407pcs, 419pcs and so on;

      • o-ring kits

    • HUAHAI HHD Electromagnetic Flowmeter

      Electromagnetic flowmeter is a kind of inductional instrument designed by Faraday’s law of electromagnetic induction to measure flow of conductive media in the tube. It adopts the technology of insertion of single chip to realize digital excitation and employs CAN local fieldbus. Electromagnetic flow meter can realize local indication and output electrical current signal of 4-20mA which can be used to record, adjust and control. Electromagnetic flow meters are widely used in industrial sectors such as chemical industry, environmental protection, metallurgy, pharmaceutical, paper making, water supply and removal etc. Besides measuring flow of general conductive liquid electromagnetic flowmeter can measure flow of liquid-solid mixed fluid, high-viscosity fluid and salt, strong acid and strong alkali.

      • 86 517 86988668

    • HUAHAI HHD (Integral) Electromagnetic Flowmeter

      Electromagnetic flowmeter is a kind of inductional instrument designed by Faraday’s law of electromagnetic induction to measure flow of conductive media in the tube. It adopts the technology of insertion of single chip to realize digital excitation and employs CAN local fieldbus. Electromagnetic flow meter can realize local indication and output electrical current signal of 4-20mA which can be used to record, adjust and control. Electromagnetic flow meters are widely used in industrial sectors such as chemical industry, environmental protection, metallurgy, pharmaceutical, paper making, water supply and removal etc. Besides measuring flow of general conductive liquid electromagnetic flowmeter can measure flow of liquid-solid mixed fluid, high-viscosity fluid and salt, strong acid and strong alkali.

      • electromagnetic flow meter magnetic flowmeter water flowmeter

    • silcone watch bracelet

      Supply Silicone molded Parts & components including Silicone seals & Rings, Silicone stoppers, Silicone Pad, Silicone Button, Silicone Cover and other silicone rubber products.

      • silicone watch bracelet

    • state power world HRTNZ HRTNZ Type AC 0-2000V Adjustable Stable Voltage Power Supply

      Input: AC 380V( single-phase), output AC 0-2000V，100A. It can be served as voltage fluctuation simulation source in railway locomotive DC 110V control source cabinet test-------as simulation test equipment for voltage operation of railway grid (25×（1+16%/1-25%）kV、25×（1+16%/1-34%）kV , With big magnitude of constant voltage fluctuation). This equipment can automatically adjust and stabilize voltage by manual control or numerical control. It also has a high output level, which far exceeds users’ need and tests’ requirement.

      • Stable Voltage Power Supply

    • state power world HRG HRG Series of Single-phase, Three-phase Isolated Transformer and Rectifying Transformer

      It is mainly used as the power source of the electric loading request and power & electric isolation for power system and industrial enterprises, which can transform alternating current into magnetoeclectric; and as the precise measuring tester for anti-interference system it cleans the isolated equipment of power and gird. Isolated transformer: HRGB（D）/（S）single-phase/ three-phase, oil-immersed-type and dry-type Input or output voltage: （D）220V（380V） two line , (S)380V Isolated voltage:　 3KV，5KV，10KV, No-load current: <5% Impedance voltage: <7% Potential Isolation: single shielding or double shielding Special mark: 50KV，100KV，200KV，300KV，500KV，700KV，1000KV (it can be set freely.) Input & output voltage of HRGB（G）is high-voltage: 1KV，2KV，3KV，5KV，10KV-100KV…… Capacity: 0-5、10、15、20、30、50、100-1000KVA…… Rectifying transformer：HRZB（D）/（S） capacity：5-1000KVA…… The voltage and the capacity of input and output are based on clients’ requests. There are two kinds of products: the oil-immersed ones and the dry ones.

      • Rectifying Transformer

    • state power world HRBSQ HRBSQ (SLQ/DDG) Series of Portable and Adjustable Current Amplifier

      Current amplifier which thermally stabilizes electrical devices is a kind of current source for testing use. For example, it can be used as low-voltage super-current source in motion stability test and temperature rising test of air circuit breaker, contactor, relay, and bus-bar. In addition, it can also be used as check current source of current transformer. Current amplifier, no matter if it’s the single phase or the three phase, the AC current or the DC current, is consisted of super-current generator (transformer), regulator and controller. Output : AC3-12V、50-50000A DC10-20V、50-50000A Working hour: For rated voltage output, then working hour would be 2.5 minutes. For 1/4 of rated voltage output, then working hour would be used in a long time.

      • Adjustable Current Amplifier

    • state power world HRSGB Series of HRSGB Intelligent Digital High Pressure Gauge

      The digital high voltage meter is used for measuring the line-frequency high alternating and direct-currency voltage in the electrical power system and the manufacturing department of the electric installation and the electrical aid. The measurement parts and the displaying parts of the high pressure gauge are divided. It is safe and reliable by adopting the portable type. The measuring results have a high linearity. Voltage classes: 50kV、100kV、200kV、300kV、400kV、500kV Degree of accuracy: ±1.5%, ±1.0%, ±0.5% (The three types are the upgrades of the high voltage electrostatic voltmeter.)

      • HRSGB Intelligent Digital High Pressure Gauge

    • state power world HRJFD-2A HRJFD-2A Type Local Discharge Ultrasonic Automatic Positioning Device

      The failure testing and positioning of operating the medium and large sized transformers have always been the points that electrical engineers focus for a long time. The HRJFD-2A system, manufactured in the large-sized transformer local discharge ultrasonic position method and equipment research subject which is one of the national key scientific and technological project has provided an effective solution. The HRJFD-2A system has carried the ultrasonic measurement to the local discharge of the hundreds of transformers and reactor in Gezhou Dam 500kV switch station, Wuhan Phoenix Mountain 500kV transformer substation, Shengyang transformer factory, Hefei transformer factory, Hengyang transformer factory, Guangzhou power supply bureau, Hunan electricity generating board, Chongqing transformers factory and Wuhan steel. This system has the advantage of operation reliable and easy to operate. It can meet the needs of measurement. As one of the key items of the of eight-five project, this electrical device has been widely used for the spot test and research in the related unit in the north, east, central and northwest parts of China. The HRJFD-2A ultrasonic positioning system which is including the high performance computer, high-sensitivity local discharge sound probe, programmed amplified filter, high-speed A/D transducer, transient waveform recording, signal analysis and fault location software is applied for acquiring, measuring, analyzing, positioning and spot observing the local discharge ultrasonic signal in the large-sized transformer, oil-immersed high voltage electrical apparatus and the GIS electrical operation equipment. The HRJFD-2A ultrasonic positioning system can position the fault and the error is less than 250mm. The whole measuring system can find out the local discharge ultrasonic signal which is less than 1000pC. Functions and characteristics: (1) Making the detecting operation of local discharge ultrasonic more convenient and the analyzing more simple under the platform of the windows. (2) Making the signal acquired more reliably for the ultrasonic sensor has the performance of low noise, high-sensitivity and anti-jamming. (3) Making the spot testing more flexible with the local discharge ultrasonic signal electrical-acoustical position and acoustical-acoustical position functions (4) Making the result of the position more precisely by choosing freely the spherical position calculation and the hyperboloid position calculation of the ultrasonic signal. (5) Showing the position coordinates by ultrasonic probe and the locating point by solid geometric drawing. (6) Convenient for building the measuring and positioning database for further analyzing and managing. (7) Be the local discharge on-line detecting instrument which is useful for detecting the local generating and developing. Technical parameter: The sensitivity of the ultrasonic probe: -150dB A/D conversion accuracy: 8bit±1/2LSB Sample length: 32k/channel Minimum detectable discharge:＜50pC (laboratory)＜300(1000)pC (spot) Minimum positional error:＜50mm(laboratory)＜ 250mm (spot)

      • Type Local Discharge Ultrasonic Automatic Positioning Device

    • state power world HRGKC HRGKC High Voltage Switch Mechanical Features Tester

      This tester is used to measure time, speed and process of the overstuffed, oil-minimum breaker, vacuum and SF6 high voltage switch and high-voltage circuit breaker. It is also can be used to measure the closing and trip time, the bounce time, the reclosing time, maximum speed and the average speed of the high-voltage circuit breaker. It has the function of the liquid crystal display and print as well as the menu prompt operation. The main characteristics: The measuring vacuum switch doesn’t need to put into the process. It can be tested directly and sensor can be easily installed. Main technical target: Maximum speed measurement: 7m/s Inaccuracy of measurement: 0.01m/s Maximum haul cycle: 600mm Inaccuracy of measurement: 1mm or 0.5mm Maximum time: 999.0ms Inaccuracy of measurement: 0.1ms

      • High Voltage Switch Mechanical Features Tester

    • state power world HBZDC HBZDC Type Vacuity of the Vacuum Switch Measuring Instrument

      This instrument is made by adopting the latest excitability flexible circuit conductor to measuring the vacuity of the vacuum switch automatically without the unloading. The operation is simply and reliable. It can be used in many kinds of vacuum tube. Performance and characteristics: (1) It can quantitatively measure the vacuity of the vacuum tube as much as 35 curved shapes. (2) It has the function of leaking detecting. (3) The useful time can be speculated from the historical data. (4) The internal of the instrument has been stored the arc extinguish chamber. You can read directly without unloading. (5) The band and surface type printer can put out the printer. (6) This series has been divided into two kinds of instruments which are loading and unloading. (7) The unique function: The instrument can judge the three situations of the vacuity which are eligible, declinable and fully leakiness. Range of measuring: 0.000001～0.1pa Output voltage: AC 220V 50Hz Input Power: High voltage output: Pulsed voltage: 30kV, 15 kHz Inaccuracy of measurement: ＜10% Measurement resolution ：10-5pa

      • the Vacuum Switch Measuring Instrument

    • state power world HRLGT HRLGT Type Portable Cable Fault Locator

      This is used for locating various faults of the cables for the city cable, high frequency communication cable, buried cable and medal overhead cable line. The faults include open circuit, short circuit and poor contact. It also can be used to telemetry the position of the fault, including the leak grounding, wire breaking and poor contacting. The instrument adopts many testing methods and the most advanced electron technology fruits as well as the computer technology and the microelectronic technique. It has a high degree of intelligent, a full function, a large range of use, an accurate testing, a convenient operation and alternating-current power or direct current power source. It is especially suitable for testing different types and grades voltage cables. ★The Technique File of the HRLGT (DMDL) Intelligent Cable Fault Locator ★The Technique File of the HRLGT (JKDL) Intelligent Cable Fault Locator Main Technique parameter: (1).The farthest testing distance: 32 km (2).The detecting blind area: 1m (3).Resolution reading: 1 m (4).Power dissipation：5VA (5).Weight:2kg

      • HRLGT Type Portable Cable Fault Locator

    • state power world HRWG HRWG Type Transmission Line Fault Distance Tester

      The tester is used to measure the distance between the fault point and the measuring point when the permanent earth or turnoff happened in the overhead transmission line. It is applied for the 35kv and the voltage grade above. You can tell the fault distance exactly only by examining and fixing the fault line in the transformer substation when the fault happens. It is very convenient for the maintainer to look up the fault quickly and shorten the emergency repair. Main Technique parameter: (1).Range of measuring: 1-100km (2).Inaccuracy of measurement: ≤1% (3).Output mode: 8 bit LCD display (4).Electric power source: internal-mounted 12V3AH storage battery (5).Working hours: 6 hours (6).Working temperature: 0～40℃ (7).Humidity level: RHD30～95%

      • Type Transmission Line Fault Distance Tester HRWG

    • state power world HRHLY HRHLY Loop (Contacting) Resistance Tester

      The gear is used to test the contact resistance and loop resistance of the switch controlling equipments, adopting the national standard GB763 direct current DC 100A(120A/150A). It has accurate testing, stable performance and the capability of continuously running with the self-prevention of disconnecting. Test range: 1-1999μΩ, 1-19999μΩ Test current: DC 100A， DC 200A Test accuracy: Level 0.5% , Level 1.0% Resolution factor: 1μΩ

      • Loop (Contacting) Resistance Tester HRHLY

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