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FREE-VALVEâ??s Pneumatic Ceramic Double Disc Gate Valve is mainly used in feeding and dumping the dry powder and the transport pipeline, which not only adopt toughening ceramic as shut off and wear out resistance material, but also design construction of pressure self-sealing and valve disc auto-rotate, so as to the sealing surface within the dry powder get more wear resistance in process of opening and closing frequently, thereby, which guarantee the high requirements of sealing performance of this valve and long working time.
Features:
1. Sealing pair is made of structural ceramicsï¼?which have perfect performance to resist wear and flushing.
2. Two-side sealing can realized due to double disc structure of the pneumatic ceramic double disc gate valve.
3.� It inserts spring between double valve discs to ensure self- sealing through bi-directional flexible preload pressure� of spring, having characteristics of� low pressure bi-directional sealing and without dust clogging phenomenon in the process of the opening and closing of valve.
4. The valve disc rotational motion can avoid the ash deposition on the sealing surface during opening and closing, so the valves have much longer service.
5. The blow sweep port or automatic blow sweep device can be set on the valve body according to different operating conditions.
Technical Parameters
1) Size Range: NPS2~NPS12,DN50~DN300
2) Pressure Range: Class 150 /PN6� /PN10
3) Applicable Temperature: 0~200â??
4) Connection Type: Flange
5) Sealing material: engineering ceramics
6) Pressure test:GB/T13927, API598
7) Face to Face: GB/T12221, ASME B16.10
8) Flange standards:ASME B16.5ï¼?GB/T9113
Operating Type: Pneumatic
Applications
1. Power plant ash handling system.
2. Cement industry-dry powder conveying and dumping.
3. Dressing works-dry powder materialsâ?? selection and conveying.

FREE-VALVE pneumatic rotating disc valves are designed for pressurized and vacuum systems including dense and dilute phase pneumatic conveying systems, discharge and vent applications in steel plant and coal power. The double ceramic sealing faces of the valves are well ground and polished, which is ensure a reliable sealing performance of the valve,the valve is used to replace the dome valve in the pipe line of the ash system.
Features
1. The cylinder piston rod does not contact with the medium directly, which greatly prolongs the service life of the cylinder and has a higher service temperature without damaging the cylinder.
2. The sealing faces of the valve are made toughened engineering ceramics with good abrasion resistance and prolonged service life.
3. Product with customized structural length and connection size is available.
4. The valve disc rotational motion can avoid the ash deposition on the sealing surface� during opening and closing, so the valves have much longer service.
5. The spring between the disc and disc seat is loaded with a floating connection. The spring force of the disc always matches the valve seat, ensures the sealing of the valve, and also helps to compensate for expanding� when� heated� and contracting when cooled ,and sealing surface wear.
6. The blow sweep port or automatic blow sweep device can be set on the valve body according to different operating conditions.

Technical Specification:
1) Size Range: NPS4~NPS12,DN100~DN300
2) Pressure Range: Class 150 /PN6� /PN10
3) Applicable Temperature: 0~200â??
4) Connection Type: Flange or threaded hole
5) Sealing material: engineering ceramics
6) Pressure test:GB/T13927, API598
7) Face to Face: GB/T12221, ASME B16.10
8) Valve body : GB/T12224,ASME B16.34
9)Operating Mode: Pneumatic
Application:

FREE-VALVEâ??s Rotating Disc Valves are suitable for coal fired power plant, steel plant, cereals transport system, cement transport systems. In these applications, pneumatic conveying method is used to reduce manpower demand, and improve system efficiency and reliability, and is easy to realize automation.

FREE-VALVEâ??s slurry valves are idea for bi-directional tight on-off service in abrasive slurry applications,the valve adopts the full-lined wear-resistant polyurethane injecting with the whole mold, and all media passing areas are wrapped in the polyurethane lined to achieve all-round wear-resistant protection,which provides excellent wear life with 100% positive shutoff of abrasive slurry,the Valves are designed for applications in mining.
Features
1.Bi-directional flow,zero Leakage and shut-off, allowing valves to be installed in either direction.
2.The polyurethane lined has integral flange seals, eliminating flange gaskets when installing.
3.Resilient seats can be easily replaced after removing valve from the line.
4.Full round port allows for high flow capacity with minimum pressure drop.
5.Valve plate use wear - resistant stainless steel plate with various types of wear - resistant surface treatment.
6.Wafer type can also be made if necessary

Technical Specification
1) Size Range: DN50~DN600
2) Pressure Range: PN6~PN16
3) Connection Type: Wafer,Flange
4) Seat and lined material:Polyurethane (PU)
5) Body material:WCB, CF8 ,CF8M
6) Pressure test:GB/T13927, MSS SP-81
7) Face to Face: GB/T12221, MSS SP-81
8) Operation Method:Handwheel, Lever, Bevel Gear, Chain Wheel, Pneumatic, Electric
10) Service temperature:-20�°C to 80�°C
Applications
FREE-VALVEâ??s slurry knife gate valve is designed and equipped to handle tough and abrasive shut off applications involving slurries, powders or granular substances as well as pulp stock, paper and recycled paper.Mining and minerals processing,Pulp and paper applications,Water & waste water,Sand and gravel plants,Tailing lines,Abrasive slurry materials

CR-6011 series cable type liquid level gauge is made of soft PTFE sheathed high temperature coaxial cable as sensor wire. It has the characteristics of transportationï¼?convenient installation, etc. It is suitable for continuous measurement of conductive medium under medium and low voltage reservoirs, sewage, high-temperature groundwater and acid-base solution level. It has a wide measuring range and good performance-price ratio.

The core components of the product use advanced video capacitance detection circuit to convert into a standard signal (usually 4-20mA) after 16-bit single-chip microcomputer through precise temperature compensation and linear correction. All series of transmitters have on-site calibration function, users can automatically adjust the zero pointand rangeby pressing the button to adapt to the different requirements of various complex places.

The product complies with GB3836.4-2000 Explosive gas environment electrical equipment part 4 intrinsic safety type iand GB3638.1-2000 explosive gas environment electrical equipment part 1 general requirementsexplosive-proof mark: ExdIIC T6, it applicable to the areas of Zone 0, Zone 1, and Zone 2 containing IIA~IIC, T1~T6 explosive gas mixture, and qualified by the National Explosion-proof Electrical Gas Quality Inspection Center, and obtained the explosion-proof certificate.

Performance

Range:0.2-30m

Working medium: water, sewage ,acid and alkali solution

Accuracy: 0.5

Pressure range:-0.1Mpa~1Mpa

output signal:4-20mA, 4-20mA with HART communication, 485 communication,CAN bus communication

Fixation: Screw mounting M20Ã?1.5ã??M27Ã?2ï¼?

Flange mounting DN25ã??DN40ã??DN50.Special specifications can be customized

Probe temperature resistance:-50~80

Storage temperature:-55~+125

Supply voltage:12-28VDC(Intrinsically safe type needs to be powered by safety barrier)

Fixing method:thread mounting:M20*1.5M27*2

Explosion-proof grade: intrinsically safe Exia IIC T6 flameproof ExdIIC T5

Protection level:IP67

Intrinsic safety parameters: Ui: 28VDC, Ii: 93mA, Pi: 0.65W, Ci: 0.042uf, Li: 0mH

Short Description:

The magneto-strictive level gauge is mainly used for continuous measurement of liquid level and liquid interface. Applications include: petroleum, chemical raw material storage, industrial processes, biochemistry, pharmaceuticals, food and beverage, tank management and gas station underground inventory, liquid level industrial metering and control, ship (dock), dam water level, reservoir water level monitoring and sewage treatment.

The structural part of the magneto-strictive liquid level sensor is composed of a stainless steel tube (measuring probe), a magnetostrictive wire (waveguide wire), a movable float (with a permanent magnet inside), and a precision detecting circuit.

When the sensor is operating, the circuit portion will excite a pulsed current on the waveguide wire that will generate a pulsed electromagnetic field around the waveguide wire as it propagates along the waveguide wire. A float is arranged outside the sensor probe, and the float can move up and down along the probe as the liquid level changes. There is a set of permanent magnetic rings inside the float. When the pulsed current magnetic field meets the magnetic ring magnetic field generated by the float, the magnetic field around the float changes so that the waveguide wire made of magnetostrictive material generates a torsional wave pulse at the position where the float is located,this pulse is transmitted back along the waveguide wire at a fixed speed and detected by the detection mechanism. By measuring the time difference between the pulse current and the torsional wave, the position of the float, that is, the position of the liquid surface, can be accurately determined
Product features

1)Contact measurement

2)High precision, high stability, high reliability

Long service life

4)Multiple signal output options

5)Reverse polarity protection

6)Lightning protection, anti-radio frequency interference

7)Compact structure and strong environmental adaptability

8)No need for periodic calibration and maintenance

9)Measure liquid level of tank with or without pressure

10)Isolated explosion-proof type (optional)

11)Easy installation

Technical parameter:

Output formï¼? 4ï½?20mAã??0ï½?5Vã??0ï½?10Vã??±5Vã??±10Vã??RS-485( varies from model to model)

Linear errorï¼? superior to ±0.05%FSï¼?Sensors with a range of less than 300 mm has an error of less than 150 μm

Repeaditityï¼? Superior to ±0.002%FS

Output temperature driftï¼? 50ppm/

Product power consumptionï¼? â?¤50mA

Output rippleï¼? â?¤20mV

Load capacity�4�20mA output� Load capacity�500Ω �

0�5V�0�10V output�Controller load�5KΩ

Measuring probe materialï¼? 0Cr18Ni9Tiã??1Cr18Ni9Ti

Electronic warehouse casing materialï¼?1Cr18Ni9Ti or aluminium die casting

Working principle

The product consists of a body, a flap box (composed of red and white two-color magnetic small flaps), a float, a flange cover and a liquid level transmitter. The structure is shown in the figure. The working principle is as follows: the external flap box and the transmitter are subjected to the floating body(with a directional magnetic source, which is developed according to different media and pressure)of itself turn the flipper to display red and white color, and the float is provided. The movement indicates different liquid level heights, and the liquid level transmitter transmits the liquid level signal to the control center for liquid level indication and control, and can also be centrally monitored by a computer.

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Main technical index

Measurement rangeï¼?300~19000mm

Media density: 0.5ï½?2g/cm3

working temperature:-40ï½?350

Pressure grade:â?¤32MPa

Measurement accuracy:â?¤±10mm

Transmission distance:1000m

Features and applicable places

Suitable for high temperature, high pressure, strong acid, strong alkali and explosion-proof requirements, simple structure, reliable and durable, can be installed with a variety of optional accessories to make control easier.

Install liquid level transmitter and magnetic switch, can be installed or adjusted at any time without stopping the machine

If the power supply is interrupted, the field magnetic switch will not be affected, high accuracy.

Add a color patch of different colors every 10 cm to make the liquid level easy to identify.

Suitable for waste water treatment, power plants, chemical equipment, thermal kerosene boilers and petrochemical industries.ã??



ordering instruction

1 Model Specifications 2ã??Name and density of the medium under test 3ã??Working pressure 4ã??Working temperature 5ã??Measurement range 6ã??Joint flange (standard) 7ã??Matched instrument 8ã??Special requirement

20170822204423_5937

Short Description:
The magneto-strictive level gauge is mainly used for continuous measurement of liquid level and liquid interface. Applications include: petroleum, chemical raw material storage, industrial processes, biochemistry, pharmaceuticals, food and beverage, tank management and gas station underground inventory, liquid level industrial metering and control, ship (dock), dam water level, reservoir water level monitoring and sewage treatment.
The structural part of the magneto-strictive liquid level sensor is composed of a stainless steel tube (measuring probe), a magnetostrictive wire (waveguide wire), a movable float (with a permanent magnet inside), and a precision detecting circuit.
When the sensor is operating, the circuit portion will excite a pulsed current on the waveguide wire that will generate a pulsed electromagnetic field around the waveguide wire as it propagates along the waveguide wire. A float is arranged outside the sensor probe, and the float can move up and down along the probe as the liquid level changes. There is a set of permanent magnetic rings inside the float. When the pulsed current magnetic field meets the magnetic ring magnetic field generated by the float, the magnetic field around the float changes so that the waveguide wire made of magnetostrictive material generates a torsional wave pulse at the position where the float is located,this pulse is transmitted back along the waveguide wire at a fixed speed and detected by the detection mechanism. By measuring the time difference between the pulse current and the torsional wave, the position of the float, that is, the position of the liquid surface, can be accurately determined.

Product features
1)Contact measurement
2)High precision, high stability, high reliability Long service life
4)Multiple signal output options
5)Reverse polarity protection
6)Lightning protection, anti-radio frequency interference
7)Compact structure and strong environmental adaptability
8)No need for periodic calibration and maintenance
9)Measure liquid level of tank with or without pressure
10)Isolated explosion-proof type (optional)
11)Easy installation

Technical parameter:
Output formï¼? 4ï½?20mAã??0ï½?5Vã??0ï½?10Vã??±5Vã??±10Vã??RS-485( varies from model to model)
Linear errorï¼? superior to ±0.05%FSï¼?Sensors with a range of less than 300 mm has an error of less than 150 μm
Repeaditityï¼? Superior to ±0.002%FS
Output temperature driftï¼? 50ppm/
Product power consumptionï¼? â?¤50mA
Output rippleï¼? â?¤20mV
Load capacity�4�20mA output� Load capacity�500Ω �
0�5V�0�10V output�Controller load�5KΩ
Measuring probe materialï¼? 0Cr18Ni9Tiã??1Cr18Ni9Ti
Electronic warehouse casing materialï¼?1Cr18Ni9Ti or aluminium die casting