With Good Explosion-Proof Performance 4-WIRE FAST CLOSING VALVE

With Good Explosion-Proof Performance 4-WIRE FAST CLOSING VALVE

We produce various civil,industrial and commercial Motor Valves for Smart Gas Meter (G1.6~G40) suitable for various manufacturers with good sealing, durability and explosion-proof performance, resistance to soaking, salt spray resistance, low power consumption, short switch time,etc. Our products have passed the European DVGW explosion-proof certification, A-tex, IECEx explosion-proof certification and national valve quality supervision and inspection center certification, won the praise of the domestic market.

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Product Details

1.Basic specs

Service Fluid

Natural Gas/LPG/air and other noncorrosive gas

Flow-rate Range

0.016m³/h~6m³/h

Operating Pressure Range

0kPa~15kPa

Relative Humidity

≤93%RH

Operating Temperature

-20℃~+50℃

Storage Temperature

-25℃~+60℃

Pressure Loss

≤50Pa

Leakage

Internal Leakage

In the pressure range of 1.8kPa~15kPa,Leakage<0.04m³/h

External Leakage

Free of leakage under 15kPa pressure while the valve stays open

Leakage at wire connection

Free of leakage under 75kPa pressure

Durability

Free of malfunction after more than 10000 times of operation cycle

Cyclic Corrosion Resistance

Degree of rust meets the standard of Ri 1 in GB/T 30789.3—2014 sheet 1, under 500hr cyclic corrosion test

Immersion Resistance

Free of malfunction after 96h immersion in 98% pentane solution under(23±2)℃

Operating Voltage

DC2.5~5.5V

Operating Current

≤80mA(DC5.5V)

Peak Current

≤400mA(DC5.5V)

Valve opening time

≤3S(DC2.5V)

Valve closure time

250mS~300mS (DC2.5V)

Backup battery

Capacitance:≥3300μF

Compatible with

CHINT Steel Case Diaphragm Gas Meter

Explosion Proof

Explosion proof certificate under the standards of GB 3836.1、GB3836.4、GB 3836.8

2. Instruction
1. This valve is four wires valve, of which when green wire is for opening valve that connects to “-” pole and closing valve that connects to “+” pole; when grey wire is for opening valve that connects to “+” pole and closing valve that connects to “-” pole. Another two yellow wires connect to power switches.
2.Valve opening process is that when green wire connects “-” pole and grey wire connects “+” pole. When quality control device detects that valve opens to position, leave it for 100ms before power off.
3.Valve closing process is that when green wire connects “+” pole and grey wire connects “-” pole.
4. Current given by the valve control panel should be greater than the peak current of motor.
5. Strictly follow the specs given by this instruction for test or operation in order to prevent the valve from malfunction.
6.In order to test for internal leakage of gas meter, use the air intake hole of the gas meter. Using the air outflow hole violates the designed mechanism of gas valve, and sealing performance is not ensured.
7.In order to test for external leakage of gas meter, open the valve first. Otherwise, the valve sealing cap may fall off.
8. If the parameters and structure of this internal valve changes, our company will promptly inform your company.

 

A.Key technologies:

- The actuator and the valve body are made into separate bodies, each of which is an assembly versatile, improving product consistency with strong universality;

- a raised column is installed on the mechanism box assembly, and a plurality of limiting protrusions are symmetrically installed on the outer peripheral wall of the raised column to match the limit stop on the pilot hole, realizing fixed joint between valve assembly  which improves the reliability of the connection, making it easy to  install and dismantle;

- For different types of the gas meter, the same mechanism box assembly can be shared, which ensures the consistency of the drive control of the valve assembly to avoid the redesign and manufacture of the mechanism box assembly;

- Modular manufacturing can be carried out separately, which not only increases efficiency but also reduces production costs.

B.Main parameters:

Working medium: natural gas, liquefied petroleum gas;

Flow range: 0~6m3/h

Operating voltage: 2.5 to 5.5V;

Operating current ≦80mA

Opening time: ≤3S; Closing time: ≤0.3S

Working life: 10,000 times;

Service life: ≤12 years

C.Advanced Technology(characteristics):

- Split-body assembly design can be installed with different valve bodies to achieve a variety of structural combinations of motor valve;

- With clip-on connection, the actuator and the valve body can work together more quickly, greatly improving efficiency;

- Beautiful appearance, compact structure, and low material cost;

- Due to passing the European explosion-proof certification, the explosion-proof performance is superior to similar products.

Patent No.: ZL201720512321.9

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