Safety shut-off valve electromagnetic kpeg. Gas electromagnetic safety valve, modernized KPEG-M Technical characteristics KPEG-M

Gas shut-off valve with electromagnetic drive high pressure KPEG-M is intended for use as locking device gas pipelines with a working medium in the form of hydrocarbon gases and conditional pressure up to 1.2 MPa (up to 12 kgf/m²).

The valve is charged manually. The valve is activated when the power supply to the electromagnet is interrupted.

Electromagnet supply voltage ~220 V, 50 Hz. The valve contains a status sensor (open/closed).

The KPEG-M valve can be used as part of the SAKZ-MK system or in other similar systems.

Technical characteristics of KPEG-M

Design and principle of operation of KPEG-M

The valve has (see figure) a body 1 with a seat, which is closed by valve 2 with rubber seal 20, fixed to the axis 3. At the end of the axis extending outwards, a lever 6 is rigidly fixed, which is engaged with the lever 7. An electric drive is fixed to the housing 1, consisting of an electromagnet 8 with a housing 9, in which a rod 10 with a sleeve 11 is located.

The body of the electromagnet 9 is equipped with a latch located on the axis 17. The latch serves to hold the valve open during technological preparation of the equipment. The gas supplied to the valve passes through the inlet pipe to the outlet pipe if the voltage corresponding to this design is supplied to the electromagnet 8.

When the supply of voltage to the electromagnet is stopped, the sleeve 11 moves under the action of the spring 13. The stop 12, installed on the lever 7, disengages from the sleeve 11, releasing the interconnected levers 6 and 7, allowing the axis 3 to rotate.

The force from springs 4 and 5 is transmitted to valve 2. Valve 2 closes the gas passage.

1 - body; 2 - valve; 3 - axis; 4, 5 — springs; 6, 7 — levers; 8 - electromagnet; 9 — electromagnet housing; 10 - rod; 11 - bushing; 12 — emphasis; 13, 14 — springs; 15 - pin; 16 — clamp; 17 - axis; 18 - screw; 19 — bracket; 20 - rubber seal

Gas electromagnetic safety valve
KPEG-50, KPEG-100 .

Gas safety shut-off valve with electromagnet of the KPEG series with tightness class “B” and KPEG-G burner with tightness class “A”.
Purpose: The gas electromagnetic safety valve KPEG is intended for use as a shut-off device in systems automatic control gas pipelines with a working medium in the form of hydrocarbon gases according toGOST 5542-87 and conditional pressure up to 1.2 MPa (up to 12 kgf/m2).
The valve contains a status sensor (open/closed), which significantly expands its functionality and allows the valve to be included in automatic gas control systems using CO alarms ( carbon monoxide) CH4 (natural gas).
Operating principle: The valve closes when the power supply is interrupted. The valves are opened only manually when the power supply is restored, thereby eliminating the possibility of arbitrary opening of the valves.
Type of climatic version UHL4 GOST15150-69.
Two types of electromagnets with different supply voltages 24V can be installed on the CPEG valve direct current and 220V AC.
At the customer's request, the valves are equipped with gas sensors.
Safety shut-off valve for gas control:
KPEG-50-SN.SO (SAOGs SO), KPEG-50-SN (SAOGs SZ), KPEG-50-SO, KPEG-100-SN.SO, KPEG-100-SN, KPEG-100-SO.
Note - During installation, it is allowed to install KPEG-50, KPEG-100 vertically. In this case, the valve of the shut-off element should be located at the top, and the magnet mechanism should be rotated 90 degrees relative to its axis. The latch must be located in a vertical plane.

Design and principle of operation of the electromagnetic gas valve CPEG.
1 . The KPEG valve has a body 1 with a seat in accordance with Figure 1. The body seat is covered by a valve 2 with a rubber seal 20. Valve 2 is mounted on an axis 3, which is located in the body 1. Springs 4.5 are installed on the axis 3. At the end of the axis 3, extending outwards, a lever 6 is rigidly fixed, which interacts with the lever 7.

2. An electromagnetic drive is fixed to the housing 1, consisting of an electromagnet 8 with a housing 9, in which a rod 10 with a sleeve 11 is located (see Figures 2 and 3). The position of the sleeve 11 is determined by the force of the springs 13, 14 and the force of the electromagnet 8, transmitted to the rod 10 by a pin 15, made of non-magnetic material. The body of the electromagnet 9 is equipped with a latch 16 located on the axis 17. The latch serves to hold the valve open during technological preparation. The latch 16 should rotate freely on the axis 17 without jerking or jamming under the influence of gravity.

3. The gas supplied to the valve passes through the inlet pipe to the outlet pipe if the voltage corresponding to this design is supplied to the electromagnet 8. The latch 16 in accordance with Figure 3 must be turned off (i.e., the latch must take a horizontal position). When the supply of voltage to the electromagnet is stopped, the sleeve 11 moves. The stop 12, installed on the lever 7, disengages from the sleeve 11, releasing the interconnected levers 6 and 7, allowing the axis 3 to rotate. The force from springs 4 and 5 is transmitted to valve 2, and valve 2 closes the gas passage.

4. Bringing valve 2 into operating condition after actuation is done manually by turning lever 6, while the bypass valve built into valve 2 opens first. After equalizing the pressure before and after valve 2, lever 6 is further raised until it engages with lever 7 and fixes them with sleeve 11 (see Figure 2). Valve 2 is held in open position. The electromagnet is connected to the network. The latch is turned off in accordance with Figure 3. The valve is ready for operation.

Figure 2 - Latch on Figure 3 - Latch off
The dotted line shows the position of the sleeve 11 after applying voltage to the electromagnet. Spring 13 is not shown.

Schematic diagram
safety shut-off valve with electromagnet, KPEG series.


Main parameters and dimensions of KPEG valves.

Safety electromagnetic CPEG valves designed for hermetically shutting off the supply of non-aggressive hydrocarbon gases in automatic control systems for gas-using devices.

Safety electromagnetic CPEGs automatically close when the electrical power is turned off. Opening is done manually when power is supplied. Random opening solenoid valves excluded.

CPEGs are manufactured in the climatic version UZ GOST 15150 (from -40C to +45C), and in standard sizes with nominal diameter DN 50, DN 100, DN 200:

KPEG-50, KPEG-100, KPEG-200

Powered by DC mains with levers located on the right side along the gas flow;
KPEG-50L, KPEG-100L, KPEG-200L
- powered from a DC network with levers located on the left side along the gas flow;
KPEG-50P, KPEG-100P, KPEG-200P
- powered by AC mains with levers located on the right side along the gas flow;
KPEG-50PL, KPEG-100PL, KPEG-200PL
- powered by AC mains with levers located on the left side along the gas flow.

Safety solenoid valves KPEG
main technical characteristics

Safety solenoid valve KPEG (drawing)

Maintenance of KPEG valves

Inspection of technical condition within the time limits established by the instructions and ensuring safety and reliability in operation.
Maintenance at least once every 6 months.
Current repairs at least once every 5 years.
Inspection of the technical condition (walk-through) must be carried out by two workers.

When inspecting the technical condition of the valve, the following must be monitored:
no gas leaks using soap emulsion; presence of minor damage.

When servicing the valve, the following must be performed:
Checking the tightness of the valve closure;

During annual maintenance, the following is carried out:
- disassembling the valve and cleaning it from corrosion and contamination;
- repair and replacement of worn parts;
- checking the reliability of fastening of components that cannot be disassembled;
- work provided for during maintenance.

Preparation of CPEG for use

To check the gap (0.5...1) mm. use a set of probes No. 4, accuracy class 2 TU 2-034-225-87.

Placement and installation of CPEG

1. Place the valve in the operating position on a horizontal section of the pipeline with the electromagnetic drive upward. The direction of gas flow must match the direction of the arrow on the valve body.
2. Ground the valve.
3. Installation and connection of the valve must be carried out by specialized construction, installation and operational organizations in accordance with the approved project, technical specifications for construction and installation works, “Rules technical operation and safety precautions in the gas industry in the RSFSR", "Safety Rules in the Gas Industry", "Rules for the Construction of Electrical Installations" (PUE), as well as this passport.
4. Pressure testing of the pipeline is carried out in accordance with current rules, in this case the valve must be completely shut off by installing blind gaskets between the flanges. Pressure testing with water is prohibited.

Use of CPEG in work:

1-body; 2 - main valve with secondary bypass valve; 3 - axis; 4 - valve lever; 5 - valve stem; 6 - valve spring; 7 - washer; 8 - valve lever; 9 - adjusting screw; 10 - lever; 11 - stop; 12 - stand; 13 - cover; 14 - bracket; 15 - electromagnet; 16 - body; 17 rod; 18.19 - spring; 20 - pin; 21 - clamp; 22 - axis; 23 - tip.

Design and principle of operation of CPEG

The safety shut-off valve with an electromagnetic drive consists of a flanged housing of 1 valve type.
Inside the body there is a seat, which is closed by the main valve 2 with a rubber seal and a built-in bypass valve.
The valve hangs on a rod 5, the upper end of which moves in the hole of the cover 13, and the lower end along the guide post of the body.
The valve stem by means of a pin engages with a lever 4 mounted on axis 3. A washer 7 is installed on the upper end of the stem with a valve drive spring 6 clamped between the washer and the cover. The axle coming out of the housing is sealed using rubber rings.

At the end of the axis 3, which extends outwards, a lever 8 is rigidly fixed, which, through an adjusting screw 9, is engaged with a lever 10 installed in a rack 12 fixed to the cover 13.

A bracket 14 with an electromagnet 15 and a housing 16 is attached to the cover 13. The housing contains a rod 17 with a tip 23 (see Figures 2 and 3).
The position of the tip 23 is determined by the difference in the forces of the springs 18, 19 and the force of the electromagnet 15, transmitted to the rod 17 by a pin 20 made of a non-magnetic material. The body of the electromagnet 16 is equipped with a latch 21 located on the axis 22. The latch serves to hold the valve open during technological preparation. The latch should rotate freely on the axis without jerking or jamming under the influence of gravity.

Valve operating principle:

The valve operates as follows: the gas supplied to the valve passes through the inlet pipe to the outlet pipe if the voltage corresponding to this design is supplied to the electromagnet 15. The latch 21 in accordance with Figure 3 must be turned off, the latch must be disengaged from the tip 23 and take a horizontal position).

When the voltage supply to the electromagnet is stopped, the tip 23 moves along the axis. The stop 11, mounted on the lever 10, disengages from the tip 23, releasing the interconnected levers 8 and 10, allowing the axis 3 to rotate and the valve 2 to close under the action of the spring 6.

Bringing the main valve 2 into working condition after actuation is done manually by turning the lever 8, while the rod will first move, as a result the bypass valve built into the main one will open. After equalizing the pressures before and after the main valve 2, the lever 8 is further raised until it engages with the lever 10 and fixes them with the tip 23 (see Figure 2).

Valve 2 is held open. The electromagnet is connected to the network. The latch is turned off in accordance with Figure 3. The valve is ready for operation.

The use of solenoid valves is justified if the gas control point is located at a great distance from the gasification facility, and also if the reduction point is equipped with a telemetry complex - in this case, monitoring the operation of the installation is greatly simplified. A valve with an electromagnetic drive can be closed forcibly, at a distance, both in the event of controllable parameters leaving the specified limits, and during normal operation, for carrying out preventive inspections or other actions of maintenance personnel.

Find out the price, buy valves KPEG-50, KPEG-100, KPEG-200

Prices for CPEG valves are available upon request. To buy valves, you must leave a request in any way convenient for you - by phone, through email or by filling out the online form at the bottom of the site.

The KPEG electromagnetic valve is designed to stop the gas supply. Used in automatic control systems for gas burner devices. Triggering occurs only when the power supply is interrupted. The valve is opened manually.

FEATURES AND BENEFITS:

1. Short response time (no more than 1 second). Thanks to this, the gas supply will be shut off almost instantly.
2. Easy to install. Thanks to its small dimensions and flange connection, the KPEG valve can be installed in a short time without the use of complex equipment.
3. Small dimensions and mass. Even the relatively large KPEG 100P can be installed in a small room.
4. Easy to maintain. Maintenance of solenoid valves 50P and 100P should be carried out once every 6 months. At the same time, the absence of gas leaks and minor damage, as well as the tightness of the valve closure, are checked.
5. Low cost of repairs. Parts for a 50P or 100P valve of domestic production can be purchased from any specialized company at an affordable price.
6. Reliability. Thanks to the thoughtful design and quality materials Even with intensive use, the valve will last for decades.