3.2.2. Sensors-relays of pressure difference (differential) 3.3. Pressure gauges, pressure gauges, differential pressure gauges 3.4. Metrological equipment 3.5. Additional equipment (pressure) 4. Flow rate 5. Level 6. Automation and secondary devices 7. Analytics

Teplopribor group of companies (GC) (Teplopribor, Prompribor, Teplokontrol, etc.)- these are devices and automation for measuring, controlling and regulating the parameters of technological processes (flow metering, heat control, heat metering, control of pressure, level, properties and concentration, etc.).

Products are shipped at the manufacturer's price as own production, and our partners - leading factories - manufacturers of instrumentation and control equipment, control equipment, systems and equipment for control technological processes- APCS (much is available in stock or can be manufactured and shipped as soon as possible).

Pressure switches DRD, DRD-N, DRD-T

Permits and technical documentation for the DRD DRD

At the request of the consumer, an order card (form) (questionnaire), a certificate, permissions for use, a product passport, technical description and operating manual for RD DRD, a description of the type and setting method, as well as other permits and technical documentation.

A detailed technical description and operation manual contains the following sections:
- purpose, description and designation of types (brand, model);
- technical data (such characteristics: measurement range (setting settings) and permissible error for operation, etc.);
- device and operation (principle of operation, design, etc.);
— operating conditions, degrees of protection and stability;
— installation, sealing, storage conditions;
- indication of safety measures during installation and operation;
- conditions of storage, transportation, rules for installation, operation and dismantling;
- tuning and reconfiguration technique;
— Maintenance and repair (faults, causes, methods and remedies);
– packaging, labeling, transportation labeling;
- weight, dimensions and connecting dimensions;
— additional equipment, spare parts and accessories (spare parts).

We will be glad if the above information was useful to you, and we also thank you in advance for contacting any of the representative offices of the Teplopribor group of companies (three Teplopribor, Teplokontrol, Prompribor and other enterprises) and promise to make every effort to justify your trust..

** Additional information, definitions and clarifications

switching capacity(switching wear resistance of contacts) the relay is characterized by the value of the power they switch, at which the contacts perform a certain number of switchings.
Switching capacity of contacts, i.e. the conditions under which the contacts operate reliably during the prescribed service life depend, firstly, on the properties of the switched circuit, secondly, on the duration of the passage of current through the contact, and, thirdly, on the switching speed.
In cases where the switching capacity of the contacts of the control key is insufficient, the circuit remote control supplemented by contactors - devices that are capable of switching significant currents.

The designation of the relay contacts on the diagrams is SPST and SPDT:
On the diagrams and on the relay housings, you can find American and English designations for contacts of the following type:
SPST - single pole, single throw: normally closed (SPST-NC or A form contact) or normally open (SPST-NO or B form contact) contact;
SPDT - single pole, double throw: changeover contact (SPDT-C/0 or C-form contact).

Pressure switches DRD designed for use in monitoring, control and regulation systems overpressure(pressure) and vacuum pressure (thrust) of gas burners, household heating installations and in technological pipeline systems for controlling the flow of natural, liquefied gas, air and other gaseous non-aggressive media.

Pressure switches DRD are used for operation in irregularly heated rooms in a temperate climate.

DRD pressure switches are designated:

DRD - X X X

1 - DRD - series designation

3 - Upper limit of pressure set point (mbar)

4 - Sensor version: H - for overpressure; T - for vacuum pressure

5 - Sensor setting type: A - to increase the measured pressure B - to decrease the measured pressure

Designation when ordering: Sensor-relay DRD-120 A TU RB 200020142.025-2000

Sensor parts are made of corrosion resistant materials(aluminum, brass, plastic, oil and petrol resistant rubber). The membrane is made of rubberized fabric and can withstand pressure up to 2 kgf/cm2. The lower body is made of aluminum alloy The lid is made of durable plastic. The set pressure value is set using a screw with a scale. Electric actuators are connected with contact clamping screws.

The sensors are connected to the system using threaded (G1/4) holes A and B. In this case, if pressure is supplied through hole A, hole B is closed with a plug and vice versa. It is recommended to install the sensor in a position where the diaphragm is vertical (the sensor is factory set to operate in this position). If the sensor is installed differently, errors occur due to the influence of the mass of moving parts, which requires a different sensor setting.

Copyright © 2008 TeploKIP. GK Prompribor. Instrumentation and control: Pressure switches DRD (TeploKIP-DRD)

The body parts of the pressure sensor-switch are made of corrosion-resistant materials (non-ferrous metal alloys, high-strength plastic, oil and petrol resistant rubber). The sensor membrane is made of rubberized fabric. The cover is made of transparent plastic.

They are connected to the system using threaded (G1 / 4) holes A and B. At the same time, if pressure is supplied through hole A, hole B is closed with a plug and vice versa. Overpressure switches DRD are connected to the system using threaded (G1 / 4) holes A and B. In this case, if pressure is supplied through hole A, hole B is closed with a plug and vice versa. It is recommended to install in a position where the diaphragm is vertical (the transmitter is factory set to operate in this position). With a different installation, errors occur due to the influence of the mass of moving parts, which requires additional adjustment of the sensor using a reference pressure gauge. If necessary, they can be connected in blocks (for example, if it is necessary to control the upper and lower pressure limits).

Are common specifications:

Parameter name	Meaning
Working environment temperature, ОС	from minus 30 to plus 60
Degree of protection according to GOST 14254	IP54
The amount of external leakage,cm 3 / h of air, no more	20
Resource of inclusions, not less	200 000
Average service life, years, not less	10

Modifications

dimensions gas pressure switches of the DRD series (membrane type)

Technical details:

Parameter name	DRD-12 A (B)	DRD-40 A (B)	DRD-120 A (B)	DRD-400 A (B)	DRD-1000 A (B)
Lower limit of pressure set point	3 mbar	10 mbar	30 mbar	0.1 bar	0.2 bar
Upper limit of pressure set point	12 mbar	40 mbar	120 mbar	0.4 bar	1.0 bar
Max working pressure	0.6 bar			1.5 bar
Operation spread, % of the upper limit of the setting, no more	±15
Return zone, % of the upper limit of the setting, no more	40	20
Weight, kg, no more	0,35

Pressure switches comply with TU RB 200020142.025-2000.

Designed for use in systems for monitoring, controlling and regulating overpressure (pressure) and vacuum pressure (thrust) of gas burners, household heating installations and in technological pipeline systems for controlling the flow of natural, liquefied gas, air and other gaseous non-aggressive media. Designation structure: DRD - X X X 1 2 3 4 5 1 - DRD- series designation 2 - Hyphen 3 - Upper limit of pressure set point (mbar) 4 - Sensor version: H- for excess pressure T- for vacuum pressure 5 - Sensor setting type (except for DRD-...T): A- to increase the measured pressure B- to decrease the measured pressure The body parts of the sensor are made of corrosion-resistant materials (non-ferrous metal alloys, high-strength plastic, oil and petrol resistant rubber). The sensor membrane is made of rubberized fabric and withstands pressure up to 1.5 bar. The cover is made of transparent plastic. The set pressure value is set using a screw with a scale. Electrical wires are connected with contact clamping screws.

Sensor name	Type of measured pressure	Dimensions, mm			Pressure range, mbar	Return zone, mbar	Weight, kg
		Length	Width	Height
DRD-12	Overpressure (pressure)	80	60	70	3...12	1...3	0,35
DRD-40					10...40	2...5
DRD-120					30...120	10...30
DRD-400					100...400	20...80
DRD-1000					200...1000	20...100
DRD-5N		90	80	80	0,6...5	0,4...1,4	0,45
DRD-10N					1...10	0,5...2
DRD-50N					5...50	1,5...12
DRD-300N					30...300	12...40
DRD-1000N					200...1000	40...100
DRD-5T	Vacuum pressure (thrust)	104			0,6...5	0,4...1,4	0,75
DRD-10T					1...10	0,5...2
DRD-50T					5...50	1,5...12

General technical characteristics of pressure switches: Climatic version - U3.1 (-30...+60°C). Working environment temperature - -30°С...+60°С Degree of protection according to GOST 14254 - IP54 The value of external leakage - no more than 20 cm3 / h The resource of inclusions is at least 9 years. It is preferable to install the sensor in a position where the membrane is in a vertical position. With a different installation of the sensor, errors occur due to the influence of the mass of moving parts, which requires additional adjustment. It is also not recommended to place the sensor with the stuffing box up to prevent moisture and condensate from getting inside the sensor (the recommended position is with the stuffing box down). Electrical wires are connected to the sensor contacts using clamping screws. For connection of wires it is recommended to use fork lugs in accordance with GOST 22002.3. The design of the sensor allows the use of a cable with a diameter of no more than 10 mm. Relay sensors are designed for switching power not more than 300 VA (cos φ=0.6) at a voltage of 220 V for circuits alternating current with a frequency of 50 Hz and 70 VA at a voltage of 24 V for direct current.

If you want to buy fittings in quantities of more than 10 tons. DELIVERY in Moscow IS FREE!!!
There is a system of discounts.
Permanent quality control of metal products - fittings a500s and a3. Buy fittings in bulk under special conditions from 20 tons of products.

New arrival:

The price is per ton per w / n calculation:

159*4- 32300r.-9 tons
159*4,5-32000r.-2 ton
159*5-31800r.-6 tons
159*6-32200r.-4 tons

Our organization offers a huge range of black steel pipes

Today, ferrous metal pipes are the most common type of pipes that are used in many industries. Black pipes are actively used in agriculture, oil and gas sector, chemical industry, engineering, private and commercial construction. On the Russian market they occur as black pipes or black metal pipes.

As a rule, black pipes are made of steel or cast iron. They are produced in accordance with modern GOSTs of the Russian Federation and TU ( specifications). The company "Stal-Pro" offers a wide range of pipes made of ferrous metal, which differ high strength and reliability.

Metal mesh

Due to its structural features, steel mesh found wide application in various industries: mechanical engineering, construction, mining, agriculture, Food Industry, and is also used as fences and fences for personal purposes.

Our company invites you to familiarize yourself with the range metal meshes, which is represented by such positions as road mesh, masonry mesh, plaster mesh, reinforcing mesh, facade mesh, chain-link mesh, galvanized net, reinforced mesh, stainless steel mesh, tspvs mesh (all-metal expanded metal mesh) and other building steel meshes.