Counters of hot and cold water vskm. Water meter VSKM Cold water meter VSKM 90 15

VSKM water meters are manufactured by PK Pribor. These are winged multi-jet devices for metering the consumption of hot and cold water. Different versions of devices differ from each other in the diameter of the conditional passage, the installation length and the volume of water to be passed.

Why do you need a VSKM counter with a pulse output

The VSKM meter is needed to accurately determine the volume of drinking or network water supplied in return and supply pipelines related to open or closed heat supply systems, hot and cold water supply. The temperature range at which the device is allowed to operate is from +5 to +90 ° C. The pressure is not more than 1.6 MPa. The operation of the device is based on measuring the number of revolutions of the impeller, which rotates at a speed directly proportional to the flow rate of the liquid flowing through the pipeline.

The equipment has a design like a dry ship. Only the impeller remains in the liquid, which rotates during operation of the device. Between it and the counting mechanism, the kinematic connection is carried out using magnetic interaction directly through the partition, which is sealed. The impeller has supporting elements, special counting mechanisms, which are equipped with special hour stones for long-term operation and optimal reliability of the meter.

Types and features of VSKM meters

The equipment of the presented type is intended for domestic and general use. A wide range of devices is available for sale, which differ in application and other characteristics.

household

Water meters for domestic use are designed to account for the consumption of drinking water. Devices are installed in private houses and cottages, in summer cottages, in apartments and small offices. The nominal bore diameter is 15-20 mm. For meters that are needed for home use, parameters such as accuracy, reliability, ease of operation and comfort of use are important.

Currently, such models of devices for domestic use are available on the market.

• VSKM 90 15;
• VSKM 90 20;
• VSKM 90 15 with pulse output.
• VSKM 90 20 with pulse output.

Structurally, the presented models include a housing with a filter, counting mechanisms that are in a glass made of a special non-magnetic material, as well as a measuring chamber.

The presented devices belong to the multi-jet type of measuring technology: water is sent through the holes to the impeller in the guide where it is located. Thanks to this feature, the accuracy of measurements is significantly improved. In addition, we can talk about the reliability of the water meter.

Specifications VSKM 90-15 and VSKM 90-20.

Parameter	VSHM 90-15	VSHM 90-20
Diameter (DN), mm	15	20
Pressure (Ru), MPa	1.6	1.6
Height, mm	85	85
Width, mm	190	230
Installation length	80/110	130
Minimum flow, m3/h	0.06	0.1
Nominal flow, m3/h	1.5	2.5
Maximum flow, m3/h	3	5
Accuracy class	A, B	A, B
Connection type	Threaded	Threaded
Temperature regime, ° С	+5 to +90	+5 to +90
Weight, kg	0.6	0.7

common house

The devices are intended for installation on water supply units in shops, medium and small enterprises, residential buildings. They most often have a nominal diameter in the range of 25-50mm. The following models of counters for general house use are available for sale:

• VSKM 90-25;
• VSKM 90-32;
• VSKM 90-50.
• VSKM 90-50F.

VSKM 90 meters are highly reliable. They have a special protection against the influence of impurities in the liquid (even if the fraction). If we talk about other models of similar devices, in them the mechanism is connected by a shaft to the measuring part. The impeller is the only part that moves in the meters. To extend the life of the most vulnerable component of the meter design, it is made of a material that is resistant to the aggressive influence of hard water and neutral to random electric fields.

Specifications for VSKM 90-25, VSKM 90-32, VSKM 90-40 and VSKM 90-50.

Parameter	VSHM 90-25	VSHM 90-32	VSHM 90-40	VSHM 90-50
Diameter (DN), mm	15	20	50	50
Pressure (Ru), MPa	1.6	1.6	1.6	1.6
Height, mm	120	120	155	185
Width, mm	260	260	300	300
Installation length	260	260	300	300
Minimum flow, m3/h	0.07	0.12	0.2	0.45
Nominal flow, m3/h	3.5	6	10	15
Maximum flow, m3/h	7	12	20	30
Accuracy class	A, B	A, B	A, B	A, B
Connection type	Threaded	Threaded	Threaded	Threaded
Temperature regime, ° С	from +50 to +90*	from +50 to +90*	from +50 to +90*	from +50 to +90*
Weight, kg	2.2	2.5	4.5	6

* There are modifications operating at temperatures from +5 to +120 ° C.

Operating conditions

Household and general house meters VSKM are designed for use in the same environment. However, different models of devices differ from each other in diameters, flow ranges, construction lengths. These parameters are recommended to be specified before purchasing the device.

Where are VSKM meters used?

Basically, counters of this type are used in everyday life. The main task is to account for hot and cold water. The presented models showed themselves perfectly when measuring the volume of water that flows through the pipelines of the city highway.

Depending on the model, it can be used on closed/open pipelines. Devices fully comply with generally accepted standards. Working pressure within 1.6 MPa is quite enough to perform regular measurements, as well as to protect against possible hydraulic shocks.

Features of installation of VSKM meters

Installation of meters should be carried out both on a horizontal pipe section and on a vertical one.

The VSKM water meter package includes a meter, accessories, passport and packaging.

Purpose and scope of the universal water meter with connectors, VSKM 90-15
Water meters VSKM 90-15 designed to measure the volume of network water in accordance with SNiP 2.04.07 and drinking water in accordance with GOST R 51232, flowing in supply or return pipelines of closed or open heat supply systems, cold and hot water supply systems in the temperature range from 5 to 90 ° C at a pressure of not more than 1 .0 MPa. The counters have a counting mechanism with roller and pointer indicators showing the measured volume in m3 and its fractions.

Brief description of the universal water meter with connectors, VSKM 90-15
The principle of operation of vane meters is based on measuring the number of revolutions of the impeller rotating at a speed proportional to the flow rate of water flowing in the pipeline.
Structurally, the counter consists of a housing with a filter, a measuring chamber and a counting mechanism placed in a glass made of non-magnetic material.
Water meters VSKM belong to the so-called "multi-jet" type of devices, when water enters the impeller through the holes in the guide, in which the impeller itself is located. This improves the measurement accuracy as well as the reliability of the water meter.

Main technical characteristics of the universal water meter with connectors, VSKM 90-15

№	Parameter name
1	Metrological class
2	Water consumption, m3/h
	- minimum, Qmin
	- transient, Qt
	- nominal, Qnom
	- the largest, Qmax
3	Maximum volume of water, m3, measured over
	- day
	- month
4	Sensitivity threshold, m3/h, no more
5	Minimum division value of the counting mechanism, m3
6	Counting mechanism capacity, m3
7	Limits of permissible relative error, %
	- in the range of costs from Qmin to Qt
	- in the range of costs from Qt to Qmax
8	Temperature of measured medium, °С
9	Measured medium pressure, MPa, no more
10	Pressure loss at the highest flow rate, MPa, no more
11	Ambient temperature, °C
12	Relative humidity,%, no more
13	Weight, kg, no more
14	Overall dimensions, mm, not more than (LxHxW)
15	Mean time between failures, h, not less than
16	Average service life, years, not less

Overall and connecting dimensions of the universal water meter with connectors, VSKM 90-15

Installation of a universal water meter with connectors, VSKM 90-15
Water meters are designed for installation on a horizontal section of the pipeline with a straight section of 5 Du before the meter and 2 Du after the meter (Du - nominal diameter).
Water meters can be installed on a vertical section of the pipeline. At the same time, they operate within the cost range corresponding to class A.

Vertical installation - class A
Horizontal installation - class B

Scope of delivery of the universal water meter with connectors, VSKM 90-15
Water meter, VSKM 90-15 - 1 pc.
Connectors - 2 pcs.
Passport - 1 pc.
Packing - 1 piece.

Intercheck interval of the Universal water meter with connectors, VSKM 90-15
- for cold water meters - 6 years;
- for hot water meters - 6 years.

Documentation for Universal water meter with connectors, VSKM 90-15
- type approval certificate,
- certificate of conformity,
- hygiene certificate,
- type description,
- passport.

• the water meter is designed for installation in private cottages, small apartment buildings and enterprises with an average water consumption;
• a universal water meter can be used to measure the volumes of both cold and hot water;
• designed to measure the volume of consumed network and drinking water with a maximum temperature of 150 ° C and pressure up to 1.6 MPa;
• a meter with a pulse output can be used as part of heat meters and in heat networks of heat supply systems to measure the volume of a heat carrier;
• due to the configuration of the meter with a reed switch sensor (DG) or MID-module, integration into an automated data collection system (ASKUE) is possible;
• can be installed in rooms with high humidity, as well as flooded wells.

Equipment options

Standard version:

• red painted cast iron body;
• threaded connection;
• the counting mechanism is equipped with a MID-sensor;
• the case of the counting mechanism is prepared for the installation of the Ministry of Foreign Affairs;

Modification of the counter with a pulse output (DG):

• standard version;
• reed sensor (MID-sensor is missing);

Flange version for VSKM 90 "ATLANT" 50F:

• standard version;
• connecting parts - flanged.

Peculiarities

• VERIFICATION INTERVAL 6 YEARS;
• SHELL PROTECTION IP68;
• the water meter is multi-jet, due to the location of the impeller in the bowl with coaxial holes, this design is highly reliable, especially under conditions of sudden pressure and flow changes;
• the length of the straight section is provided by a set of connecting parts included in the delivery set;
• fully complies with GOST R 50193 and the requirements of sanitary and epidemiological control;
• unique version of the water meter Du 50 - threaded and flanged (VSKM 90 50F);
• preservation of the declared metrological characteristics throughout the entire service life, even when working in adverse conditions;
• does not require laying electrical networks - the meter is independent of power sources;
• high overload capacity for flow and pressure;
• for the convenience of taking readings, the counting mechanism rotates 360 degrees;
• small pressure loss;
• minimum installation and operation costs;
• reliable structural protection against external magnetic influence;
• reinforced bearings made of sapphire with low friction guarantee a long service life;
• service life 12 years.

Accuracy

The multi-jet design is highly reliable. The impeller is located in a protective bowl, which divides the flow into several jets, which evens out the load on the impeller axis, thereby providing the best reading accuracy and protection against water hammer. All this affects the long-term correct operation of the devices.

Readout

The counting mechanism provides display of readings in m³ and its fractions. The front panel of the counting mechanism contains a scoreboard of 8 drums, with printed 6 mm numbers. A specially selected font of numbers allows you to accurately determine the meter readings from different viewing angles. The counting mechanism rotates 350 degrees, which maintains ease of use in any position and placement of the counter. In addition, the device has a special pointer metal indicator "MID-sensor" (in the version of the DG, the pointer is made of plastic). In addition, the counter can be equipped with a pulse sensor (DG).

Principle of operation

The principle of operation of the water meter is to measure the number of revolutions of the impeller rotating under the action of the flowing water. The number of revolutions of the impeller is proportional to the amount of water that has flowed. The rotation of the impeller is transmitted to the counting mechanism through a magnetic connection. The scaling gearbox of the counter adjusts the speed of the impeller to the values ​​of the flowing water in m³ and its fractions.

Equipment

• water meter;
• passport;
• set of connecting parts;
• a set of sealing gaskets for flanged version;
• reed sensor - for modification of DG.

Specifications

Parameter name	Parameter value
Nominal diameter, mm	15	20	25	25	32	40	50 1
Minimum consumption q min, m 3 / h:
Class A	0,06	0,1	0,14	0,24	0,24	0,3	1,2
Class B	0,03	0,05	0,07	0,12	0,12	0,2	0,45
Class C	0,02	0,025	0,04	0,06	0,06	0,1	0,15
Transitional flow rate q t, m 3 / h:
Class A	0,15	0,25	0,35	0,6	0,6	1	4,5
Class B	0,12	0,2	0,28	0,48	0,48	0,8	3
Class C	0,025	0,04	0,063	0,09	0,09	0,15	0,23
Nominal flow q n, m 3 / h:	1,5	2,5	3,5	6	6	10	15
Maximum consumption q max, m 3 / h:	3	5	7	12	12	20	30
The maximum volume of water, m 3, measured for:
day	37,5	62,5	87,5	150	150	250	375
month	1125	1875	2625	4500	4500	7500	11250
Sensitivity threshold m 3 / h, no more	0,01	0,015	0,02	0,03	0,03	0,05	0,1
Limits of permissible relative error, %, in flow ranges
from q min to q t	±5
over q t up to q max	±2
Pressure loss at q max , MPa, no more	0,1
The minimum division value of the counting mechanism VSKM 90 "ATLANT", m 3	0,0001					0,001
Capacity of the counting mechanism VSKM 90 "ATLANT", m 3	99999					999999
Mean time between failures, hour, not less than	110000
Average service life, years, not less	12
Overall dimensions of VSKM 90 ATLANT, not more than, mm
length	110 (80) 2	130	260	260	260	300	300
width	77	77	105	105	105	125	125
height	85	90	120	120	120	155	185
Weight VSKM 90 "ATLANT", kg, no more	0,6	0,7	2,2	2,2	2,5	4,5	6
The degree of protection of the shell in accordance with GOST 14254 VSKM 90 "ATLANT"	IP68
Pulse price, (l x imp.) VSKM "ATLANT" DG	ten; 1 (optional)		10			100
Notes: 1 For VSKM 90 ATLANT 2 Dimensions in brackets are for short meters

Designation when ordering

1 - 15, 20, 25, 32, 40, 50 - conditional diameter (DN), mm

2 - "X" - when used on cold water; "-" - universal

3 - DG - remote reed output

Prices for metering devices vary depending on the brand, intellectual fillings and technical characteristics. PK Pribor, a Russian company, has been working in this segment for a long time and produces VSKM 90-15 water, its price is affordable, and the quality, in some respects, is higher than foreign ones. In particular, Russian flowmeters are better able to resist the magnetic field directed from outside.

Water meter VSKM 90-15, design and specifications

Water meters intended for individual housing, as a rule, have a tachometric principle of operation. The VSKM water meter does not differ much from its counterparts - it is a two-chamber device, where the counting device, placed in a transparent capsule, is separated from the meter operating in a liquid medium.

Fully sealed counting mechanism allows short-term immersion of the device in a liquid medium. In addition, dust and moisture do not get into the capsule, which prolongs the performance of the mechanism, which consists of many gears.

Visual reproduction of consumption data, made in the form of 8 digital windows with well-defined inscriptions. The ability to rotate the top chamber 360° creates additional convenience for users. That is why, VSKM 90-15 water meter, from consumers has mainly positive.

The impeller-shaped meter is made of durable plastic approved for production in the food industry. The rotational moment from the impeller is transmitted to the scaling gearbox of the counting mechanism in a non-contact way, by means of a magnetic coupling.

The body of the lower chamber is made of a brass alloy designed for precision machining. The high level of smoothness of the body and its additional coating with peel-resistant paint completely eliminates the ingress of harmful substances into drinking water. The leading magnetic coupling half, placed in the "wet" chamber, is isolated from the influence of the magnetic field directed from the outside, with a special screen.

Operation of VSKM "Atlant" meters in automated systems of Moscow

Data accounting systems are being actively implemented in large cities. Despite the costs of its implementation, more and more residents of multi-apartment complexes are switching to automation of the transmission of flow meter readings and control over the state of engineering networks. It fits well into such systems - the VSKM 90-15 Atlant water meter, consumer reviews confirm this fact.

For successful integration of devices into the AU, the company produces water meters with a reed sensor and with a universal MID sensor. Water meters with a pulse output are equipped with a sealed contact that interacts with a magnet located on the water flow indicator. The outputs from the reed switch are connected to the storage module, data transmission from it can be carried out both by wire and by radio communication and other technical means. The contact impulse is adjusted to a certain volume of water that has passed through the meter. The impulse price varies from 1 to 100 liters and is set by the manufacturer.

The Pulse and Data Module (MID) is a sensor that, using inductance coils, takes into account the revolutions of the water meter pointer. On the arrow, as well as in the impulse version, a sensor is attached. Using a non-contact method, the sensor, by changing the quality factor of the coils, due to the circular frequency of oscillation, determines the number of turns of the pointer. The MID-sensor is installed on the counter in special sockets, without removing or disassembling the device.

Communication module MID, a self-sufficient element and remotely transmits data directly from the device, using the selected communication technology, to the base station. The built-in battery is designed for 8-9 years of continuous operation, and a stable signal is transmitted over a distance of up to 10 km. Besides:

• due to non-contact rotation control, the sensor does not affect the measuring qualities of the device;
• simple installation of the device on the front surface of the device;
• there is no clanging or rattling inherent in reed switches;
• recognizes the direction of water flow;
• additionally, it can collect information about abnormal operating conditions of the water meter.

VSKM 90-25 is suitable for house water metering units, its price is optimal and corresponds to the quality and reliability of the device. Our company, with a high level of competence, will carry out preparatory work, perform installation and commission a house unit, taking into account the water consumption at the input from the city network.

Purpose and scope of the universal water meter with connectors, VSKM 90-25
Water meters VSKM 90-25 designed to measure the volume of network water according to SNiP 2.04.07 and drinking water according to GOST R 51232, flowing in supply or return pipelines of closed or open heat supply systems, cold and hot water supply systems in the temperature range from 5 to 120 ° C at a pressure of not more than 1 .0 MPa. The counters have a counting mechanism with roller and pointer indicators showing the measured volume in m 3 and its fractions.

Brief description of the universal water meter with connectors, VSKM 90-25
The principle of operation of vane meters is based on measuring the number of revolutions of the impeller rotating at a speed proportional to the flow rate of water flowing in the pipeline.
Structurally, the counter consists of a housing with a filter, a measuring chamber and a counting mechanism placed in a glass made of non-magnetic material.
Water meters VSKM belong to the so-called "multi-jet" type of devices, when water enters the impeller through the holes in the guide, in which the impeller itself is located. This improves the measurement accuracy as well as the reliability of the water meter.

Main technical characteristics of the universal water meter with connectors, VSKM 90-25

№	Parameter name
1	Metrological class
2	Water consumption, m3/h
	- minimum, Qmin
	- transient, Qt
	- nominal, Qnom
	- maximum, Qmax
3	Maximum volume of water, m3, measured over
	- day
	- month
4	Sensitivity threshold, m3/h, no more
5	Minimum division value of the counting mechanism, m3
6	Counting mechanism capacity, m3
7	Limits of permissible relative error, %
	- in the range of costs from Qmin to Qt
	- in the range of costs from Qt to Qmax
8	Temperature of measured medium, °С
9	Measured medium pressure, MPa, no more
10	Pressure loss at the highest flow rate, MPa, no more
11	Ambient temperature, °C
12	Relative humidity,%, no more
13	Weight, kg, no more
14	Overall dimensions, mm, not more than (LxHxW)
15	Mean time between failures, h, not less than
16	Average service life, years, not less

Overall and connecting dimensions of the universal water meter with connectors, VSKM 90-25

Installation of a universal water meter with connectors, VSKM 90-25
Water meters are designed for installation on a horizontal section of the pipeline with a straight section of 5 Du before the meter and 2 Du after the meter (Du - nominal diameter).
Water meters can be installed on a vertical section of the pipeline. At the same time, they operate within the cost range corresponding to class A.

Vertical installation - class A
Horizontal installation - class B

Scope of delivery of the universal water meter with connectors, VSKM 90-25
Water meter, VSKM 90-25 - 1 pc.
Connectors - 2 pcs.
Passport - 1 pc.
Packing - 1 piece.

Intercheck interval of the Universal water meter with connectors, VSKM 90-25
- for cold water meters - 6 years;
- for hot water meters - 6 years.

Hydraulic resistance VSKM 90-25
Graph of pressure loss on the VSKM 90-25 meter (third curve on the left)

Documentation for Universal water meter with connectors, VSKM 90-25
- type approval certificate,
- certificate of conformity,
- hygiene certificate,
- type description,
- passport.