Water pressure control valves RKM

Operation concept Installation of control valves Tests Costs Completeness of control valves

Models of ‘downstream’ water pressure control valves ркм 01:

Model

Capacity (throughput), m3/h

Pressure setting range, bar

Weight, kg

Ркм-01-020-01 dn50

40

From 1 to 16

7.7

Ркм-01-020-01 dn80

90

From 1 to 16

18.2

Ркм-01-020-01 dn100

100

From 1 to 16

24

 

 

 

 

 

All water ‘downstream’ pressure control valves ркм 01 are manufactured in russia!
They meet the requirements and rules of the russian federation and are in compliance with rf government regulation no. 108 dated february 17, 2016 ‘about prohibition against procurement of goods for the federal needs and for needs of sub-sovereign and municipal entities if such are goods manufactured by countries, not being the members of the eurasian economic union’.

 

Use.

Pressure control valves of ркм 01 model are designed for water pressure control in drinking and domestic water supply systems. The valve controls water pressure ‘downstream’, i.e. It limits pressure to the predetermined value downstream of its place of installation. Supply of power and other external signals and provision of devices are not required. The valve adequately reduces pressure and at the same time maintains pressure at the required value even in case of abrupt pressure swings (jumps).

Dimensions

Diameter nominal, dn

L

H1

H2

B1

B2

Weight, kg

Drawing

Cost and availability

Мм

Inches

Mm

Mm

Мм

Mm

Mm

Kg

.dwg

 

50

2

200

85

200

82.5

170

7.7

Download

Information request

80

3

290

105

215

100

185

18.2

Download

Information request

100

4

300

121

235

115

186

24

download

Information request

Чертеж РКМ 01

specifications

 

Standard

Options

Body material

Cast iron

High-strength cast iron

Diaphragm

Crude rubber

Nbr, epdm

Coating

Polyester

Epoxy

Flanges

Gost 54432-2011 (gost 12820-80)

 

Working pressure

16 ат

25 ат

A case study with the use of pressure control valve ркм installed:

There is a drinking water supply pipeline designed for several residential buildings; max. Working pressure in the pipeline is 10 bars, 5 bars is required for the system operation. To solve this problem the valve of ркм 01 model shall be installed on the pipeline, in this regard there is no need for power supply, pipeline junction is sufficient with the valve installed between flanges. The valve is easily adjusted to maintain 5 bars pressure, i.e. It automatically controls pressure maintaining it at 5 bars. If pressure upstream of the valve is 6 bars, it will be reduced to 5 bars downstream of the valve. If pressure upstream of the valve is 7 bars, it will be repeatedly reduced to 5 bars downstream of the valve, so the situation remains the same with any change in pressure upstream of the valve.

Design

конструкция регулятора РКМ

Pressure control valves ркм 01 are of a simple and reliable design: there are no spindles, bearings and gaskets subject to corrosion and wear. A reinforced rubber diaphragm is the only moving element that exercises control. It serves as a drive and a gasket at the same time.

конструкция регулятора РКМ

Thanks to a hydraulic pilot governor valve (a special hydraulic multi-way valve) pressure control valve ркм 01 maintains the given outlet pressure that is independent of inlet pressure and flow rate fluctuations.

конструкция регулятора РКМ

 

Operation concept.

The valve is under control mode.

If increase in pressure exceeds the required value upstream of the valve, water flow moves through an impulse tube to the pilot governor. Due to the valve spring compression a channel in the pilot governor opens and water comes into the chamber above the diaphragm. The chamber is filled with water. The diaphragm is bent to the pilot governor seat. The opening area of the valve is shut off; due to this fact the pressure downstream of the valve remains at the required level. if pressure upstream of the valve decreases, the spring in the pilot governor releases, the channel opens as a result and water is removed from the chamber above the diaphragm. In this regard the diaphragm moves and the valve opening area opens, in doing so the pressure again remains at the required level. Pressure control valves ркм 01 also maintain the pressure predetermined in the pipeline in case of flow rate fluctuations.

Certificates

Spc promvodochistka ltd manufactures pressure control valves of ркм 01 model in accordance with the requirements of gost iso 9001 2011 quality standard. All valves have been certified in compliance with technical regulations of the customs union.

ИСО регулятор давления РКМДекларация соответствия регулятор давления РКМ

Tests

Prior to packaging and shipment the pressure control valves of all types and dimensions shall undergo tests on a special test bench. The bench fully simulates the valve operation modes required. Upon successful test completion the quality control department specialists put their stamp on products.

Tests of water pressure control valves ensure 100% quality.

Регулятор давления РКМ Регулятор давления РКМ

Регулятор давления РКМ Регулятор давления РКМ

Installation

Pressure control valves ркм 01 may be installed both in vertical and horizontal positions. We recommend installing shutoff and air valves upstream and downstream of the pressure control valve. Shutoff valves locally isolate the pipeline thus making convenient servicing of pressure control valves possible. And air valves are capable of removing air entrained into the water course. In such a way stable operation of the valve under the control mode is provided for.

We also recommend mounting a strainer (sediment trap) upstream of control valve ркм 01; this strainer removes large particles from water in order to prevent clogging of the pilot governor valve.

Расположение регулятора давления РКМ 

Advantages:

  • Simple design includes 3 main items –the simpler the design, the more reliable operation;
  • Free of friction - there is no wear and there is no replacement of parts;
  • Hydraulically accurate control loop –adjustment at any flow rate value;
  • Operation at any temperature -from +1oс to +120oс;
  • High working pressures– up to 25 bars;
  • Failure free operation period – 10 years;
  • Automation – may be integrated into automatic control systems.

 

Complete sets of control valves.

Spc promvodochistka ltd offers 4 standard sets of pressure control valves ркм. You may order customized completeness of pressure control valves ркм based the parameters offered:

Technical characteristics

Ркм-040-020-01

Ркм-030-020-01

Ркм-020-020-01

Ркм-010-020-01

Body – cast iron

   

Body – high-strength cast iron

   

Cover – cast iron

   

Cover – high-strength cast iron

   

Diaphragm made of crude rubber

     

Diaphragm made of epdm

 

   

Diaphragm made of epdm with single layer reinforcement

   

 

Diaphragm made of epdm with double layer reinforcement

     

Steel spring

   

Steel spring with galvanic coating

   

 

Stainless steel spring

     

Pilot governor valve made of brass (china)

   

Pilot governor valve made of stainless steel (russia)

   

 

Pilot governor valve made of stainless steel with more precise operation (israel)

     

Impulse tubes made of polyethylene

   

Impulse tubes made of polypropylene

   

Fitting kit pn10

   

Fitting kit pn16 (made of brass, nickel-plated with collet coupling (quick release, push-in)

   

Pressure gate at the valve outlet

 

   

Precision pressure gages at the inlet/outlet

   

Ball valve (2 pcs.)

   

Corner filter

   

 

Self-cleaning strainer

     

Needle cock for control of the valve opening/closing rate

   

Powder painting

   

Body polymer epoxy coating

   

 

Multilayer body polymer epoxy coating

     

Spare parts kit

     

Mating flanges and fasteners kit

     

1 year of guarantee

   

2 years of guarantee

   

 

3 years of guarantee

     

Valve setting up to the parameters required and functional test.

     

 

Cost of water pressure control valves.

If you want to know the cost of pressure control ‘downstream’ valves ркм, please send a request to info@prom-water.ru or fill in the form on the web-site. Our consultant will provide you with information within 15 minutes.

The cost of pressure control ‘downstream’ valves ркм depends on a delivery completeness so for this reason prior to sending the request (download the file) select the required completeness of the pressure control valve and indicate it in the letter. You are also asked to fil in the questionnaire which helps us to submit the cost as soon as possible.

 

Knowledgebase: other useful information about water pressure control valves.

Pressure control ‘downstream’ valves. Distinctive features and specifications.

Use of nonstandard pressure control valves to solve non-routine problems.

Make a wise choice of pressure control valves!