pressure reducing valve direct action REA20 designed for both compressible media such as air other gases, as well as for incompressible media such as water, oil other. The valve maintains a constant outlet pressure with a stable inlet pressure and a stable outlet steam flow. Valves of this type can be used in a wide range of pressures. All important internal parts of the valve are made of of stainless steel.
The valve cannot be used with devices that operate in pulse mode when steam is consumed or with periodic cut-off of steam at the outlet of the pressure reducing valve. In the event of a load failure, the outlet pressure will rise slightly.
Depending on the medium, pressure reducing valves can be fitted with soft or metal valve/seat seals.
Maximum reduction ratio: 25 : 1.
Outlet pressure range: 0,5 — 16 bar.
The Artezia company offers you to buy a steam pressure reducing valve REA20, which belongs to the category of direct-acting regulators (after itself). It is integrated into the pipeline by means of a flange connection. Suitable for transport lines with a diameter of 15 to 200 mm with a maximum pressure of 16 atmospheres. The steam reducing valve of this model is made of ductile iron (GGG-40/0.7040). The maximum allowable operating temperature for it is 350°C.
REA20 steam reducing valves are manufactured by the Japanese concern Miyawaki. The quality, durability and reliability of the products of this brand have been repeatedly confirmed by experience, products of this brand are used in the steam pipelines of large industrial enterprises not only in Ukraine, but also in other countries.
The sizes depend on the diameter of the line into which they are integrated. The pressure reducing valve for steam with the smallest diameter Dn 15 is 130 mm long, 289 mm high and weighs 10.5 kg. Its Kvs flow coefficient is 1.8. For comparison, the gate valve with the maximum diameter Dn 200 is much larger - 600 and 950 mm, respectively. The mass of such a product is 230 kg. The Kvs factor is 320.
Characteristics of steam pressure reducing valves REA20 Miyawaki
Ductile iron is used for the valve body of this model. For him, the maximum allowable pressure is 16 atmospheres at 20 ° C. This parameter is maintained at temperatures of 100-150°C. If the transported medium warms up to 200 degrees, the allowable pressure will be 15 atm. With each increase in temperature, the operating pressure decreases by 1°C. So for 250 degrees - 14 atm., And for 300 - 13 atm. When operating under a maximum temperature load of 350°C, the allowable pressure of transported substances for the safe operation of the valve is 11 atmospheres.
It is necessary to use a steam pressure reducing valve “downstream” in order to prevent excess pressure of the transferred medium in the system. The valve controls the flow until its power corresponds to the pressure specified in the flow chart.
To buy a pressure reducing valve at a bargain price - contact us. You can fill out and send us a feedback form or call us by phone to find out the cost of the product and terms of delivery. High-quality Miyawaki REA20 valves are always offered at Artesia at the current price.
OPERATING FEATURES OF REDUCER VALVE REA20
The valve maintains a constant outlet pressure with a stable inlet pressure and constant flow. It should be remembered that changes in inlet pressure and fluctuations in steam flow at the outlet of the pressure reducing valve can lead to a change in outlet pressure. The valve is not intended for operation modes with intermittent load disconnection. Thanks to the selection of springs, the valves of this
type can be used over a wide pressure range.
The instrument can be supplied with ductile iron, cast steel or stainless steel housings. All internal parts important for reliable operation of the valve are made of stainless steel. On request, a pressure gauge can be mounted on the valve body.
Maximum reduction ratio: 25 : 1.
Please note that in the Artesia online store you can pick up pressure reducing valves of any models and specifications. To ask questions, contact our consultants!
