Pressure reducing valve - Direct Acting for steam - REC20 | Miyawaki
Pressure reducing valve - Direct Acting for steam - REC20 | Miyawaki

Pressure reducing valve - Direct Acting for steam - REC20 | Miyawaki

The REC20 by Miyawaki is a direct-acting pressure reducing valve specifically designed for steam applications. This valve efficiently regulates and reduces steam pressure to a desired set level, ensuring optimal performance and safety in steam systems. Its direct-acting mechanism allows for precise control and quick response to pressure changes, making it ideal for various industrial applications. The REC20 is known for its reliability, durability, and ease of maintenance, making it a preferred choice for engineers and technicians working with steam systems.
Standard (Options)
  • DIN
Connection (Options)
  • Flanged
Material (Options)
  • EN-GJS-400-15 (Nodular Cast Iron)
  • Ductile Cast Iron
Pressure Rating (Options)
  • PN 16
  • PN 25

Description

Features

Self acting pressure reducing valve for steam

This valve reduces the steam supply pressure to a defined outlet pressure and keeps it steady, even under downstream fluctuations . The valves needs no seperate energy source.

Wide range of pressure reduction

Due to carfefully selected springs an outstanding reduction ratio of 25:1 is achieved.

Superb durability

Highly durable and carefully selected components, a 360° free rotating, conical plug and the lack of a sensitive diaphragm ensure outstanding lifetime of this valve.

Operating features of direct acting pressure reducing valves

Pressure changes on the downstream side are detected in the detection chamber, and the degree of opening of the valve is directly adjusted to keep the pressure on the downstream side at set pressure.

Diaphram free design

The valve operates with an O-ring sealing and a piston design. Due to this design, no daiphragm and no external sensing line is required.

Options available

- additional pressure gauges

- tailored connections for special applications

- softsealing for leakage class VI

Typical applications

Perfect for all applications with medium to high steam flow or high reduction. In particuliar power plants, chemical and petrochemical process applications, ships, food and beverage plants, and other similar installations of of compact steam equipment.

Dimensions/Weight

Size
(DN)
Dimensions (mm)

Kvs

Value

Weight

(kg)

LHh
15130410821,812,0
20150663,212,0
25160

66

5,013,0
32180817,916,0
402008313,018,0
5023058610020,037,5
6529061511334,043,0
8031073314051,058,0
10035076215480,077,0
125400715210130,0155,0
150480720235180,0190,0
200600950285320,0385,0

Specifications

Body Material

Ductile cast iron

EN-GJS-400-15

(GGG-40,0.7040)

Body design conditions

 PN16PN25
Max. design pressure (MPa)           PMA1,62,5
Max. design temperature (℃)        TMA350350
Max. operating pressure (MPa)     PMO1,52,2
Max. operating temperature (℃)  TMO350350

Pressure - Temperature rating

PNTemperature ℃
-10・・・+50100150200250300350
Pressure MPa
PN161,61,61,61,51,41,31,1
PN252,52,52,42,32,22,01,8

Secondary pressure ranges

Secondary

pressure range

DN15-DN40DN50DN65DN80DN100DN125-DN200
MPaSpring number per size
0,05-0,1928273837On request
0,1-0,16827263736
0,16-0,25726253635
0,25-0,4625243534
0,4-0,63524233433
0,63-1,0423223332
1,0-1,6322213232

Secondary pressure higher than 1,6 MPa on request

A minimum differential pressure of 0,05 MPa is required.

Steam Flow Rate