Pulse Line Miyawaki - Pressure reducing valve - With Pulse line for steam - RE20L
Pulse Line Miyawaki - Pressure reducing valve - With Pulse line for steam - RE20L

Miyawaki - Pressure reducing valve - With Pulse line for steam - RE20L

■Operating principle

This type is a pressure reducing valve with a downstream pressure sensing line (pulse line) designed for use of steam. The valve provides a precise downstream pressure even at changing inlet pressures.

Due to carefully selected springs, a wide range of pressure applications is available.

The valve is very well suited to intermittent or fluctuating loads at the secondary side.

It closes securely when the load on the secondary side will be zero.

● It can be delivered with ductile cast iron, cast steel or stainless steel housings.

● All important internal parts are manufactured in stainless steel. As option the valves can be equipped with a pressure gauge on the valve body.

  • Max. Operating Pressure
  • 2,2MPa
  • Max. Operating Temperature
  • 350℃
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
 

Features

Pressure reducing valves for steam

These are automatic valves that reduce the steam supply pressure to the certified pressure for the device in use, and keep it steady.

Due to carefully selected springs a wide range of pressure applications is available.

As option the valve can be equipped with a pressure gauge on the valve body.

Operating features of direct acting pressure reducing valves

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

Maximum pressure reduction ratio 25:1

Uses

Perfect for cleaning devices, foodstuff devices, and other forms of compact steam equipment.

Dimensions/Weight

Size

(DN)

Dimensions (mm)

Kvs

Value

Weight

(kg)

LHh
15130435821,813,0
20150663,213,0
25160665,014,5
32180817,916,0
402008313,018,0
5023064710020,034,0
6529069011334,045,0
8031082814051,061,0
10035085015480,087,0
125400715210130,0150,0
150480720235180,0180,0
200600950285320,0330,0

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
0,05-0,1628273837On request
0,1-0,16527263736
0,16-0,25426253635
0,25-0,4325243534
0,4-0,63224233433
0,63-1,0123223332

Secondary pressure ranges higher than 1,0 MPa and lower than 0,05 MPa on request available.

Minimum differential pressure :0.5 bar (DN15-50), 0.7 bar (DN65-125), 1bar (DN150-200)

Capacity Chart

Miyawaki - Pressure reducing valve - With Pulse line for steam - RE20L