Pressure reducing Valve - Pilot Operated for steam - RE3 | Miyawaki | Philippopoulos s.a.
Pressure reducing Valve - Pilot Operated for steam - RE3 | Miyawaki | Philippopoulos s.a.

Pressure reducing Valve - Pilot Operated for steam - RE3 | Miyawaki

Miyawaki RE3 Pilot-Operated Steam Pressure Reducing Valve

The Miyawaki RE3 is a pilot-operated pressure reducing valve designed for small to medium steam flow applications. The pilot chamber supplies the actuator section, which adjusts the main valve opening to maintain the downstream pressure at the set point. Manual adjustment is facilitated by a handle with a locking mechanism.

Technical Specifications

  • Sizes: 1/2” to 2”.
  • Connection: Threaded Rc or NPT.
  • Maximum Operating Pressure: 1.6 MPa.
  • Inlet Pressure: 0.1–1.6 MPa.
  • Outlet Pressure Setting: 0.034–1.2 MPa.
  • Kvs: 0.7–10.3 m³/h, depending on size.
  • Maximum Pressure Reduction Ratio: 20:1.
  • Maximum Operating Temperature: 220°C.
  • Body Material: Brass C3771.
  • Minimum Differential Pressure: 0.07 MPa.
  • Lock-up Pressure: up to 0.03 MPa.

Applications

Used for localized steam pressure reduction in food processing equipment, dyeing facilities, cleaning systems, heating elements, and HVAC consumers. Not intended for central stations with high flow rates; selection should be based on capacity charts with p1, p2, and steam flow rate.

Installation and Selection

Installation should include a steam filter before the valve, inlet/outlet pressure gauges, isolation valves, maintenance bypass, and condensate management with an appropriate separator and steam trap where necessary. Selection requires inlet pressure, desired outlet pressure, flow rate in kg/h, temperature, connection type, reduction ratio, and available differential pressure.

Standard (Options)
  • DIN
  • ANSI
Connection (Options)
  • BSP
Material (Options)
  • Brass CW 617N
Pressure Rating (Options)
  • 1,6 Mpa

Description

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.

Compact and cost effective design

It has a space saving (ultra small/lightweight). Low heat dissipation with superb energy saving properties and cost performance.

Superb durability

Offers superb durability thanks to an overstress prevention mechanism.

Pilot operated valves

The drive section detects the pressure supplied from the pilot chamber, and the degree of opening of the valve is adjusted to keep the pressure on the secondary side at a set level.

Simple pressure adjustment

Pressure adjustment can be performed by hand using a handle, with no tools required. (with lock mechanism)

Easy maintenance

It is easy disassembly and reassembly.

RE10N_kikou

Uses

Suitable for a wide range of uses including devices for foodstuffs, dyeing, and cleaning as well as heating equipment and air conditioning equipment.

Dimensions/Weight

technical drawing with dimensions
SizeDimensions (mm)Dimensions (in)Weight
LL1H1H2WLL1H1H2W(kg)(lb)
1/2”901278758743.553.42.32.92,76.0
3/4”951303.75.12,86.2
1”1001323.95.2
1 1/4”13015511173965.16.14.42.93.86,213.7
1 1/2”6,313.9
2”140157121791105.56.24.83.14.38,318.3

Specifications

odelConnection

Max. operating

pressure

Operating

pressure range

Control pressure

range

Values

Max.

pressure

reduction

ratio

Max. operating

temperature

Body

material

TypeSize(MPa)(psig)

Primary side

pressure

(MPa)

Primary side

pressure

(psig)

Secondary side

pressure

(MPa)

Secondary side

pressure

(psig)

CvKvs(℃)(℉)
RE3

Screwed

Rc,NPT

1/2”1,62320,1 - 1,614.5 - 2300,034 - 1,24.9 - 1740,80,720:1220428

Brass

C3771

3/4”1,91,6
1”3,02,6
1 1/4”4,94,2
1 1/2”6,85,9
2”12,010,3

● Offset: up to 0,03MPa (4.4psig)

● Minimum differential pressure: 0,07MPa (10.2psig)

● Minimum adjustable flow rate: 5% of the rated flow rate

● Lockup pressure :  0,03MPa (4.4psig) or lower

Capacity Chart

capacity chart

● How to use the chart (example)

To reduce the pressure of 400kg/h (882lb/h) of steam from 1,2MPa to 0,7MPa (174psig to 102psig)

1. Find the point at which the primary side pressure 1,2MPa (174psig) curve and secondary side pressure 0,7MPa (102psig) horizontal line intersect.

2. Trace a vertical line from the point where they intersect, and look for the smallest-sized product where the steam flow rate is 400kg/h (882lb/h) or more at the point where the vertical line you have traced intersects the horizontal size lines.

3. In this case, the pressure reducing valve with a size of 1" is optimum.

Installation Examples

installation examples

■Related Products Models for reference

Sight glass TS1,  T3

Y strainer YM1,  YSF

Separator   H3,  H5

Steam trap Differs depending on conditions