Pressure reducing valve - Direct Acting for steam - REC1 | Miyawaki
Pressure reducing valve - Direct Acting for steam - REC1 | Miyawaki

Pressure reducing valve - Direct Acting for steam - REC1 | Miyawaki

The Pressure Reducing Valve - Direct Acting for Steam REC1 by Miyawaki is a high-performance valve designed to regulate and reduce steam pressure in various industrial applications. This valve operates on a direct-acting mechanism, ensuring precise control and reliability. It is engineered to maintain a consistent downstream pressure despite fluctuations in upstream pressure or flow rates. The REC1 model is known for its robust construction, ease of installation, and low maintenance requirements, making it an ideal choice for efficient steam management in systems requiring stable pressure control.
Standard (Options)
  • DIN
  • ANSI
Connection (Options)
  • BSP
  • Flanged
Material (Options)
  • Stainless Steel
Pressure Rating (Options)
  • 1,6 Mpa

Description

Features

Self acting pressure reducing valve for steam

Automatic valve that reduces the steam supply pressure to a defined set pressure.

Pressure fluctuations on upstream side are followed by the downstream side.

No external energy required

Compact and cost effective design

Can be installed in tight spaces thanks to its compact design (small/lightweight). Offers reliable operation, energy saving, and productivity improvement.

Easy handling

Pressure can easily adjusted by the topside handle.

Operating features of direct acting pressure reducing valves

Downstream pressure changes are detected in the detection chamber, and the degree of opening of the valve is directly adjusted to maintain the set pressure.

Superb durability

Most of materials are made from stainless steel, making it durable and corrosion-resistant.

Typical applications

Suitable for F&B equipment, medical equipment, bio-related equipment, and other compact steam equipments.

Dimensions/Weight

Screwed

SizeDimensions (mm)Dimensions (in)Weight
LH1H2WLH1H2W(kg)(lb)
1/2”9613863783.85.42.53.12,96.4
3/4”2,86.2
1”

Flanged

SizeDimensions (mm)Dimensions (in)Weight (kg)Weight (lb)
LH1H2WLH1H2WJIS(FF,RF)ASME/JPI(RF)JIS(FF,RF)ASME/JPI(RF)
10K,16K20K150lb300lb10K,16K20K150lb300lb
1/2”15013863785.95.42.53.14,24,43,94,39.39.78.69.5
3/4”4,54,74,35,39.910.49.511.7
1”1606.35,76,15,16,112.613.511.313.5

Specifications

ModelConnection

Max. operating

pressure

operating

pressure range

Control

pressure range

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)

(℃)(℉)
REC1-2

Screwed

Rc, Rp, NPT

1/2”1,62300,2 - 1,629 - 2300,02 - 0,22.9 - 2930:1220428

Stainless

steel

SCS14

3/4”
1”
REC1-61/2”0,2 - 1,6

29 - 230

0,18 - 0,626 - 878.9:1
3/4”
1”
REC1-101/2”0,6 - 1,687 - 2300,54 - 1,078 - 1453:1
3/4”
1”
REC1-2F

Flanged

(FF,RF)

1/2”0,2 - 1,629 - 2300,02 - 0,22.9 - 2930:1
3/4”
1”
REC1-6F1/2”0,2 - 1,629 - 2300,18 - 0,626 - 878.9:1
3/4”
1”
REC1-10F1/2”0,6 - 1,687 - 2300,54 - 1,078.- 1453:1
3/4”
1”

● Minimum differential pressure: 10% of the primary side

● Minimum adjustable flow rate:  3 to 30kg/h (6.6 to 66 lb/h)

● Lockup pressure: Up to 0,03MPa (4.4psig)

● Offset

     Up to 60% of the secondary side when secondary side pressure is 0,1MPa (14.5psig) or lower

  Up to 0,07MPa (10.2psig) when secondary side pressure exceeds 0,1MPa (14.5psig) but is less than 0,6MPa (87psig)

  Up to 0,1MPa (14.5psig) when secondary side pressure is 0,6MPa (87psig)

Capacity Chart

● How to use selection chart (example)

To reduce the pressure of 100kg/h (220lb/h) of steam from 1,0MPa to 0,5MPa (145psig to 73psig)

1. Find the point at which the primary side pressure 1,0MPa (145psig) curve and secondary side pressure 0,5MPa (73psig) 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 100kg/h (220lb/h) or more at the point where the vertical line you have traced intersects the horizontal size lines.

3. In this case, the REC1-6(F) pressure reducing valve with a size of 15A (1/2”) is optimum.