Emerson LR125 Datenblatt PDF herunterladen (Seite 1)

Bulletin 71.2:LR125

D103575X012

November 2014

www.fisherregulators.com

Type LR125 Pressure Reducing Liquid Regulator

Figure 1. Type LR125 Pressure Reducing Liquid Regulator

Introduction

The Type LR125 pilot-operated, pressure reducing

regulator is designed for liquid industrial/commercial

applications. The Type LR125 provides smooth

operation, tight shutoff and long life. Its internally

actuated metal plug eliminates disadvantages

associated with  exible element style regulators, and

the specially engineered  ow path de ects debris,

protecting the seat from damage and erosion. The

Type LR125 is used in conjunction with a Type MR95H

pilot and Type 112 restrictor. An internal inlet strainer

prevents large particles from entering the main valve,

limiting damage to internal parts.

Features and Bene ts

Tight Shutoff—The Type LR125 uses a diaphragm

and metal plug, eliminating the disadvantages of

 exible element style regulators. When open, the

metal plug de ects particles and debris away from

the diaphragm. The result is enhanced resistance to

particle erosion, which provides excellent shutoff over

an extended life. When closed, loading pressure and

the main spring push the diaphragm onto the tapered-

edged seat on the cage.

• Rugged design

• Reliable

• Thoroughly tested

• Internally actuated

• Compact

• 1, 2, 3, 4 in. body sizes

• Recommended for water

and oil applications

• Full SST construction

available for harsh

environments

• API 614 Compliant

Type LR125 Pressure Reducing Liquid Regulator

1 2 3 4 5 6 ... 11 12

Bulletin 71.2:LR125 1

Inhaltsverzeichnis

Seite 1 - Bulletin 71.2:LR125

Bulletin 71.2:LR125D103575X012November 2014www.fisherregulators.comType LR125 Pressure Reducing Liquid RegulatorFigure 1. Type LR125 Pressure Reducing

Seite 2

Bulletin 71.2:LR12510Table 11. Capacity(1), Water (GPM / L/min) for 3 and 4 in. / DN 80 and 100 Bodies at % Droop (Pressure Offset Below Setpoint)(2

Seite 3

Bulletin 71.2:LR12511Figure 5. Type LR125 Dimensions Table 12. Type LR125 DimensionsBODY SIZEDIMENSIONS, IN. / mmA BD D1E GMT VIn. DN CL150 RF CL300 R

Seite 4

Bulletin 71.2:LR125The Emerson logo is a trademark and service mark of Emerson Electric Co. All other marks are the property of their prospective owne

Seite 5

Bulletin 71.2:LR125224SpecicationsThe Specications section lists the specications for the Type LR125 regulator. Factory specication is stamped on

Seite 6

Bulletin 71.2:LR1253style regulators. To prevent damage, the diaphragm is fully supported in both the open and closed positions. These features enable

Seite 7

Bulletin 71.2:LR1254Powder Paint Coating—Carbon steel body is powder paint coated providing superior impact, abrasion and corrosion resistance. Pilot

Seite 8

Bulletin 71.2:LR1255MAIN VALVE BODY SIZEMAIN VALVE BODY MATERIALEND CONNECTION STYLE(2)STRUCTURAL DESIGN RATING(3)MAXIMUM OPERATING INLET PRESSURE(3)I

Seite 9

Bulletin 71.2:LR1256Table 5. Main Valve Minimum Differential Pressures(1)MAIN VALVE BODY SIZEDIAPHRAGMMINIMUM DIFFERENTIAL, PERCENT OF CAPACITYFor 90%

Seite 10

Bulletin 71.2:LR1257RESTRICTOR SETTING CvC1Setting 2 0.0335Setting 4 0.07Setting 6 0.14Setting 8 0.17Table 8. Type 112 Restrictor Flow CoefcientsTabl

Seite 11

Bulletin 71.2:LR1258SPRING RANGE AND COLOROUTLET PRESSUREINLET 1 IN. / DN 25 2 IN. / DN 50 3 IN. / DN 80 4 IN. / DN 100psig bar psig bar 10% 20% 30%

Seite 12

Bulletin 71.2:LR1259Table 11. Capacity(1), Water (GPM / L/min) for 1 and 2 in. / DN 25 and 50 Bodies at % Droop (Pressure Offset Below Setpoint)(2) SP