Emerson 63EG-98HM Installationsanleitung PDF herunterladen (Seite 2)

Type 63EG-98HM

Note

It is important that the relief valve or

backpressure regulator be installed

so that the vent hole in the spring

case is unobstructed at all times. For

outdoor installations, the relief valve or

backpressure regulator should be located

away from vehicular trafc and positioned

so that water, ice and other foreign materials

cannot enter the spring case through

the vent. Avoid placing the relief valve or

backpressure regulator beneath eaves or

downspouts and be sure it is above the

probable snow level.

Overpressure Protection

Maximum inlet pressures depend upon body materials and







Fisher

relief

valve or backpressure regulators are NOT ASME safety

relief valves.

Startup





pressure requested, so an initial adjustment may be







Adjustment













Taking Out of Service (Shutdown)

WARNING

To avoid personal injury resulting from

sudden release of pressure, isolate the relief

valve or backpressure regulator from all

pressure before attempting disassembly.

BODY SIZE

MAIN VALVE SPRING RANGE,

SPRING PART NUMBER

AND COLOR

MINIMUM DIFFERENTIAL

PRESSURE REQUIRED

FOR FULL STROKE

(1)

BUILDUP OVER SET

PRESSURE REQUIRED

FOR FULL STROKE

MAXIMUM DIFFERENTIAL

PRESSURE

DN 50 / 2 in.





  



14A6626X012, Green

  





  28 bar

(2)



(2)

DN 80 / 3 in.





  



14A6629X012, Green

  





  28 bar

(2)



(2)

DN 100 / 4 in.





  



14A6632X012, Green

  





  28 bar

(2)



(2)

DN 150 / 6 in.

DN 200 x 150 /

8 x 6 in.





  



14A9686X012, Green

  





  28 bar

(2)



(2)







Table 1. Minimum and Maximum Differential and Buildup Required for Wide-Open Flow

MAIN VALVE BODY SIZE MAIN VALVE BODY MATERIAL END CONNECTION STYLES

(1)

STRUCTURAL DESIGN RATING

DN 50 / 2 in.

DN 80 / 3 in.

DN 100 / 4 in.

DN 150 / 6 in.

DN 200 x 150 / 8 x 6 in.



 

 

 

 



Table 2. Body Sizes, End Connection Styles and Main Valve Body Ratings

1 2 3 4

Type 63EG-98HM 1

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