Emerson EZH and EZHSO Series Pressure Reducing Regulators Manual de instrucciones descargar pdf (Pagina 11)

Type OS2

Releasing by Max. and Min. (Diaphragms

or Bellows Only)

• Adjusting the releasing screw

Free the min. hook (key 2).

Then in the following conditions:

- setpoint spring decompressed (adjustment screw

(key 5) unscrewed),

- pressure equal to the max. releasing pressure required

in the BMS,

adjust the releasing screw (key 1) to X = 0 mm (detection

stage set).

Release manually.

Unscrew the releasing screw (key 1) 2 turns, which

represents a distance of approximately 1.5 mm.

Jam nut (key 3).

• Max. adjustment

Same procedure as paragraph “Adjusting max. only

releasing pressure”

• Min. adjustment

Admit an average pressure between max. and min.,

(for example: regulator set-point pressure).

Set the slam shut.

Admit a pressure equal to the min. Pd min. releasing

pressure required.

Adjust the hook (key 2) by progressively moving nuts

(key 6) and (key 7) until it releases.

Jam nuts (key 6) and (key 7).

Check the pressure value at the releasing point (adjust

if necessary).

Type BMS 2 with 1 Max. Only Type BMS 1

Releasing by Max. Only

• Adjusting the max. push button

Remove the hook (key 2).

Then in the following conditions:

- no pressure in the BMS,

- setpoint spring compressed so that the distance

between the push button (key 1) and the pin D2 no

longer increases,

Adjust the push button (key 1) to X = 1.5 mm (detection

stage set).

Jam nut (key 3).

N23

MAX. ONLY TYPE BMS1

ADJUSTMENT

• Adjusting the max. only releasing pressure

Same procedure as paragraph “Adjusting the max. only

releasing pressure”.

Releasing by Min. Only

• Adjusting the min. only releasing pressure

Remove the max. push button (key 1) or screw it tight to

neutralize it.

Jam nut (key 3).

Then in the following conditions:

- setpoint spring decompressed (adjustment screw

(key 5) unscrewed),

- pressure equal to releasing pressure required in the

BMS, adjust the min. hook (key 2) to Y = 1.5 mm

(detection stage set).

Jam nut (key 6).

• Adjusting the min. only releasing pressure

Same procedure as paragraph “Adjusting max. only

releasing pressure”.

Releasing by Max. and Min.

• Adjusting the push button

The min. hook (key 2) is completely unscrewed.

Then in the following conditions:

- setpoint spring decompressed (adjustment screw

(key 5) unscrewed),

- pressure equal to the max. releasing pressure required

in the BMS.

adjust the push button (key 1) to X = 0 mm

(detection stage set).

Release manually.

Unscrew the push button (key 1) 2 turns, which represents

a distance of approximately 1.5 mm.

Jam nut (key 3).

• Adjusting the releasing pressure to max. and min.

Max. adjustment

Same procedure as paragraph “Adjusting the max. only

releasing pressure”.

Min. adjustment

Admit an average pressure between max. and min.,

(for example regulator set-point pressure).

Set the detection stage.

Admit a pressure equal to the min. releasing

pressure required.

Screw the hook (key 2) progressively until detection

stage release.

Jam nut (key 6).

Check the pressure value at the releasing point

(adjust if necessary).

1 2 ... 6 7 8 9 10 11 12

RELEASE RELAY 1
Type OS2 10

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