Flowserve RG Series Standard Actuator Instrukcja Użytkownika Pobierz pdf (Strona 11)

User Instructions RG Series Standard Actuator - AXENIM0122-00 12/09

7 Long Term Storage

It is recommended to take precautions and certain

measures when storing the actuators for extended

periods of time, more than 4 months to two years.

Potential problems and recommended protections

are as below:

6 Torque Shaft

The output shaft is recommended to have two key en-

gagements. Shaft material shall be alloy steel with mini-

mum yield strength of 85,000psi. The recommended

hardness of keys is 25-28HRc.

Recommended engagement length of the keys is as be-

low (see Fig.: 3).

Model L

(mm) L

(mm)

RG1

165 180

RG2

195 210

RG3

200 215

RG4

255 270

RG5

300 315

RG6

350 375

RG7

500 515

RG8

585 610

Potential Problem Protection

Water entry into pneumatic cylinder, degrades the cylinder, par-

ticularly in saline or corrosive environment.

Temperature swings cause condensation inside cylinders

• Store actuator in clean, dry and protected warehouse, or un-

der ventilated dust cover.

• Plug all ports after purging with dry instrument air or nitro-

gen.

• Store vertical, to avoid seal set.

Seal compression set Cycle actuator 5-6 times with clean dry instrument air or nitro-

gen, every 3 months.

Degradation of seals in excessively corrosive or hot environ-

ments

• Do not store in locations subjecting the actuator to tem-

peratures in excess of seal rating. Std seals are Nitrile, max

temp 180deg F.

• Do not store in environments harmful to resilient seals.

Physical damage to actuator or accessories. Store actuator assembly on skid, off the floor, out of pathways.

Inspect the protections every 3 months and record inspection results.

Fig.: 3 Key Length

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

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