Armstrong GP-2000R Інструкції з монтажу, експлуатації та технічного обслуговування - Сторінка 4
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Друкувати сторінкуGP-2000-R Startup and Adjustment Procedures
Improper adjustment of the pressure reducing valve may cause hunting, improper control and possible damage to the
valve itself. Adjust the valve as follows:
1. Close the gate valves before and after the pressure
reducing valve and blow fluid through the by-pass line.
After draining, be sure to close the by-pass globe
valve.
2. Turn the adjusting screw clockwise to close and
counterclockwise to open.
3. Close the pilot valve before opening up the steam inlet
valve.
For Steam Service
Figure 3-1
Main Valve Seat (7)
Gasket (8)
Body (1)
Guide (10)
Stud Bolt (39)
Gasket (47)
Top Diaphragm
Case (4)
Nut (40)
Main Spindle (9)
E-Ring (53)
Retainer (11)
Main Diaphragms (12)
Bottom Diaphragm
Case (5)
Plug (49)
Elbow (32)
Fitting (30C)
GP-2000R Back Pressure Regulator
Fitting (30A)
Pipe A (34)
Plug (29)
Tee (33)
Pipe B (35)
Fitting (30B)
Bolt (41)
Pipe C (36)
4. Open the outlet valve to the full open position and then
slowly open the inlet side gate valve to the full open
position.
5. Slowly turn the adjusting screw clockwise until the
desired pressure is obtained while watching the
pressure gauge on the inlet side of the regulator.
Turning clockwise will increase the set pressure of the
back pressure regulator.
6. After adjustment, tighten the lock nut.
Rivet (43)
Nameplate (42)
Bolt (37)
Plug (29)
Upstream
Sensing Port
Fitting (55)
Adapter Plate for
2" NPT (Does Not
Require Spring
Retainer (11)
4
Adjusting Screw (27)
Lock Nut (28)
Spring Housing (3)
Top Spring Plate (25)
Adjusting Spring (24)
Bottom Spring Plate (26)
Pilot Diaphragms (23)
Seal Bellows (61)
Gasket (62)
Pilot Valve (63)
Pilot Valve Spring (64)
Pilot Valve Seat (65)
Bolt (38)
Gasket (22)
Pilot Body (2)
Gasket (16)
Screen (15)
Spring Plate (14)
Main Valve Spring (13)
Main Valve (6)