Emerson Type 1290 Vapor Recovery Regulator Przewodnik Instalacji Pobierz pdf (Strona 2)

Type 1290



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

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

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

Clean out all pipelines before installation of the backpressure

regulator and check to be sure the backpressure regulator

has not been damaged or has collected foreign material

during shipping. For NPT bodies, apply pipe compound to

the external pipe threads. For anged bodies, use suitable

line gaskets and approved piping and bolting practices.

Install the backpressure regulator in any position desired,

unless otherwise specied, but be sure ow through the body

is in the direction indicated by the arrow on the body.





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

The recommended pressure limitations are stamped on

the regulator nameplate. Some type of overpressure

protection is needed if the actual inlet pressure

exceeds the maximum operating outlet pressure rating.

Overpressure protection should also be provided if the

regulator inlet pressure is greater than the safe working

pressure of the downstream equipment.

Regulator operation below the maximum pressure

limitations does not preclude the possibility of damage from

external sources or debris in the line. The regulator should

be inspected for damage after any overpressure condition.



The backpressure regulator control spring is factory

set at a setpoint specied in the order. If no setpoint is

specied, the control spring is set at approximately the

midpoint of the spring range, so an initial adjustment

may be required to give the desired result. With proper

installation completed and relief valves properly adjusted,

slowly open the upstream and downstream shutoff valves

(if applicable).



To change the outlet pressure, remove closing cap or

loosen the locknut and turn the adjusting screw clockwise

to increase outlet pressure or counterclockwise to

decrease pressure. Monitor the outlet pressure with a

test gauge during the adjustment. Replace closing cap or

tighten the locknut to maintain the desired setting.







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





 

1 Body

2 Body Flange

3 Cap Screw

3 Stud Bolt

4 Gasket

5 Lower Indicator Fitting

6 O-ring Retainer

7 Travel Indicator

Stem O-Ring

8 Hex Nut

9 Main Valve Spring

10 Lower Indicator Stem

11 Cage

12 Port Seal

13 Seat Ring

15 Upper Seal

16 Valve Plug

17 Cage O-Ring

18 Indicator Scale

19 Travel Indicator Protector

21 Indicator Fitting O-ring

22 Flange Nut

23 E-Ring

24 Drive Screw

25 Flow Arrow

27 Indicator Plug

28 Spring Seat

31 Pipe Plug

35 Indicator Fitting

36 Back-up Ring

37 Travel Indicator O-ring





 

1 Lower Diaphragm Case

2 Upper Diaphragm Case

3 Bonnet

4 Cap Screws

5 Casing O-Ring

6 Stem O-Ring

7 Diaphragm

8 Diaphragm Plate

9 Stem Cap Screw

10 Cap Screw

11 Hex Nut

12 Stem

13 Nameplate

27 Type Y602-12 Vent Assembly

28 Grease Fitting

56 Bearing

57 Wiper Ring





 

1 Regulator Body

2 Spring Case

3 Orice

4 Valve Plug

5 Valve Plug Guide

6 Stem Assembly

7 Stem Guide Bushing

8 Lower Spring Seat

9 Upper Spring Seat

10 Valve Plug Spring

11 Regulator Spring

12 Diaphragm

15 Adjusting Screw

16 Cap Screw

17 Jam Nut

20 Pitot Tube

WARNING

1 2 3 4

Type 1290 1

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Emerson Type 1290 Vapor Recovery Regulator Przewodnik Instalacji Strona 2

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