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15 

 

Appendix “C” 

 

ONLY  IF  ABSOLUTELY  NECESSARY

,  the  RS-2 can be mounted in positions 

other  than  the  preferred  “Typical  Installation” position illustrated in Figure 1 on 
page 8 (

but not upside down

).  See the following illustrations for other possible 

mounting positions. 
 

NOTE:

    If  the  RS-2 

RuptureSeal

™  valve  is  mounted  in  positions  other  than  vertical,  its  opening 

pressure will be lower than the factory setting of 15 psi (the valve is calibrated by the manufacturer for 
vertical mounting).  This will not negatively effect the valve’s flow capacity.  The valve’s opening and 
re-sealing  point  will  be  slightly  lower  than  its  normal  set  point,  however  the  intended  purpose  and 
overall functioning of the 

RuptureSeal

™ will not be significantly effected. 

 

Mounting  variations  from  rotating  the  valve  body

 

(7)

 

only

.  The  drawing  below  at  the  far  left 

(Rotate-1)  illustrates the typical valve mounting.  The next drawing (Rotate -2) illustrates a mounting 
where the valve body has been rotated 90º clockwise.  Rotate-3 illustrates a mounting where the valve 
body has been rotated 180º clockwise.  Rotate-4 illustrates a mounting when the valve body has been 
rotated 270º clockwise. 

Typical (and preferred) Installation

Rotate-1

Valve Body rotated 90 degrees

Rotate-2

Valve Body rotated 270 degrees

Rotate-4

Valve Body rotated 180 degrees

Rotate-3

 

Turning the carbon fragment collection trap chamber

 

(10)

 

and rotating the valve body

 

(7)

.  The 

drawing  below  on  the  left  (“Normal”)  again  illustrates  (from  a  different  view)  the  typical  (and 
recommended)  valve  mounting.    The  center  drawing,  (Turn-1)  illustrates  where  the  carbon fragment 
collection  trap  chamber  has  been  turned  90º  to  the  left,  and  the  valve  body  has  been  rotated 
clockwise  270º.    The  drawing  on  the  right,  (Turn-2)  illustrates  the  carbon  fragment  collection  trap 
chamber turned 90º to the right, and the valve body rotated 90º clockwise.  (If the RS-2 is mounted as 
in the Turn-2 position, it will be necessary to re-mount the Tell-tale pressure gauge using a 1/8” NPT 
90 Ell so that the gauge dial will be visible.) 

 Alternative Mounting (gauge up)

Typical (and preferred) Installation

(end view)

Normal

Turn-1

 Alternative Mounting (gauge re-mounted)

 

 

NOTE:  The Double Check
Pressure Equalizing Valve
must be mounted vertically.

Turn-2

 

Warning:

    Regardless  of  mounting  position  of  the  RS-2,  the  Double  Check  Pressure 

Equalizing  Valve 

(22) 

MUST  be  mounted  in  a  vertical  position  with  the  filter/vent 

(34) 

pointing up (

é

).  Any position other than with the filter/vent end pointing up will create 

a  serious  safety  hazard.    (Mounting  the  double  check  pressure  equalizing  valve 

(22) 

vertically may require additional fittings.) 

 

Summary of Contents for RuptureSeal RS-2

Page 1: ...umbers 5 577 389 5 644 930 for Low Pressure Centrifugal Chillers R 11 R 113 R 123 Manufactured in accordance with ASHRAE Guideline 3 1990 Sec 4 6 Flow Tested per ASME Standards Redi Controls Inc Insta...

Page 2: ...as of April 15 1996 This Copy was Printed as of February 4 2005 1994 INDIANAPOLIS SPECIALTY VALVE INC IND PLS IN This product is marketed and sold by Redi Controls Inc under license from Indianapolis...

Page 3: ...tal Mounting Support 9 Double Check Pressure Equalizing Valve 10 Chillers utilizing R 123 special piping instructions 10 Leak Testing Procedure 10 MAINTENANCE 11 Following a Rupture 11 Annual 11 Servi...

Page 4: ...equipment Warnings may appear in this manual or on the equipment Heed all Warnings Cautions are designed to alert you to situations that may result in damage to your equipment Personal safety and the...

Page 5: ...re disks used on low pressure 15 psi or below centrifugal chillers The primary function of the RuptureSeal is to minimize refrigerant loss to the atmosphere in the event of a burst rupture disk The Ru...

Page 6: ...rain hole 24 to Drip Leg 31 A two inch 2 Female NPT Pipe Union 12 see Figure 2 on page 8 Materials for providing supplemental support of valve 3 4 iron pipe Typical Installation One 1 Pre assembled RS...

Page 7: ...e negatively affected Each installation must have such factors taken into consideration For reference see ASHRAE Guidelines relating to piping after a rupture device Warning DO NOT install an RS 2 Rup...

Page 8: ...how much of the existing rupture disk vent piping will have to be removed to accommodate the RuptureSeal Cut out and remove this section of piping 4 It is recommended that you utilize a flexible metal...

Page 9: ...t collection trap inlet 7 Valve body 24 Valve Body water drain hole 16 Calibration locking screws and seal Figure 3 Cutaway View Pressure Gauge and Auxiliary Alarm The pressure gauge 21 between the ru...

Page 10: ...ing Procedure Caution DO NOT use this procedure if chiller is at a pressure lower than 15 Hg Otherwise accidental bursting of the rupture disk could occur by imploding the rupture disk into the chille...

Page 11: ...ews 9 then lift the valve body 7 from the valve neck 32 4 Inspect the valve seat O Ring 1 and the valve body O Ring 2 If there are signs of wear or excessive compression set replace the O Rings Lightl...

Page 12: ...sure the Double Check Pressure Equalizing Valve is pointing straight up toward the sky and is unobstructed regardless of the RS 2 valve s position The Double Check Pressure Equalizing Valve only func...

Page 13: ...aporator The measurement to the immediate right of the evaporator s diameter indicates the Maximum Length of the chiller vessel evaporator that the Model RS 2 RuptureSeal valve can be installed on aft...

Page 14: ...ls are used within 20 feet 6 1 m of a pressure vessel multiply the value of f by 2 5 REFRIGERANT VALUE OF f When used on the lowside of a limited charge cascade system R 170 R 744 R 1150 1 0 0 082 R 1...

Page 15: ...ody rotated 90 degrees Rotate 2 Valve Body rotated 270 degrees Rotate 4 Valve Body rotated 180 degrees Rotate 3 Turning the carbon fragment collection trap chamber 10 and rotating the valve body 7 The...

Page 16: ...f there is a rupture all of the carbon fragments of the disk will be projected straight into the RuptureSeal carbon fragment collection trap Chiller Chiller Chiller Chiller Preferred Installation 1 Pr...

Page 17: ...S DCV1 O Ring type sizes Valve seat O Ring Parker 2 133 V747 75 Valve body O Ring Parker 2 145 N674 70 Collection chamber flange O Ring Parker 2 235 V747 75 All other parts of the valve are internal a...

Page 18: ...ions provided by REDI CONTROLS Failures of equipment due to abuse accident or negligence Damages from or part failures due to equipment not being installed per REDI CONTROLS instructions per applicabl...

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