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POLIURS CV4.04, Инструкция по монтажу

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HEATING MAIN MONTAGE INSTRUCTIONS  CV4.04 

 

5. PREINSULATED VALVE MONTAGE 

Isolated  spherical  valves,  isolated  valves  with  air  or  drain  release/  drainage  are  installed 
into heat main the same as other fittings or straight pipe sections-after welding of the work 
pipe  and  isolating  joining  places.  Assembling  (fitting)  diagram  must  insure  convenient 
access  to  valve  operating  mechanism  and  safety  against  damages  of  the  mechanism 
while operating.  
 
Version A. 

Version B. 

 

 

 

 
Isolated  valve  montage  is  chosen  from  taking  into  account  surface  loads,  engineering 
works, municipal network location, etc. 
 
Example A is used when surface loads are minimal (for example sidewalk, green territory), 
example B - at greater surface loads, for example road or freeway. 

 
While performing montage works valves must be in open position, in that way minimizing 
probability of sealing damages. 
 
From the ground surface valve is opened and closed using T-shaped key, which come in 
the  package.  Reinforced  concrete  products  and  iron  manhole  covers  „Poliurs”  Ltd.  does 
not provide. 

 
After  assembly  of  the  line  and  rinsing  of  the  valve  it  is  recommended  to  perform  first 
closing  of  the  valve  by  turning  T-shaped  key  in  counterclockwise  direction  for  90°, 
afterwards closing the valve by turning the key in opposite direction. 
 
 
 
 
 
 
 
 
 
 
 

5.1. 

Содержание CV4.04

Страница 1: ...Saules iela 8 Ozolnieki Ozolnieku pagasts Ozolnieku novads LV 3018 el 630 50600 630 26033 fax 630 50230 www poliurs lv e mail info poliurs lv HEATING MAIN MONTAGE INSTRUCTION CV4 04 2014...

Страница 2: ...ATED PIPE JOINTS 8 1 Connection montage type 1 8 2 Connection montage type 2 8 3 Connection montage type 3 8 4 Connection montage type 4 9 END CAP AND ELASTIC SEAL MONTAGE 10 BACKFILLING OF THE TRENCH...

Страница 3: ...iduals that successfully complete training upon the completion receive a completion certificate POLIURS Ltd Quality and Environment management system is certified with accordance to LVS ISO 9001 and L...

Страница 4: ...on the even surface Fittings and small parts couplings foam pads heat shrinkable materials components A and B wall entry rings etc are stored separately in a place protected from direct sunlight Cont...

Страница 5: ...ch cross section suggested dimensions PE casing D mm Distance between pipes mm Trench base width min m Trench depth m 90 150 0 7 0 65 110 150 0 7 0 65 125 150 0 7 0 65 140 150 0 8 0 65 160 150 0 8 0 7...

Страница 6: ...ion resistant pipe Protectors are base relief on PE casing which protect the casing from damages while moving axially The length of the load distributor should exceed the length of the pipe section to...

Страница 7: ...clamp and non metallic padding The welder should be certified according to the LVS EN 287 standard and according to technology which corresponds to LVS EN ISO 15607 demands Before steel pipe welding...

Страница 8: ...loped ring cut the casing removable portion Remove cut out casing section 3 Remove carefully the foam from the middle section with the knife so that wires stay untouched Cut alarm system wires Clean a...

Страница 9: ...r concrete placement use concrete kl B25 Suggested anchor block sizes Steel pipe d mm Anchor size m AxBxC Armature diameter mm Steel pipe d mm Anchor size m AxBxC Armature diameter mm 42 0 5 x 0 7 x 0...

Страница 10: ...neering works municipal network location etc Example A is used when surface loads are minimal for example sidewalk green territory example B at greater surface loads for example road or freeway While...

Страница 11: ...col Cold water should be used for hydraulic testing The control pressure duration should take at least 15 minutes Testing pressure can not be decreased for more than 5 from initial testing pressure Du...

Страница 12: ...ther Free wire ends that are not isolated should be protected against any damage According to project scheme alarm system montage should be performed before isolation of the connection is pored betwee...

Страница 13: ...straightened wire ends so that after connection they are not hanging Wire ends of approximately 1 2 cm should be cleaned carefully with sand paper Insert one end of the wire into the splicing pliers...

Страница 14: ...alarm box with the help of 3 lead connection cables Cable main wire should be connected to the steel pipe with help of screw M8 and a wrench Alarm boxes are installed close to the pipes entry in the...

Страница 15: ...nough to move aside it from the connection It is similar to Type 3 only for below ground pipelines do not use galvanized casing While performing montage connection it is required to take into account...

Страница 16: ...quid for example acetone brush or rag goggles gloves hand drilling machine drills 25 mm 3 mm megahommeter for alarm testing If the joint seal check is scheduled then additional tools are needed tightn...

Страница 17: ...ng tape with length L according to the table D mm 90 110 125 140 160 180 200 225 250 280 315 355 400 450 500 560 630 L m 0 39 0 45 0 50 0 55 0 61 0 68 0 75 0 84 0 92 1 02 1 14 1 27 1 43 1 59 1 77 1 97...

Страница 18: ...p tape end with a gas torch for about 1 3 seconds and press against PE surface Without pulling place tape along circumference of the pipe and at the same time removing protective film Heat up the end...

Страница 19: ...That way there won t be any air trapped underneath the tape Melt glue is an indication when tape temperature is sufficient If Dual Seal heat shrinkable tape is used then heat it up until green indicat...

Страница 20: ...nnection then pour component B into the container with component A mix rapidly and pour into the drilled hole with diameter of 25 mm 12 Close drilled hole with PE cork 13 After PUR foam hardening not...

Страница 21: ...steps 1 3 5 10 Exception don t drill an air release hole in 3 mm 2 Screw in special nozzle with manometer attach air pump Pump pressure in the sleeve up to 0 2 0 5 bar Keep track of manometer readings...

Страница 22: ...nd 3 mm heat insulating tape for example from glass fiber for sleeves with diameter 250 mm PE electronic cork welder hand saw if PUR half casings are being used megahommeter for alarm system testing M...

Страница 23: ...at are not supposed to be heated up With weak yellow part of the flame make sure sleeve sits down on the PE casing At first heat up equally around the circumference for about 1 2 minutes one sleeve en...

Страница 24: ...iously heating up the equipment up to 250 C and connecting heating equipment to 220V powe r source Montage equipment is ready to be used when pilot light on the equipment goes off PE cork and drilled...

Страница 25: ...tape so that it completely and firm covers PUR casings 7 Cut and place two duct tape pieces on the coupling tape and pipe casing so that coupling tape ends are completely sealed Push sleeve on the PU...

Страница 26: ...on fabric base degreasing liquid for example toluol brush or a rag protective goggles and gloves hand drilling machine drills 27 5 mm 25 mm and 3 mm PE electronic cork welder megahommeter for alarm s...

Страница 27: ...vienojuma vietai j b t pagrieztai aptuveni par 30 attiec b pret str vas pievadiem 9 Connect the cables from the welding computer to the welding band termin ls If both welding bands are to be welded at...

Страница 28: ...wet cut damaged part Check and connect alarm wires if alarm system is anticipated 2 Place aluminum foil around pipe connection area shape cover casing Bend casing edge at least 50 mm in one direction...

Страница 29: ...5 400 450 500 560 L m 0 35 0 42 0 46 0 51 0 58 0 64 0 70 0 78 0 86 0 96 1 07 1 20 1 34 1 50 1 66 1 86 10 Heat aluminum casing and previously cleaned pipe casing area using propane butane flame up to t...

Страница 30: ...that wrinkles are formed and after sufficient heating they vanish forming smooth surface then process was performed well 14 Additionally cover connection area with galvanized tinplate casing and secur...

Страница 31: ...d Tightly secure sleeve on casing pipes with tension belts 3 Drill openings in the sleeve for pouring in PUR components and air release see connection montage Type 1 steps 3 and 4 4 Prepare a mix of c...

Страница 32: ...heat up both surfaces up to at least 60 C checking surface temperature with appropriate indicator 3 In cases when pipe has alarm system wires and they need to be lead outside of end cap then smear sea...

Страница 33: ...Elastic seal is use on pipes when entering foundation in buildings or when entering wells It stops ground water from entering inside along with the pipe Allows pipe to freely move sideways It is produ...

Страница 34: ...s recommended to place caution tape above every pipe heating and return If preinsulated pipe diameter is 200 mm place one caution tape above both of the pipes The rest of the trench fills with earlier...

Страница 35: ...rements that are explained in this instruction ensured and documented heat carriers parameters operating pressure 16 atm operating temperature 150 C salt content 3000 mg l pH 9 5 10 free oxygen not ac...

Страница 36: ...General suggestions remove all clothing that got soaked with this matter When inhaled If problems occur after breathing in of the vapor then seek fresh air or medical attention if discomfort is prese...

Страница 37: ...y or move take him to fresh air If possible perform artificial breathing with oxygen perform medical aid Symptoms can occur after a period of time When came in contact with skin immediately remove sat...

Страница 38: ...section or by a fitting Customer Site address Montage performed position surname company Pipeline stage identification Preheated flow pipe Return pipe Connection Nr Wire loop resistance Insulation re...

Страница 39: ...ormed _____________________________________________________ _________________ Company position name surname Signature _____________________________________________________ _________________ Company po...

Страница 40: ...0 0 21 0 25 76 180 0 27 0 32 89 160 0 19 0 23 89 180 0 25 0 30 89 200 0 33 0 39 108 180 0 22 0 26 108 200 0 29 0 34 108 225 0 40 0 48 114 200 0 28 0 33 114 225 0 39 0 47 114 250 0 50 0 60 133 200 0 24...

Страница 41: ...20 0 24 76 160 0 28 0 33 76 180 0 36 0 43 89 160 0 26 0 31 89 180 0 34 0 41 89 200 0 43 0 51 108 180 0 31 0 37 108 200 0 40 0 48 108 225 0 53 0 63 114 200 0 39 0 47 114 225 0 52 0 62 114 250 0 66 0 7...

Страница 42: ...0 13 0 16 48 48 160 0 21 0 25 42 33 125 0 13 0 16 57 57 160 0 19 0 23 48 33 140 0 16 0 19 60 60 200 0 32 0 38 48 42 140 0 15 0 18 76 76 225 0 38 0 45 60 33 160 0 21 0 25 89 89 250 0 46 0 55 60 42 160...

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