COPPER-THERM Specification Guide

Transcription

1 STANAR SPECIFICATION Pre-insulaed Copper Piping Sysems suiable for Heaing Waer, omesic Ho Waer, Chilled Waer, Condensae Reurn, Process Fluids, and Cryogenic services. Par 1 General 1.1 Pre-insulaed Piping - Furnish a complee sysem of facory pre-insulaed copper piping for he specified service. All pre-insulaed pipe, fiings, insulaing maerials, and echnical suppor shall be provided by he Pre-insulaed Piping Sysem manufacurer. 1.2 The sysem shall be manufacured by Thermacor Process Inc. of For Worh, Texas. Par 2 Producs 2.1 Carrier pipe shall be Type K Copper ube, conforming o ASTM B-88. (A he Engineer s opion, Type or Type M is accepable.) Cleaned and Capped Type K, and ACR Type copper ube may be used for cryogenic and refrigeraion applicaions. All copper piping shall have ends cu square for socke brazing. Sraigh secions of facory insulaed pipe shall be 20-foo in lengh and shall have of exposed pipe a each end for field join fabricaion. Field joining of piping shall uilize approved mehods of brazing wih alloys meling a or above 1100 F; in-lead solder is no accepable. 2.2 Insulaion shall be polyurehane foam eiher spray applied or injeced wih one sho ino he annular space beween carrier pipe and jacke. Insulaion shall be rigid, 90% minimum closed cell polyurehane wih a minimum 2.0 lbs per cubic foo densiy, compressive srengh of F, and coefficien of hermal conduciviy (K-Facor) of no higher han 75 F per ASTM C-518. Maximum operaing emperaure shall no exceed 250 F. Insulaion hickness shall be specified by calling ou appropriae carrier pipe and jacke size combinaions as lised on drawing or Jackeing maerial shall be eiher exruded whie polyvinyl chloride, consising of clean, virgin NSF approved Class B PVC compound, conforming o ASTM -1784, Type 1, Grade 1 or high densiy polyehylene (HPE). PVC jacke shall have a wall hickness in mils equal o en imes he nominal jacke diameer and shall no be less han 60 mils. HPE shall have a minimum wall hickness of 100 mils for jacke sizes less han or equal o 1, 125 mils for jacke sizes larger han 1 o 2, and 150 mils for jacke sizes larger han 2. No FRP, HUP, or ape jacke allowed. 2.4 Sraigh run joins are insulaed using urehane foam o he hickness specified, jackeed wih eiher an HPE or PVC sleeve and sealed wih pressure sensiive, polyehylene backed, rubberized biumen adhesive ape, 30 mils hick, or a hea shrink sleeve. Above ground insallaions shall use whie, pressure sensiive PVC ape. 2.5 Fiings are Thermacor SC (sandard componens) facory pre-fabricaed and pre-insulaed wih urehane o he hickness specified, jackeed wih a molded fiing cover or a PVC fiing cover wrapped wih polyehylene backed, pressure sensiive rubberized biumen adhesive ape, 30 mils hick. Carrier pipe fiings shall be brazed wih alloys meling a or above 1100 F; in-lead solder is no accepable. Fiings include expansion loops, elbows, ees, reducers, and anchors. (A he Engineer s opion, sysem may be pre-engineered.) 2.6 Expansion/conracion compensaion will be accomplished uilizing facory pre-fabricaed and pre-insulaed expansion elbows, Z-bends, expansion loops, and anchors specifically designed for he inended applicaion. Exernal expansion compensaion uilizing flexible expansion pads minimum one inch hick exending on eiher side, boh inside and ouside he radius of he fiings, is used wih all fiings having expansion in excess of 1/. (Coninued)

2 STANAR SPECIFICATION Par 3 Execuion 3.1 Pre-fabricaed sysems shall be provided as SC (sandard componens) fiings and facory insulaed sraigh pipe secions for field engineering per he conrac drawings. (A he Engineer s opion, sysem may be pre-engineered wih spool piece numbers marked for insallaion per manufacurer s drawings.) 3.2 Underground sysems shall be buried in a rench of no less han wo fee deeper han he op of he pipe and no less han eigheen inches wider han he combined O.. of all piping sysems. A minimum hickness of 24 inches of compaced backfill over he op of he pipe will mee H-20 highway loading. 3.3 Trench boom shall have a minimum of of sand or specified backfill maerial, as approved by he engineer, as a cushion for he piping. All field cuing of he pipe shall be performed in accordance wih he manufacurer s insallaion insrucions. 3.4 A hydrosaic pressure es of he carrier pipe shall be performed per he engineer s specificaion wih a facory recommendaion of one and one-half imes he normal sysem operaing pressure for no less han wo hours. Care shall be aken o insure all rapped air is removed from he sysem prior o he es. Appropriae safey precauions shall be aken o guard agains possible injury o personnel in he even of a failure. 3.5 Field service, if required by projec specificaions, will be provided by a cerified manufacurer s represenaive or company field service echnician. The echnician will be available a he job o check unloading, soring, and handling of pipe, join insallaion, pressure esing, and backfilling echniques. This service will be added ino he cos as par of he projec echnical services required by he pre-insulaed pipe manufacurer.

3 POYURETHANE FOAM IN PVC JACKET Carrier Pipe: - Type K,, or M Hard Copper (ASTM B-88) d > - 9 Cu Back d < - Cu Back Jackeing Maerial: Polyvinyl Chloride (PVC) Insulaion: Polyurehane Foam d Pipe 1/ 3/ 1-1/ 1-1/ 2-1/ Jacke Sandard engh Insulaion Thickness Exernal iameer * Oher sizes are available

4 POYURETHANE FOAM IN HPE JACKET Carrier Pipe: - Type K,, or M Hard Copper (ASTM B-88) d > - 9 Cu Back d < - Cu Back Jackeing Maerial: High ensiy Polyehylene (HPE) Insulaion: Polyurehane Foam d Pipe Jacke Sandard engh Insulaion Thickness Exernal iameer 1/ / / 1-1/ 2-1/ * Oher pipe and jacke combinaions are available. ** Insulaion hickness is calculaed using minimum wall hickness. Acual wall hickness may be greaer han saed, hereby minimally decreasing acual foam hickness.

5 HEAT OSS IAGRAM ( - PIPE) HEAT OSS FOR OF POYURETHANE FOAM* Q loss (Bu/f/hr) Burial deph: 3 - Soil conduciviy: 12 (Bu/h.f 2. F/f) - Soil emperaure: 50 F Service Temperaure ( F) HEAT OSS FOR OF POYURETHANE FOAM* Q loss (Bu/f/hr) Burial deph: 3 - Soil conduciviy: 12 (Bu/h.f 2. F/f) - Soil emperaure: 50 F Service Temperaure ( F) * Values are calculaed using 3E Plus in accordance wih ASTM C680 and are subjec o he erms and limiaions saed in he sofware. Acual hea loss may vary.