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Selecting A Correct Support | Support Designs | Support Components | Density | Test Results | Specifications

General Information:
Developed to support cold piping with applications ranging from chilled water to liquefied natural gas. The qualified service temperature is from -425 º F (-253 º C) to 275 º F (135 º C). These cold supports provide the following benefits -

• Prevents the formation of condensation on and around piping systems.
• Prevents moisture ingress into the piping insulation.
• Preserves the process temperature of the fluid in the pipe.
• Prevents the chilling of the supporting structure.
• Eliminates welding high cost alloy supports to alloy piping.

Cold Product Lines:

• Pre-insulated pipe shoes
• Anchors and Guides
• Isolation blocks
• Micarta blocks, Sleeves and washers
• Polyurethane foams of 6 lb., 8 lb., 10 lb., 20 lb. and 30 lb. density
• Foam glass insulation
• Mas Coat - Insulation Paint for Personnel Protection.

Features And Quality:

• Latest technology, materials and designs are used.
• Insulation is matched to the thickness and layering of process line insulation per ASTM C585 to insure proper field fit.
• Multilayer insulation capable.
• Custom design available.
• Eliminates condensation, and associated field corrosion problems.
• Eliminates welding to pipe and expensive, cumbersome post weld heat treatment process.
• Eliminates galvanic corrosion problems between pipe and support material due to non compatible materials.
• Eliminates tedious selection of metal to metal type supports.
• Saves cost through energy savings.
• Saves installation cost by eliminating extra installation steps.
• Each unit is individually bagged to protect against damage in shipping and storage.
• Each unit is shipped completely assembled and ready for installation.

Selecting A Correct Support (Read the chart from left to right. Trace the chart from right to left):

BASE TYPE	INSUL-GUIDE	90 º RADIAL	SINGLE LAYER	IS-100   IG-90-SLR   IG-90-SLS
			DOUBLE LAYER	IG-90-DLR
		180 º RADIAL	SINGLE LAYER	IG-180-SLR
			DOUBLE LAYER	IG-180-DLR
	RESTING	FLAT SURFACE	360 º RADIAL	CF-1000   CF-2000   CF-4000   CF-4100
			180 º RADIAL	CF-3000   CF-3100
		ROLLER	360 º RADIAL	CR-4000   CR-4100
			180 º RADIAL	CR-3000   CR-3100
	SLIDING	LATERAL TRAVEL + - 2"	AXIAL TRAVEL + -  1.5"	CS-1000   CS-1100
			AXIAL TRAVEL + -  4.5"	CS-2000   CS-2100
		LATERAL TRAVEL VARIABLE	AXIAL TRAVEL + - 1.5"	CS-5000   CS-5100
			AXIAL TRAVEL + -  4.5"	CS-6000   CS-6100
	ANCHOR	BOLTED ANCHOR		CA-1000   CA-2000
		ANCHOR WITH GAP		CA-1100   CA-2100
		ANCHOR CLIPS		CA-4000   CA-4100
		STRUCTURAL GUIDE		CA-4010   CA-4110
		INSUL-CERT ANCHOR		CA-5000
		VERTICAL RESTRAINT		CA-6000
	GUIDED	GUIDE CLIPS	AXIAL TRAVEL + - 1.5"	CG-3000   CG-3100
			AXIAL TRAVEL + - 4.5"	CG-4000   CG-4100
		STRUCTURAL GUIDE	AXIAL TRAVEL + - 1.5"	CG-3010   CG-3110
			AXIAL TRAVEL + - 4.5"	CG-4010   CG-4110
		ANGLE GUIDE	AXIAL TRAVEL + - 1.5"	CG-7000   CG-7100
			AXIAL TRAVEL + - 4.5"	CG-8000   CG-8100
		INSULATION BLOCK	BLOCK	CB-1000
			ASSEMBLY	CB-2000
HANGER TYPE	RISER CLAMP			CV-2000   CV-2100
	HALF CLAMP			CH-2000   CH-2100
	BOLTED CLAMP			CH-1000   CH-1100
	CLEVIS		360 º RADIAL	CC-1000   CC-2000   CC-4000   CC-4100
			180 º RADIAL	CC-3000   CC-3100

Support Designs:

Design	Drawing	Description
Resting	Available soon	Insulated supports that restrain the pipe vertically but allow axial and lateral movements. Some of Rilco's designs, such as the IG-90-SLR and IG-180-SLR are constructed of high density polyurethane with a galvanized metal pan between the foam and the support steel. Other designs, such as CS-1000, CS-2000 have a full outer steel housing which is clamped around the insulation unit.
Guided	Available soon	Insulated supports that restrain the pipe vertically and laterally but allow axial movement. Guide clips or vertical guide members are provided with these designs, which are attached to the supporting structure and restrain the lateral movement of the support. Some of these designs include Rilco's CG-3000 and CG-4000
Anchor	Available soon	Insulated supports that restrain the pipe vertically, laterally and axially. Anchor supports are provided with  guide clips which are used to prevent lateral movement.  Some typical Rilco anchors are CA-4000 and CA-4100.
Clamp Hanger	Available soon	Insulated supports that restrain the pipe vertically by using an insulated pipe clamp which clamps to the pipe. In other words, the pipe is supported by a clamp and the insulation is between the clamp and the pipe. Typical material for the insulation is high density polyurethane foam. Rilco's commonly sold models are CH-1000 and CH-1100.

Support Components:

Type	Photo	Description
High density polyurethane foam	Available soon	Best material for cold insulation. Rilco manufactures 6, 8,10, 15, 20 and 30 lb./cubic ft. density foam. Other densities also available as "custom" products. Denser foam is more rigid and thermally conductive than lower density foam. The foam section can be stepped both radically and longitudinally to tie in with the same layering thickness as the line insulation to prevent straight heat path to the pipe.
Vapor barrier	Available soon	A paper or plastics back sheet that is used to wrap 360º around the foam section to protect moisture ingress. The vapor barrier is then glued to the foam and typically overlap the joint between the two insulation halves by at least 1 in. (25mm). However, some Rilco designs, such as IG-90-SLR typically do not require vapor barrier.
Protective mastic	Available soon	Often, the pipe supports are installed on the pipe weeks or even months before the insulation is installed. This condition leaves the support end exposed to the sun and rain. To protect the supports from these elements, Rilco applies mastic on the exposed surfaces of the supports.
Outer sheet metal jacket	Available soon	A standard feature on most Rilco designs. This metal jacket is wrapped around the foam section and outside the vapor barrier.
Steel housing with base components	Available soon	Designed to provide adequate support for the insulation section while properly transferring the load to be restrained to the supporting structure.

Density:

General Information -

• Insulation is molded to the thickness and layering of process line insulation to insure proper field fit per ASTM C585.
• Rilco polyurethane foam is a carbon dioxide blown system and contains NO ENVIRONMENTALLY HAZARDOUS MATERIALS.
• Design temperature ranges: -425 º F (-253 º C) to 275 º F (135 º C).
• 95% closed cell content.
• Water absorption: 0.05 lb./cubic ft.
• Test results accurate to within +/- 10%.

Test Results:

Sample		Density		Temperature		Load @Yield		Compressive  strength @ yield		Deformation @yield in % of thickness	Compressive strength @ 2% deformation		Compressive strength w/5:1 safety factor
		lb/ft³	kg/m³	Fº	Cº	lb.	kg.	psi	kg/cm²		psi	kg/cm²	psi	kg/cm²
6 lb. per cu. ft.	6-1	6.5	104	-256	-160	3249	1474	358	25.2	6.3%	178	12.5	72	5.1
	6-2	6.54	105	-256	-160	3375	1531	377	26.5	5.7%	184	12.9	75	5.3
	6-3	6.48	104	-256	-160	3150	1429	347	24.4	4.8%	168	11.8	69	4.9
	6-4	6.53	105	-256	-160	3350	1520	370	26.0	5.2%	174	12.2	74	5.2
	6-5	6.56	105	-256	-160	3525	1599	389	27.3	5.5%	182	12.8	78	5.5
	6A	6.51	104	75	24	293	133	137	9.6	4.4%	83	5.8	27	1.9
10 lb. per cu. ft.	10-1	10.87	174	-256	-160	2981	1352	693	48.7	7.0%	239	16.8	139	9.8
	10-2	10.85	174	-256	-160	3019	1369	755	53.1	4.5%	273	19.2	151	10.6
	10-3	10.80	173	-256	-160	3140	1424	737	51.8	7.0%	241	16.9	147	10.3
	10-4	10.80	173	-256	-160	2461	1116	575	40.4	7.0%	209	14.7	115	8.1
	10-5	10.74	172	-256	-160	2211	1003	518	36.4	6.4%	195	13.7	104	7.3
	10A	10.96	176	75	24	730	331	333	23.4	6.0%	185	13	67	4.7
15 lb. per cu. ft.	15-3	13.98	224	-256	-160	2640	1198	1214	85.3	5.9%	472	33.2	243	17.1
	15-4	13.99	224	-256	-160	3020	1370	1307	91.9	6.4%	455	32	261	18.3
	15-5	14.09	226	-256	-160	2327	1056	1071	75.3	5.8%	389	27.3	214	15
	15-6	13.39	215	-256	-160	2450	1111	1077	75.7	5.3%	473	30.7	215	15.1
	15-7	13.94	223	-256	-160	2450	1111	1129	79.4	5.7%	461	32.4	226	15.9
	15A	14.06	225	75	24	1146	520	536	37.7	8.2%	272	19.1	107	7.5
20 lb. per cu. ft.	20A-8	18.44	295	-256	-160	4400	1996	2087	146.7	4.2%	638	44.9	417	29.3
	20A-9	18.71	300	-256	-160	4380	1987	1998	140.5	7.5%	658	46.3	400	28.1
	20A-9	18.77	301	-256	-160	4020	1823	2117	148.8	8.0%	658	46.3	400	28.1
	20A-10	18.42	295	-256	-160	3710	1683	2012	141.4	6.8%	695	48.9	402	28.3
	20A-11	18.73	300	-256	-160	4050	1837	2158	151.7	8.0%	683	48.0	432	30.4
	20A	18.45	296	75	24	1858	843	834	58.6	8.7%	387	27.2	167	11.7

Specifications:

A. Scope
This specification covers the requirements for design, fabrication and use of load bearing low temperature insulated pipe supports. It is applicable for pipes having a surface temperature ranges of -475 º F (-281 º C) to 275 º F (135 º C)

B. General Requirements

1. All insulated piping shall be supported with insulated pipe supports.
2. Insulated pipe supports shall comply with the latest edition of the following:
• ANSI/ASME B31.1 & B31.3.
• Manufactures Standardization Society (MSC) SP-58, 69 & 89.
3. Considerations shall be given to the following criteria in the selection of insulated pipe supports:
• Vertical, lateral and axial support design load limits.
• Vertical, lateral and axial support design travel limits.
• Support temperature design limit both at the pipe and support outside ambient temperature.
• Any test or installation loadings or displacements that may exceed normal system operating conditions.
• Required dimensional clearances needed during installation and system operation should be specified.
• Localized lugs and pipe stresses for insulated pipe supports requiring lugs or welded attachments welded to the pipe. Material of the welded attachments should compatible with the pipe.
• Consideration should be given to loadings and displacement resulting from seimic, water hammer and similar conditions.
4. At the request of the owner or his designee, calculations and other related documentation which demonstrate adequacy and compliance of the insulated support with the design requirements shall be made available for his review.
5. At the request of the owner or his designee, localized stress calculations for lugs or other welded pipe attachments shall be made available for his review.
6. Any special requirements, such as material test reports or certified mill test reports shall be specified in advance.

C. Design Criteria

1. The load bearing insulating material used in the supplied insulated support shall be of the same material that was used to load rate the support.
2. At the request of the owner or his designee, supplier shall make available compressive strength and thermal conductivity testing results of high density polyurethane by an independent laboratory in a format provided for in MSS SP-89. Testing of material shall take place at a maximum temperature of -260 º F (-176 º C).
3. At the request of the owner or his designee, a description of the basis used to load rate the insulated pipe support shall be provided for evaluation. A minimum safety factor of 5 at the system design temperature shall be used in determine the insulate pipe support load rating.
4. The testing used to establish load bearing insulation compressive properties shall comply with ASTM D 1621, Standard Test Method for Compressive Properties of Rigid Cellular plastics.
5. The testing used to establish thermal conductivity properties of high density polyurethane shall comply with ASTM C 177-85, Steady State Heat Flux Measurement and Thermal Transmission Properties by means of the Guard Hot Plate Apparatus.
6. The load bearing element load capacity shall be demonstrated at the piping system design temperature and load.
7. The insulated pipe support assembly shall exert a minimum clamping force on the pipe to assure that the assembly will move axially with the pipe and not slip relatively to the pipe when subjected to the design conditions.
8. All sliding surfaces shall be designed in such a manner as to limit the coefficient of friction to 0.1 for the system design life without requiring lubrication. Care shall be exercised in the selection of the sliding surface material to assure that corrosion of the sliding surface will not adversely affect the coefficient of friction over time. Any friction reducing material used that requires bonding shall be bonded to the backing structure prior to shipment.
• 6 & 10 lb./cubic ft. foam : .16 BTU-in./hr-ft²- º F (0.023 W/meter*K)
• 15 lb./cubic ft. foam : .20 BTU-in./hr-ft²- º F (0.0238W/meter*K)
• 20 lb./cubic ft. foam : .25 BTU-in./hr-ft²- º F (0.035 W/meter*K)
9. High density polyurethane shall not contain or use during fabrication environmentally hazardous CFC'c

D. Fabrications

1. The insulated pipe supports shall...
• be pre-assembled with sufficient insulation extending beyond the support outer metal jacket so as to allow the pipe insulator to make a standard insulation butt joint.
• have exposed surfaces coated with a mastic to support the foam from moisture and ultraviolet light degradation. Mastic shall have a minimum perm rating of .02 (ASTM E-96)
• have a vapor barrier between the jacket and the insulating material with a maximum perm rating of .02
• have the insulation ID and OD dimensions per ASTM Specification C585 unless otherwise specified
2. Designs having sliding surfaces shall incorporate two slide plates at each sliding surface. Each slide plate shall be composed of a 3/32" (2.5 mm) thick glass filled reinforced Teflon bonded to a 10 GA. carbon steel backing plate. On these to be welded plates, the Teflon should be recessed 1/4" (6.5 mm) from the edge.
3. All welding shall comply with the requirements Section IX of the ASME Boiler and Pressure Vessel code and AWS D1.1.
4. the following items, unless otherwise noted on contract drawings, shall be in accordance with the following:
• Structure shape and plate: ASTM A-36
• Bolts/studs greater than 1/4": ASTM A-193 Grade B7
• Bolts and nuts less than or equal to 1/4": ASTM A-307
5. Prior to installation, the supports will be stored in a dry covered area to avoid exposure to sunlight, rain and moisture.

E. Shipping and Handling

1. Each insulated support assembly shall be clearly and permanently marked with the support identification number. The marking shall withstand water and fading when exposed to sun light.
2. The support marking number should be placed in a location where it is visible before and after installation.
3. Supports are to shipped in either reinforced cardboard or strap board crated with a cover. Each container shall be clearly marked with a unique number. All supports shall be individually wrapped by plastic sheets.
4. Each container shall have 2 copies of the packing slip. One is placed inside and the other is taped on the outside.
5. Prior to installation, the supports will be stored in a dry covered area to avoid exposure to sunlight, rain and moisture.

F. Extent of Work

1. Work included:
• Furnish the insulated pipe support assembly, encompassing the insulating materials, metal jacket, fabricating steel housing, guide clips, associated hardware including clamps, bolts and nuts, screws, slide plates and other components that may be required to make a complete assembly.
2. Work not included:
• Structural steel parts which are not integral parts of the insulated pipe support assembly
• Receiving, unloading and installing of the insulated pipe supports.