PRODUCT DATA SHEET
PER- · REV 1 · Jul 2026
Pipe Covers · Perlite
Perlite Pipe Cover
BRAND: Johns ManvilleSKU FAMILY: PER-2 STOCKED SIZES
Molded expanded perlite pipe insulation (Sproule WR-1200 type) — hydrophobic, non-wicking, with XOX corrosion inhibitor; the standard choice over austenitic stainless above 140°F.
AT A GLANCE
Max service temp1200°F
FormPre-formed pipe
Thickness range1-1/2" (stocked)
FacingNone
StandardASTM C610
Flame / smoke0 / 0 (ASTM E84 / UL 723)
TECHNICAL DATAPER MANUFACTURER
| Standard / specification | ASTM C610 |
| Thermal conductivity (k) | 0.48 @ 200°F (pipe, ASTM C335) |
| Density | <15 pcf (avg) |
| Compressive resistance | >70 psi @ 5% (ASTM C165) |
| Combustibility | Non-combustible per ASTM E136 |
APPLICATIONS
- Hot piping over stainless steel
- Refinery and chemical-plant service
- High-temperature process lines
THERMAL CONDUCTIVITY — K VS. MEAN TEMPBTU·IN/HR·FT²·°F
| Mean °F | 200 | 300 | 400 | 500 |
|---|
| k value | 0.48 | 0.55 | 0.61 | 0.67 |
STOCKED SIZES & SKUS2 SIZES
| SKU | NOM. SIZE | WALL / 2ND | LENGTH |
|---|
| PER-700-150 | 7" | 1.5" | 3 ft |
| PER-1100-150 | 11" | 1.5" | 3 ft |
FEATURES
- Rated to 1200°F
- Hydrophobic and non-wicking
- XOX corrosion inhibitor
- Non-combustible, 0/0
- Asbestos-free (blue color coding)
PACKAGING & HANDLING
| Packaging | Shrink-wrapped 3 ft half-sections |
| Handling & storage | Keep dry; store indoors; hydrophobic/non-wicking but protect from weather |
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Data shown is nominal and per the manufacturer's published literature; verify against the current submittal and SDS before specifying. Sun City Energy Supplies stocks to spec, fabricates to size, and returns quotes the same business day. Informational only — not a warranty of fitness for a particular purpose.