Grayloc® Compact Flanges
Efficient, compact, and lightweight alternative that outperforms conventional flanges.
Our Compact Flanges integrate field-proven, metal-to-metal bore seal technology into a conventional flange layout to deliver robust, leak-free connectors suitable for extreme temperatures and pressures. The flange’s geometry, lightweight design, and small footprint enable you to optimize system design and reduce costs while benefiting from ease of installation and maintenance.
Eliminate fugitive emissions
Reduce installation time
Decrease maintenance costs and inventory requirements
Technical Specifications
| Nominal pipe size | ½ to 82 in |
| Design pressure rating | From full vacuum up to 48,000 psig |
| Design temperature range | -423 to 1500°F / -253 to 815°C |
| Compact Flange | Nickel alloys, carbon, low-alloy, stainless and duplex stainless steels |
| Seal Ring | Nickel alloys, low-alloy, stainless and duplex stainless steels |
| Bolting | Nickel alloys, low-alloy, stainless and duplex stainless steels |
| ASME B31.1, Power Piping |
| ASME B31.3, Process Piping |
| ASME B31.4, Pipeline Transportation Systems for Liquids and Slurries |
| ASME B31.8, Gas Transmission and Distribution Piping |
| ASME B31.12, Hydrogen Piping & Pipelines |
| ASME Section I |
| ASME Section VIII Div. 1 |
| ASME Section VIII Div. 2 |
| ASME Section VIII Div. 3 |
| API 6A: Specification for Wellhead and Christmas Tree Equipment |
Product Documents
Typical Applications
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