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Product Lines » Apex Instruments » self regulating
self regulating

Self Regulating Heated Sample Lines

The Apex Instruments Self Regulating Heated Sample Line features a core of PTFE tubing and self regulating heating cable. The bundle is designed to maintain a temperature between 120°C (250°F) and 150°C (300°F) at an ambient temperature of 20°C (68°F) without an optional controller. The core is insulated in a high temperature closed cell foam which is moisture retardant and will withstand incidental oil contact and will not degrade in sunlight. The bundle is then encased in a braided protective sleeve that provides protection against abrasion. The ends of the heated sample line are then sealed with a durable heat shrink material. The outer diameter of the sample line is ~2 3/8 inches.
Specifications:

• Standard watt density 20W/ft. @ 10°C (50°F)
• Supply voltage 120V or 240V
• Maximum maintenance temperature of 130°C (270°F)
• Very flexible with a bend radius of 2 1/2 inches
• Custom manufactured to your specification
• Performs at constant temperature of 150°C (300°F) and
intermittent temperature of 150°C (300°F)
• Foam insulation is exceptionally ozone and ultraviolet resistant.

Features:

• Self regulating heating cable
• PTFE tubing of various sizes
• High temperature closed cell foam insulation
• Braided protective sleeve
• Lightweight

• Remarkably flexible

Maximum HSRL Length by Circuit Breaker Size
10°C (50°F) Start-up Temp
15A 20A 30A*
120VAC 18m (60ft) 23m (75ft) 35m (115ft)
Plug Type L5-15 L5-15 L5-30
240VAC 35m (115ft) 47m (155ft)
Plug Type L6-15 L6-20

*Note: NEMA L5-30 Plugs installed on HSRLs that exceed 20A. Standard North American Plugs (NEMA L5-15P) installed on all other HSRLs. Thermal magnetic circuit breakers are recommended since magnetic circuit breakers could “nuisance trip” at low temperature.