Insulation Compression Spring (Mighty Spring)

• Constant-Tension Design — Maintains steady clamping pressure as insulation settles or the vessel expands thermally, eliminating loose banding and energy loss.
• Dual Material Option — SUS 304 for standard environments; SUS 316 (with 2–3% Mo) for chloride-rich, marine, or chemical service environments.
• Heavy-Duty 3 mm Wire — ~80 lbs/inch compression rate handles large circumferences and high loads typical of storage tanks ≥4 m diameter.
• Tool-Compatible — Works with standard 3/4″ strapping tensioners, wing-seal buckles, and banding tools; no special tooling required.
• GLT Mity-Spring Replacement — Dimensionally equivalent to GLT Products Compression Mity-Spring #1; a cost-effective direct replacement for insulation contractors.
• Long Service Life — Stainless steel resists rust, stress relaxation, and UV degradation for decades of outdoor industrial service.
• Bolt-Adjust Mechanism — Fine-tune spring gap (1–2 cm recommended) to match thermal expansion of different vessel materials.

• Oil storage tanks (ASTs) — Securing insulation blankets on above-ground storage tanks with diameters of 4 m and above in petrochemical and refinery plants.
• Process vessels — Pressure vessels, heat exchangers, reactors, and process drums in oil & gas, power generation, and chemical processing facilities.
• LNG / LPG cryogenic tanks — Cold insulation systems where thermal cycling causes significant banding contraction.
• Industrial boilers — Hot insulation systems operating above 150°C where vessel expansion is pronounced.
• Large-bore pipelines — NPS 12 and above industrial pipelines with significant thermal movement along their length.
• Marine applications — Ship engine rooms, fuel tanks, and ballast tanks (specify SUS 316 for salt-air environments).

Installation Steps

1. Thread Wing Seal Buckle #1 onto the banding strip; pass through one end of the spring box base and lock with the buckle.
2. Thread Buckle #2 onto the strip. Wrap banding around the vessel; pass through the other end of the spring base. Tension until spring gap is ~1–2 cm.
3. Rotate the adjustment bolt with a wrench to fine-tune tension as required.

Required: 1× banding strip, 1× compression spring, 2× wing-seal buckles, 2× wrenches, safety gloves.