Top Suspended Unit for Use with Hanger Rod (Type A)

The Type A spring unit is designed for suspension installations where a hanger rod connects to the pipe or duct being supported. It incorporates a turnbuckle for precise load transfer and adjustment. This type is ideal for applications requiring a compact design and provides ±75mm of site adjustment. The robust casing and hot-dip galvanized finish ensure durability and resistance to debris and corrosion.

Spec Sheet

Quality Pipe Supports (QPS) Ltd. Variable Spring Units provide robust support for pipework experiencing moderate vertical displacement due to temperature changes or subsidence. These units are engineered to ensure reliability, safety, and adaptability across a range of industrial applications.

Key Features
  • Pre-compressed spring coil encased in a cylindrical housing with load and travel indicators.
  • Precision-calibrated using electronic load-travel recording.
  • Stainless steel scale plates detail individual specifications.
  • Manufactured primarily from carbon steel; stainless steel options available for corrosion resistance.
  • Multiple finishes, including hot-dip galvanising and multi-coat paint systems.
Design and Construction
  • Designed for load variations under 25% with displacement up to 70mm.
  • Pre-set for cold load conditions and rigorously tested across the working range.
  • Coils are plastic-coated; units constructed with high-quality materials like carbon steel, stainless steel, or alloys.
  • Custom designs available for specialised requirements.
  • Hydrostatic test loads supported up to twice the operating load.
Model Range

QPS offers four travel ranges:

  • QV1: 35mm
  • QV2: 70mm
  • QV3: 140mm
  • QV4: 210mm

These ranges ensure optimal support for pipes in their standard working position.

Ordering Guidelines

When ordering, specify:

  • Model number and type (e.g., QV2-A).
  • Size (0–22) and thread specification.
  • Vertical movement and direction (e.g., 16mm upward).
  • Pre-set load (calculated upon request).
  • Hydrostatic stops, if required.
  • Protective finish and marking/identification details.
  • Distance between rod centres and total load (for Type G).

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