Products & Technical Selection Index

Variable Spring Hanger
MSS SP-58 Type 1-7

Variable Spring Hanger Supports

Variable Spring Supports accommodate thermal displacement in piping systems by exerting a variable supporting force through pre-compressed helical coil springs.

  • Design Standard: MSS SP-58 / MSS SP-69 / ANSI B31.1
  • Load Range: 5 kg up to 15,000 kg (in 21 standard sizes)
  • Travel Range: ±25 mm, ±50 mm, ±100 mm, ±200 mm
  • Configurations: Type A (Base Mounted), Type B, C, D (Top Attachment), Type E, F, G
Constant Load Support
Constant Force

Constant Load Spring Supports

Designed for piping systems subject to high thermal vertical movement where load transfer to critical nozzles or boilers must be restricted within ±6% deviation.

  • Design Standard: MSS SP-58 Type 54, 55, 56
  • Load Range: 100 kg to 20,000 kg
  • Travel Range: Up to 300 mm total travel
  • Mounting: Horizontal & Vertical Types
Rigid Pipe Support
Rigid Suspension

Rigid Pipe Supports & Assemblies

Non-yielding rigid support assemblies designed to anchor or guide pipes against vertical/lateral displacement and structural dead weight.

  • Components: Riser Clamps, Pipe Saddles, U-Bolts, Beam Clamps
  • Pipe Diameter: ½" NB to 60" NB
  • Material Grade: IS 2062 Gr.B, ASTM A36, Stainless Steel 304/316
Technical Data

Variable Spring Support Selection Table

Standard load range selection reference table for Hasan-Techno Industry Variable Spring Hangers (MSS SP-58 Type 1):

Size No. Min. Load (kg) Max. Load (kg) Spring Rate (kg/mm) Standard Travel (mm) Available Types
Size 00 5 25 0.4 50 / 100 Type A, B, C, D, E, F, G
Size 01 20 80 1.2 50 / 100 Type A, B, C, D, E, F, G
Size 02 60 240 3.6 50 / 100 Type A, B, C, D, E, F, G
Size 03 180 600 8.4 50 / 100 / 200 Type A, B, C, D, E, F, G
Size 04 400 1,400 20.0 50 / 100 / 200 Type A, B, C, D, E, F, G
Size 05 1,000 3,200 44.0 50 / 100 / 200 Type A, B, C, D, E, F, G
Size 06 2,500 7,500 100.0 50 / 100 / 200 Type A, B, C, D, E, F, G
Size 07 6,000 15,000 180.0 50 / 100 / 200 Type A, B, C, D, E, F, G

Note: Higher load capacity units up to 25,000 kg and custom travel stroke requirements (e.g. 250 mm or 300 mm) are custom designed upon request by our engineering department.