Variable Spring Hangers and Supports

Variable spring hangers are provided in seven canister types and four series to support loads ranging from 13.0 kg to 27,000 Kilograms. An inventory of assemble variable spring hangers and rigid hanger components ready for assembly are maintained to enable AAA Supports to respond promptly to our customers' needs.

Variable Spring Supports - F Type

Variable Spring Hangers - B Type

Variable Spring Supports are used where pipeline are under high pressure, high temperature and results in vertical movement. To allow vertical movement, the entire loads are taken care of by Variable Spring Supports in both the hot and cold position. The Variable Spring Supports are utilized to protect valuable instrument, pipeline a critical component. The designs of the Variable Spring Supports are based on loads, movements and modals to suit the required position on pipelines and also depending on the weather condition.

Variable Spring Supports are used where pipeline are under high pressure, high temperature and results in vertical movement. To allow vertical movement, the entire loads are taken care of by Variable Spring Supports in both the hot and cold position.

Range

We offer five series prefixed VS1, VS2, VS3, VS4 & VS5 twenty-five spring sizes allow a range of load 8.2kgs to 27.43 tons. In all the series VS1, VS2, VS3, VS4& VS5 provide travel 40mm, 60mm 80mm, 120mm &160mm respectively. It also takes 5 co-liner displacements.

Method of Selection (Variable)

Material

SPRING	EN-42 or IS-4454 Part-1 Gr-II upto Ø12mm & EN-45/EN-47-ABOVE Ø12mm.
CASING	IS-1239/3589(medium) & IS-2062
HANGER ROD	Carbon steel to IS-2062 Gr A/B
TOP LUG	Carbon steel to IS-2062 Gr A/B
BEAM ATTACHMENT	Carbon steel to IS-2062 Gr A/B
TURN BUCKLE	Carbon steel to IS-1875 Gr CL-2(Forged) upto M30
PIPE TB (SA 106 Gr B)	Carbon steel to IS-2062 Gr A/B (Machined) above M30
PIPE CLAMP, SHOE & U-BOLT	Carbon steel to IS-2062 Gr A/B upto Temperature 350°C
	Alloy steel to 1%Cr., 0.5%Mo (ASTM A182 F11) upto Temperature 470°C
	Alloy steel to 2%Cr., 1%Mo (ASTM A182 F22) upto Temperature 550°C
	Stainless steel to AISI 304/316/321 above temperature 550°C
BOLT /STUD & NUT	Carbon steel to IS-1363/67 CL-4.6/4.0 upto Temperature 340°C
	Alloy steel to A193 Gr.B7/A194Gr.2H upto Temperature 470°C
	Alloy steel to A193 B16/A194 Gr.4 upto Temperature 550°C
	Stainless steel to A193 B8/A194 Gr.8 above Temperature 550°C
PLATE/ST.STEEL	Carbon steel to IS-2062 Gr A/B
LOW FRICTION PAD	PTFE upto Temperature 210°C
	Graphite upto Temperature 550°C
STEEL BALL	Carbon steel upto Temperature 350°C
	Stainless steel upto Temperature 550°C
NAME PLATE & LOAD-TRAVEL SCALE	Aluminum Anodized
PAINTING
Our Standard	Two Coats Of Zinc Chromate Red/Grey oxide primer IS:2074 and one coat Of Finish enamel paint to IS-5:1973
On Request	Spring to be PU / Neo-prene rubber coating.
	Casing & component to be hot dip galvanized to IS: 2629/A153/A123 except threaded portion.
	Epoxy zinc phosphate primer & high build epoxy finish.
	Threaded component shell be electro zinc coated to ASTM B633/B76
	Threaded component shell be electro zinc coated to ASTM B633/B76
MARKING	Each and every variable & constant supports are fitted with a metallic load travel scale cum name plate on which all references are punched Such as Cold & Hot Load, Travel, Support Tag Number, Size etc. All items of ancillary equipment are clearly identified with Clint's tag number.
PACKING	Each and every spring support and its ancillary equipment are properly packed in Wooden Box/Crate. Packing list shall indicate contain of item against respective box no.

Guarantee

Each and spring support /hanger assembly is guaranteed for a period of 18 month from the date of supply or 12 months from the date of commissioning, whichever is earlier. We shall replace with free of charges if any materials, which owing to defect in raw materials or workmanship, should fail within guaranteed period.