Services

 

Services

AAA SUPPORT PVT LTD. is specialized in designing and manufacturing of spring hangers and its accessories. Our comprehensive service includes the supply of a wide range of pipe hangers equipment. Existing facilities for the design and supply of any special pipe support fabricated and in a wide range of materials to suit the customer's requirement. Designing and manufacturing system are controlled documents system incorporated in our quality assurance and quality control plan.

 

Variable Spring Support

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. We offer models such as A, B, C, D, E, F, G and for corrosion resist supports AC, BC, CC, DC, EC, FC & GC.


Method of Selection (Variable)


Standard / Design Principles

Designing, manufacturing dimensions of component and material properties are in accordance with appropriate standards and approved rate of techniques. The following standards have been taken into consideration.

BS 1726 Part 1

Coil Springs

BS 3974 Part 1,2&3

Pipe Supports, Slider & Ancillaries

MSS SP 58

Pipe Hangers Supports (Materials Design & Manufacturing)

MSS SP 69

Pipe Hangers Supports(Selection & Application)

ANSI B 31.3

Petroleum Refinery Piping

ANSI B 31.1

Power Piping

DIN 2092 & 2093

Disc Spring

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.

Inspection & Health Surveys of spring supports

A pipe support failure can cause catastrophic failure of pipe, collateral damage to the plant, fires, explosions, injuries and deaths to personnel. At times poorly functioning pipe supports could be the primary cause of the excess stresses that fails a pipe.

Our goal here is to help engineers and designers recognize the potential problems and to avoid them before they become a catastrophic issue.

AAA Supports Pvt. Ltd. deploys engineering personnel and technicians for field inspection or health surveys of spring supports during shutdowns or whenever there is an emergency requirement during a breakdown.

We do the visual inspection and dimensional check of the physical condition of the spring and the support body. We examine if there is any damaged part or corroded part which might affect the working of the spring supports.

AAA Supports has a vast experience in health survey/ Supervision of Erection and commissioning and inspection activities.

We have been serving in the service industry to the well-known refineries, petrochemicals, power industries, fertilizer industries, chemical plants, etc in the last 5 years or so.

Following are some images that show how lack of proper maintenance of spring supports can lead to the damage of the component or the spring support itself.