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SPIRAL WOUND GASKET

Product Feature

Spiral wound gasket is a high performance semi-metallic gasket reasonably designed for high temperature/high pressure. It has high elasticity and its tightening strength can be controlled by mounting thickness; therefore it is widely used not only for thermal or nuclear power stations and steam turbine thermo-mechanical devices but also process line or heat transfer fluid line in petroleum refining or petrochemical industry.
This type of gasket is made in spiral shape rolled up tightly by overlapping the filler selected by hoop of V-shape section and specifications and fixed with spot welding at the start and end part of the hoop. For proper fitting for the concerned flange, inner/outer ring or partition should be attached.

Product Types

Product Product
No.
Features Comparison
V#6590
V#6591
V#6592
V#6596
These are the fillers of ValquaFoil tape with strong gas tightness which greatly improves gas and vacuum sealing performance. These are the gaskets with all around capabilities of excellent sealing performance even in pressure change or temperature cycle effect, or under severe condition.  
V#7590
V#7591
V#7592
V#7596
These are the fillers of Valflon tape used for corrosive fluid and oxygen gas sealing.  
V#8590
V#8591
V#8592
V#8596
These are the fillers of Non-As inorganic sheets that are economical non-asbestos alternatives. These can be applied to special asbestos sheets and the equivalent field.  
V#8590L
V#8591L
V#8592L
V#8596L
These are the fillers of Non-As inorganic sheets that are spiral wound gaskets with ValquaFoil tape rolled in the middle part of the gaskets.
ValquaFoil tape increases gas tightness and also greatly improves thermal resistance by arrangement with Non-As fillers.
 
V#─Y It has a metal jacket type partition inside the spiral wound gasket. It is a high performance gasket for multi-tube heat exchangers; it is safe to use in frequent temperature change or severe temperature/pressure condition.  
  V#─S It is a releasing gasket used in manholes/handholes of boilers and bonnet part of valves. There are various shapes such as obround, oval, diamond, square and pear and the shapes shown below are the most widely used.
 

Criteria for Gasket Selection

Gasket Types and Suitability of the Gaskets’ Placement

FLANGE FACINGS
GASKETS
* Note ○ : Applied △ : Applied if necessary ─ : Not applied

Data for Design

Compressing/Decompressing Property

Sealing Performance