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Butterfly valve gaskets

Butterfly Gaskets
 
Butterfly Gaskets

Butterfly-valve gaskets are made of different types of elastomer, with or without metal inserts. PTFE and aluminium coating on request.
In over thirty years of experience, Oldrati has developed formulations giving excellent product reliability and durability, which is very important in applications such as in oil and gas pipelines. Very high resistance to high and low temperatures. Good resistance to abrasion, excellent compression set.
WRC, KTWD, KTWC, FDE, etc. quality certificates can be provided.
 
Operating temperature range:
Depends on the material used and Oldrati's dedicated formulation.

 
 

Dimensions
 
  Standard
  Oldrati standard (catalogue of dimensions available).

 

 To customer drawing
 
Note: Oldrati makes all gaskets to customer drawing. Sizes range from a few millimetres up to 2500 mm.
 
 

Fields of application

  

Range of materials used
 
  plumbing

 

 NR Natural rubber
  pneumatics

 

 IR Synthetic polyisoprene
  hydraulics

 

 BR Polybutadiene

 

 cars / lorries

 

 SBR Styrene-butadiene rubber

 

 aeronautics

 

 IIR Butyl rubber

 

 shipping

 

 CIIR,BIIR Chlorobutylene and Bromobutylene
  chemicals

 

 EPM Ethylene-prene co-polymer
  petrolchemicals

 

 EPDM Ethylene-pylene terpolymer

 

 railway

 

 NBR Nitrile rubber
  sanitary ware

 

 NBR/PVC Nitrile rubber + polyvinylchloride
  food / household appliances   CSM Polyethylene chlorosulfonate

 

 logistics   CM Polyethylene chloride

 

 DIY   GPO Polyoxypropylene

 

 sports   EVA (or EAM) Copolymer ethyleneacetate
  military   ACM Polyacrilic rubber
  filtration   EACM (or EAM) Ethylene-acrylic rubber
  nuclear power   AU Polyester urethane rubber
  electro-mechanics   EU Polyester urethane rubber
  electronics   T Poly phosphuric rubber
  domestic plumbing

 

 ECO, ETER (or AECO) Epichlorohydrinic rubber, copolyterpolymer
  heating / air conditioning

 

 CO Epichlorohydrinic rubber, copolymer

 

 robotics / automation

 

 VMQ,PVMQ Silicone rubber

 

 hosting / goods handling / logistics

 

 FVMQ Fluorosilicone

 

 mining

 

 FKM (I) Fluorocarbonic rubber
  high voltage     Copolymer and terpolymer
  roads / motorways

 

 FKM (II) Fluorocarbonic rubber, tetrapolymer
  electric household appliances

 

 TFEP Fluorurate propylenic rubber
  wine-making and farming

 

 AFLAS
      NEO Neoprene
      HNBR Hydrogenated nitrile rubber
      TPE Thermoplastic rubber
      TPU Thermoplastic rubber