Crane Process Flow Technologies
24
SizeDN
15 20 25 32 40 50 65 80 100 125 150 200 250 300 350
Non-risinghandwheel
3.5 3.5 3.5 1.5
RisingHandwheel
10 10 10 10 10 10 10 10 10 6
6
SaundersKBTypeDiaphragmValves
Materials of Construction
Valve bodies
CAST IRON, GUNMETAL
Screwed DN15 – DN50
CAST IRON, GUNMETAL
Flanged DN15 –DN350*
* Contact us for materials range
TypeKBValves –maximumworkingpressure inbar
Maximumworking pressure for KB valves shown is for manual valves, defined as themaximum line pressure against which valvesmay be
operated to closed position up to and including 55°C. For ESactuators, please refer to appropriate actuator performance selection technical
data sheets.
Rubber lined
body data
Soft rubber linings
Natural (Polyisoprene),
40–46° IRHD
Polychloroprene,
72–78° IRHD
Butyl (Isobutylene
isoprene), 60–66° IRHD
Hard ebonite rubber
HRL, 75–85° ShoreD
Lining thickness range
2–4.5mm (DN20–DN350)
Valve body lining –
production tests
DiaphragmMaterials
Grades Elastomer Type
General Service&Approvals
AA
Natural rubber (polyisoprene)
Abrasives in slurry or dry
metal oxide pigmented – brown powder form
sulphur cured, black reinforced
C
ButadieneAcrylonitrile, (Nitrile)
Lubricatingoil, cuttingoils,
sulphur cured, black
paraffin, animal and vegetable
reinforced
oils, aviation kerosene
HT
Polychloroprene, sulphur cured,
Abrasives slurries containing
black reinforced
hydrocarbons
226
Fluoroelastomer, amine cured,
Concentrated acids, aromatic solvents,
black reinforced
chlorinated solvents, unleaded
petroleum
300
Isobutylene Isoprene, resin
Abrasive slurries, aciddigested slurries,
curedblack reinforced
alkalis, dry powders
425
Ethylene propylene
Abrasive slurries, aciddigested slurries,
(EPM) organic peroxide cured,
alkalis, dry powders
black reinforced
Material
Grade
Fluoroelastomer
226
Polychloroprene
HT
Nitrile
C
Butyl
300
EPM
425
Natural Rubber
AA
All Saunders lined valves
have each body
individually tested for
lining integrity.
Glass lining –
Spark test 10kV ac
Rubber, Butyl,
Polychloroprene,
Natural –
Spark test 14kV ac/dc
Rubber, HRL –
Spark test 17kV ac/dc
DiaphragmMaterials–Visual ProcessResistanceGuide
A B R A S I O N R E S I S TA N C E
High
C O R R O S I O N / C H E M I C A L R E S I S TA N C E
High
Fluoroelastomer
Polychloroprene
Butyl/EPM
Nitrile
Q
Natural Rubber
