Crane Process Flow Technologies
08
SaundersA TypeDiaphragmValves
Materials of Construction–ValveBodies
Rubber lined
body data
Plastic lined
body features
SG ironbody – high
mechanical strength
SG ironbody –
mechanically supports
plastic lining
Liningprotected from
ultraviolet (UV)
Injectiongate to side of
weir flangemeans:–
Smoothweir for
diaphragm sealing and
zero leakage
Lining lock-onweir flange
and in-bore inlet
Lining thickness range
3 –5mm (DN20–DN150)
Soft rubber linings
Butyl (Isobutylene
isoprene), 60–66° IRHD
Hard ebonite rubber
HRL, 75–85° ShoreD
Lining thickness range
2–4.5mm
(DN20–DN350)
CAST IRON
BS EN 1561
GJL–250
Flanged
DN15–DN500
SG IRON
BS EN 1563
GJS–450–10
Screwed
DN15–DN50
BS EN 1563
GJS–400–18
Flanged
DN15–DN150
GJS–400–18–LT
CASTSTEEL
ASTMA216WCB Flanged
DN15–DN100
BRONZE
BS EN 1982
CC491K–GS
Screwed
DN15–DN50
BS EN 1982
CC492K–GS
Flanged
DN15–DN100
STAINLESSSTEEL
BS 3100
316C16
Screwed
DN15–DN50
BS 3100
316C16
Flanged
DN15–DN150
Valve body lining –
production tests
StandardUnlinedBodyMaterial
Lined valveweir plan
All Saunders lined
valves have eachbody
individually tested for
lining integrity.
Glass lining –
Spark test 10kV ac
Rubber, Butyl –
Spark test 14kV ac/dc
Rubber, HRL –
Spark test 17kV ac/dc
Plastic lined –
Spark test 20kV ac/dc
Lined valve body section
A Type valve body
ETFE lined
A Type valve
body hard
rubber lined
A Type valve body
PFA lined
