Crane Process Flow Technologies
10
SaundersA TypeDiaphragmValves
Materials of Construction–Diaphragms
We at Crane Process Flow Technologies are proud of our core
competence, the in-housemanufacture of Saunders diaphragms for
use within our valve range. Many years of experience has resulted in a
range of diaphragms, which handle a wide variety of fluids with total
security. The guaranteed high performance of Saunders diaphragms
results from stringent quality control and continuous development.
High flex performance
Good compression
set properties
Chemical resistance
Abrasion resistance
Anti-aging
Approvals, traceability
Rubber Diaphragms
The polymer material
is bonded with a high
strength woven
reinforcement to
ensure maximum
strength and
durability.
Rubber diaphragm screw fixing
PTFE diaphragm bayonet fixing
KeyConsiderations DiaphragmConstruction
PTFEDiaphragms
A two piece construction PTFE face with a rubber backing
diaphragm to increase pressure rating and durability. These
diaphragms have a bayonet fitting to ensure reliable installation,
reduced point loading and ensure maximum life. The 214K is
three piece specially reinforced for chlorine service.
Constructed withmulti-
layers of rubber and
nylon reinforcement
Studs are attached
with bonding adhesive
andmechanical
anchorage
Rib on face for weir
flange and across weir
for leak tight sealing
and lower closure
torque
Compressor support in
both the open and
closed positions for
extended life
