WATSON MARLOW
The tank-bottom valve of choice
ASEPCO valves are designed for use in the most
demanding high-purity fluid streams, including media
preparation, fermentation, harvest, separation, refining
and purification.
ASEPCO’s patented valve architecture includes a unique
radial diaphragm that forms three seals in one - at the
inlet, on the compound shoulder and an O-ring at the
bottom of the valve chamber.
This architecture ensures:
•
Self-draining with no entrapment areas
•
No leakage
•
No cross-contamination
•
Easy to clean
•
Extremely fast and easy maintenance
Delivering purity and reliability, ASEPCO tank bottom
valves are preferred over weir style valves which can
introduce product entrapment, leakage and be high
maintenance.
Lowest lifetime cost
ASEPCO valves have an easy diaphragm changeover
principle – taking less than a minute to complete in most
circumstances. Valve benefits include
•
No tools needed and no special training required
•
Integrated, non-adjustable travel stops
•
Flush mount design and simple clamp assembly
•
Simple four step procedure, as shown below
Extensive testing proves
reliability
Diaphragms materials are USP Class VI and FDA CFR
177.300 tested and approved, with extensive steam and
lifetime testing. This means they complete an impressive
continuous 100-hour testing in 132-137C, with actuation
every 20 minutes.
Radial diaphragm
™
tank-bottom valves
Impressive cost savings
Customer statements include
“savings of up to 80% maintenance
time”.
1
2
3
4
Install new diaphragm on actuator
Remove Tri-clamp
Remove actuator and diaphragm assembly
from valve body
Remove used diaphragm from actuator
A special steam port can be added to the ASEPCO radial
diaphragm valves for steam-in-place or flush through,
whilst in-situ. This feature solves downstream problems
and speeds product changeover.
Seat
Patented radial shoulder seal
Simple, uniform sealing, every time
Diaphragm
Chamber
Self-draining
Inlet
Outlet
O-ring seal
Heavy-duty, extra thick weld
flange for better, more consistent
weldability