|
|
 |
|
 |
 |
TK338 |
 | |
|
|
Profile
TK338 mechanical seals are fully preasembled.they are balanced,can be used in either direction of rotation and come with all the connections you need for the most common modes of operation. |
 |
 |
Axial movement max:¡À1.0mm
From d1=75¡À1.5mm
Pressure and sliding velocity measure-mentswere taken usingdemineralized water.
|
 |
Tk338-SN
Single seal with flushing connection(A)
TK338-SNO
Single seal without connections,for "dead-end" operation.
|
 |
TK338-QN/TN
Single seal for operation with unpressurized fluid quench.Same as "-SN" version but with outboard lip seal(longer fitting length).The cover has auxiliary connections for flushing (A) and quench (B).The TK338-TN version has a throttle ringmade of carbon graphite or PTFE reinforced with carbon fiber. |
 |
Tk338-DN
Double seal for sterile process applications.Specially formed secondary seals eliminate dead space on the inboard side.EHEDG compliant;FDA approved materials;suitable for CIP/SIP applications.Can also be used for quench operaation up to 0.5 bar max.
p1=0.5...16(25)bar
t=-20...140(150)degree
Vg=10m/s
|
 |
Tk338-HDN
Double seal,double pressure balanced(the seal remains closed in case of buffer fluid pressure failure or reverse pressure);buffer fluid system required:integrated circulation system eliminates the need for an additonal circulation device.
If used as a double seal,a buffer fluid sysrem will be required(e.g.JGM TS 2000-both seals are always internally pressurized).Intandem operation,the quenching fluid is,depending on operating conditions used in dead end (API610,Plant) or throughflow mode (API610,Plant)
or throughflow mode (API610,Plan 52 or 54-inboard seal externally pressurized). | |
| Operating limits |
d1=25...100mm(1"...4")
t=-40...+220degree
(check O-ring temperature resistance)
P1.Vg see diagramm below
P3=25 bar
¡÷p(p3-p1)...25bar
(1.5...2bar,7bar for buffer media with poor lubrication characteristics recommended) | |
| |
| Unit:mm |
 | |
|
|
 |
|
 |
|
