Type 201
- Dual seal
- Cartridge
- Balanced
- Independent of direction of rotation
- Double pressure balanced
- Shrink-fitted seal faces can be easily replaced with other materials.
(Not suitable for temperatures above 300°C)
- Universal applicable for packings conversions, retrofits or original equipment
- No damage of the shaft by dynamically loaded O-Ring
- Extended service life
- Installation faults are avoided, cost-effective
- No damage caused by dirt entered during assembly
- Straightforward and easy installation due to pre-assembled unit (reduced down-times)
- Individual adaptation to pump design possible
- Customer specific versions available
Features
Operating range
Materials
Shaft diameter: d1 = 20 ... 100 mm (1.000" ... 4.000")
Other sizes on request
Temperature: t = –40 °C ... +220 °C (–40 °F ... +428 °F)
(Check O-Ring resistance)
Sliding face material combination CB VS SSIC
Pressure: p1 = 25 bar (363 PSI)
Sliding velocity: vg = 16 m/s (52 ft/s)
Sliding face material combination SSIC VS SSIC or TC VS SSIC
Pressure: p1 = 20 bar (290 PSI)
Sliding velocity: vg = 10 m/s (33 ft/s)
Barrier fluid circulation system:
P3max = 25 bar (290 PSI)
P3max = 7 bar (102 PSI) for poor barrier media
Recommended supply medium: Max. ISO VG 5
Axial movement: ±1.0 mm, d1 ≥ 75 mm ±1.5 mm
Rotary Seal Face: SSIC, CB, Tungsten carbide
Stationary Seal Face: SSIC, Tungsten carbide
Secondary seals: FKM, EPDM, FFKM, FEPM, NBR
Springs: SUS316, Hastelloy® C-4
Metal parts: SUS316
*Other configuration of material also available on request
Item Item Description
1, 4, 9, 10, 11, 15,18 O-Ring
2 Sleeve
3, 17 Spring
5 Rotary Housing In
6 Rotary Seal Face In
7 Stationary Seal Face In
8 Stationary Housing In
12 Stationary Housing Out
13 Stationary Seal Face Out
14 Rotary Seal Face Out
16 Rotary Housing Out
19 Gland
20 Screw
21 Gland Ring
22 Set-Ring
23 Lock Washer
24 Set Screw
25 Screw
26 Setter
