Original
By certification 
Features
Fully split single seal, 2 x 2 segments, pre-assembled
Semi-cartridge
Balanced
Stationary springs
Bi-directional
External pressurization
Built-in flushing connections
Installation and wear control
Advantages
Reduced repair and downtime: 2 x 2 pre-assembled design speeds up and simplifies installation installation because pump does not have to be disassembled.
Long service life: precise pre-alignment because of pre-assembled segments. Stationary springs which are protected from the product prevent clogging.
Greater flexibility during installation: no modification necessary because the seal is located outside of the stuffing box.
Shaft protection: uniform torque transmission via clamping ring prevents damage caused by set screws.
Dependable operation: mechanical decoupling of clamping ring (torque transmission) avoids distortion of the seat.
Simple monitoring of the seal during operation because of mechanical wear indicator on the seal face.
Low leakage: elimination of secondary seals eliminates leakage paths between split components.
High tolerance to shaft deflections ensured by stationary design and elastic seat mounting (gasket).
Operating range
Shaft diameter:
d1 = 50 … 150 mm (1.940" … 6.000")
Pressure: p1 = 10 bar (145 PSI)
Temperature:
t = -40 ... +150 °C (- 40 … + 300 °F),
above 80 °C (175 °F) flush is recommended
Sliding velocity: vg = 10 m/s (33 ft/s)
Axial movement: ±1.5 mm (1/16")
Radial movement: ±0.8 mm (1/32")
Materials
Seal face: Carbon graphite antimoniny impregnated (A), Silicon carbide (Q6)
Seat: Silicon carbide (Q6)
Secondary seals: FKM (V), EPDM (E), NBR (P)
Springs: CrNiMo steel (G)
Metal parts: CrNiMo steel (G)
Recommended applications
Process industry
Petrochemical industry
Chemical industry
Power plant technology
Pulp and paper industry
Centrifugal pumps
Agitators
Displacement pumps
Conveying pulp with stock pumps
Conveying timber to refiners with pumping screws
Circulation of pulp-and-water mixtures in storage vessels
Pump stations for waste water treatment
Cooling water pumps for energy generation
Service
Provide special design
According to the requirements and conditions for the custom processing
Dimensions in mm | ||||||||||||
Dw |
Dw |
d1 |
d2 |
Da |
a |
s |
l1 |
l2 |
l3 |
l4 |
l5 |
X |
50 |
1.969 |
75 |
84 |
138 |
88 |
15 |
63 |
61 |
30 |
45 |
3 |
3/8 NPT |
60 |
2.362 |
89 |
101 |
149 |
105 |
17.5 |
64 |
62 |
30 |
46 |
3 |
3/8 NPT |
70 |
2.756 |
98 |
113 |
176 |
118 |
20 |
64 |
62 |
30 |
46 |
3 |
3/8 NPT |
80 |
3.15 |
110 |
132 |
191 |
135 |
20 |
65 |
63 |
31 |
47 |
3 |
3/8 NPT |
90 |
3.543 |
121 |
140 |
203 |
145 |
22 |
72.5 |
70.5 |
31.5 |
50.5 |
3 |
1/2 NPT |
100 |
3.937 |
131 |
150 |
216 |
155 |
22 |
72.5 |
70.5 |
31.5 |
50.5 |
3 |
1/2 NPT |
110 |
4.331 |
142 |
165 |
230 |
170 |
22 |
72.5 |
70.5 |
31.5 |
50.5 |
3 |
1/2 NPT |
120 |
4.724 |
152 |
175 |
240 |
180 |
22 |
72.5 |
70.5 |
31.5 |
50.5 |
3 |
1/2 NPT |
125 |
4.921 |
162 |
185 |
268 |
190 |
26 |
89.5 |
87.5 |
43.5 |
62.5 |
4 |
1/2 NPT |
140 |
5.512 |
175 |
200 |
303 |
205 |
26 |
89.5 |
87.5 |
43.5 |
62 |
4 |
1/2 NPT |
150 |
5.906 |
188 |
215 |
308 |
220 |
26 |
89.5 |
57.5 |
43.5 |
62.5 |
4 |
1/2 NPT |
Dimensions in inch | ||||||||||||
Dw |
Dw |
d1 |
d2 |
Da |
a |
s |
l1 |
l2 |
l3 |
l4 |
l5 |
X |
1.94 |
49.276 |
2.953 |
3.307 |
5.433 |
3.456 |
0.591 |
2.48 |
2.402 |
1.181 |
1.772 |
0.118 |
3/8 NPT |
2 |
50.8 |
2.953 |
3.307 |
5.433 |
3.456 |
0.591 |
2.48 |
2.402 |
1.181 |
1.772 |
0.118 |
3/8 NPT |
2.125 |
53.975 |
3.11 |
3.465 |
5.787 |
3.622 |
0.591 |
2.48 |
2.402 |
1.142 |
1.772 |
0.118 |
3/8 NPT |
2.375 |
60.325 |
3.504 |
3.976 |
5.866 |
4.134 |
0.689 |
2.52 |
2.441 |
1.181 |
1.811 |
0.118 |
3/8 NPT |
2.438 |
61.925 |
3.642 |
4.114 |
6.181 |
4.272 |
0.689 |
2.52 |
2.441 |
1.181 |
1.811 |
0.118 |
3/8 NPT |
2.5 |
63.5 |
3.642 |
4.114 |
6.181 |
4.272 |
0.689 |
2.52 |
2.441 |
1.181 |
1.811 |
0.118 |
3/8 NPT |
2.75 |
69.85 |
3.858 |
4.449 |
6.929 |
4.646 |
0.787 |
2.52 |
2.441 |
1.181 |
1.811 |
0.118 |
3/8 NPT |
2.938 |
74.625 |
4.213 |
4.803 |
7.559 |
5 |
0.787 |
2.559 |
2.48 |
1.299 |
1.85 |
0.118 |
3/8 NPT |
3 |
76.2 |
4.213 |
4.803 |
7.559 |
5 |
0.787 |
2.559 |
2.48 |
1.299 |
1.85 |
0.118 |
3/8 NPT |
3.25 |
82.55 |
4.331 |
5.197 |
7.52 |
5.315 |
0.787 |
2.559 |
2.48 |
1.22 |
1.85 |
0.118 |
3/8 NPT |
3.5 |
88.9 |
4.764 |
5.512 |
7.992 |
5.709 |
0.866 |
2.854 |
2.776 |
1.24 |
1.988 |
0.118 |
1/2 NPT |
3.625 |
92.075 |
4.764 |
5.512 |
7.992 |
5.709 |
0.866 |
2.854 |
2.776 |
1.24 |
1.988 |
0.118 |
1/2 NPT |
3.75 |
95.25 |
4.921 |
5.63 |
8.11 |
5.827 |
0.866 |
2.854 |
2.776 |
1.24 |
1.988 |
0.118 |
1/2 NPT |
3.875 |
98.425 |
5.157 |
5.906 |
8.504 |
6.102 |
0.866 |
2.854 |
2.776 |
1.24 |
1.988 |
0.118 |
1/2 NPT |
4 |
101.6 |
5.157 |
5.906 |
8.504 |
6.102 |
0.866 |
2.854 |
2.776 |
1.24 |
1.988 |
0.118 |
1/2 NPT |
4.25 |
107.95 |
5.591 |
6.496 |
9.055 |
6.693 |
0.866 |
2.854 |
2.776 |
1.24 |
1.988 |
0.118 |
1/2 NPT |
4.5 |
114.3 |
5.984 |
6.89 |
9.449 |
7.087 |
0.866 |
2.854 |
2.776 |
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