Original
By certification 
Structure description:
Equivalent to Burgmann LY9DZSS
API 682 Category 2 and 3, Type B,Arrangement 3 seal
Dual seal in back-to-back arrangement
Same seal size of inboard and outboard seal
Balanced
Cartridge unit
Rotating metal bellows
Shrink fitted seal ring and solid mating ring
Operating range:
Pressure: p = vacuum ... 20 bar (290 PSI)
Temperature: t = -40 C ... +200 C (-40 F ... +392 F)
Sliding velocity: vg ... 23 m/s (75 ft/s)
Viscosity: ... 1,000 mPas
Solids content: ... 0.5 wt.%
Materials:
Seal ring: Blister resistant carbon
Mating ring:Silicon carbide SSiC (Q1), RBSiC (Q2)
Bellows: Hastelloy庐 C-276 (M5), option: Inconel庐 718 (M6)
Secondary seals:FKM (V), FFKM (K), EPDM (E), NBR (P)
Metal parts: CrNiMo steel
Enactus -LY9DZSS Dimensions(mm) | |||||||
API/d1 |
API/d2 |
API/d3 |
d5 |
l1 |
l2 |
l3 |
l4 |
20 |
70 |
105 |
- |
- |
- |
- |
- |
30 |
80 |
115 |
138 |
125 |
98 |
27 |
82 |
40 |
90 |
125 |
148 |
128 |
98 |
30 |
82 |
50 |
100 |
140 |
168 |
137 |
107 |
30 |
87 |
60 |
120 |
160 |
188 |
137 |
107 |
30 |
87 |
70 |
130 |
170 |
198 |
137 |
107 |
30 |
87 |
80 |
140 |
180 |
208 |
137 |
107 |
30 |
87 |
90 |
160 |
205 |
238 |
145 |
115 |
30 |
95 |
100 |
170 |
215 |
248 |
150 |
115 |
35 |
95 |
110 |
180 |
225 |
258 |
150 |
115 |
35 |
95 |
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