Hangzhou Bestseal International Trade Co., Ltd.
| Seal face | Silicon carbide (Q1), Carbon graphite resin impregnated (B), Tungsten carbide (U2) |
| Sliding velocity | vg = 10 m/s (33 ft/s) |
| Metal parts | CrNiMo steel (G), CrNiMo cast steel (G) |
| Sliding face material combination BQ1 Pressure | p1 = 25 bar (363 PSI) |
| Temperature | -40 °C ... 220 °C (-40 °F ... 428 °F) |
| Seat | Silicon carbide (Q1) |
| Packaging Details | Carton |
| Sliding face material combination Q1Q1 or U2Q1 Pressure | p1 = 20 bar (290 PSI) |
| Springs | Hastelloy® C-4 (M) |
| Supply Ability | 1000000/Month |
| Shaft diameter | d1 = 25 ... 100 mm (1.000" ... 4.000" |
| Delivery Time | 15 working days |
| Secondary seals | FKM (V), EPDM (E), FFKM (K), Perfluorocarbon rubber/PTFE (U1) |
| Standards and approvals | Compliant to TA Luft (German Clean Air Act) |
| Payment Terms | T/T,Western Union,D/P,D/A,L/C |
| Certification | ISO9001 |
| Model Number | Cartex Dual |
| Brand Name | BESTSEAL |
| Place of Origin | CHINA |
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Product Specification
| Seal face | Silicon carbide (Q1), Carbon graphite resin impregnated (B), Tungsten carbide (U2) | Sliding velocity | vg = 10 m/s (33 ft/s) |
| Metal parts | CrNiMo steel (G), CrNiMo cast steel (G) | Sliding face material combination BQ1 Pressure | p1 = 25 bar (363 PSI) |
| Temperature | -40 °C ... 220 °C (-40 °F ... 428 °F) | Seat | Silicon carbide (Q1) |
| Packaging Details | Carton | Sliding face material combination Q1Q1 or U2Q1 Pressure | p1 = 20 bar (290 PSI) |
| Springs | Hastelloy® C-4 (M) | Supply Ability | 1000000/Month |
| Shaft diameter | d1 = 25 ... 100 mm (1.000" ... 4.000" | Delivery Time | 15 working days |
| Secondary seals | FKM (V), EPDM (E), FFKM (K), Perfluorocarbon rubber/PTFE (U1) | Standards and approvals | Compliant to TA Luft (German Clean Air Act) |
| Payment Terms | T/T,Western Union,D/P,D/A,L/C | Certification | ISO9001 |
| Model Number | Cartex Dual | Brand Name | BESTSEAL |
| Place of Origin | CHINA | ||
| High Light | EagleBurgmann Cartex dual mechanical seal ，standard cartridge pump seals ，mechanical seals for pumps with warranty | ||
EagleBurgmann Cartex Dual Seal Standard Cartridge Mechanical Seals for Pumps
| Cartex-DN Dimensions | ||||||||||
| D1 | D2 | D3min | D3max | L | L12 | L2 | L3 | Dm | Dz | S |
|---|---|---|---|---|---|---|---|---|---|---|
| 25 | 43.0 | 44.0 | 51.5 | 86.5 | 53.4 | 33.1 | 25.4 | 62 | 105 | 13.2 |
| 28 | 46.0 | 47.0 | 52.0 | 86.5 | 53.4 | 33.1 | 25.4 | 62 | 105 | 13.2 |
| 30 | 48.0 | 49.0 | 56.0 | 86.5 | 53.4 | 33.1 | 25.4 | 65 | 105 | 13.2 |
| 32 | 49.8 | 51.0 | 57.0 | 86.5 | 53.4 | 33.1 | 25.4 | 67 | 108 | 13.2 |
| 33 | 49.8 | 51.0 | 57.0 | 86.5 | 53.4 | 33.1 | 25.4 | 67 | 108 | 13.2 |
| 35 | 53.0 | 54.0 | 61.5 | 86.5 | 53.4 | 33.1 | 25.4 | 70 | 113 | 13.2 |
| 38 | 56.0 | 57.0 | 66.0 | 86.5 | 53.4 | 33.1 | 25.4 | 75 | 123 | 13.2 |
| 40 | 58.0 | 59.0 | 68.0 | 86.5 | 53.4 | 33.1 | 25.4 | 75 | 123 | 14.2 |
| 42 | 60.5 | 61.5 | 69.5 | 86.5 | 53.4 | 33.1 | 25.4 | 80 | 133 | 14.2 |
| 43 | 60.5 | 61.5 | 70.5 | 86.5 | 53.4 | 33.1 | 25.4 | 80 | 133 | 14.2 |
| 45 | 62.5 | 64.0 | 73.0 | 86.5 | 53.4 | 33.1 | 25.4 | 81 | 138 | 14.2 |
| 48 | 65.6 | 67.0 | 75.0 | 86.5 | 53.4 | 33.1 | 25.4 | 84 | 138 | 14.2 |
| 50 | 68.0 | 69.0 | 78.0 | 86.5 | 53.4 | 33.1 | 25.4 | 87 | 148 | 14.2 |
| 53 | 72.0 | 73.0 | 87.0 | 86.5 | 53.4 | 33.1 | 25.4 | 97 | 148 | 18.0 |
| 55 | 73.0 | 74.0 | 88.0 | 86.5 | 53.4 | 33.1 | 25.4 | 90 | 148 | 18.0 |
| 60 | 78.0 | 79.0 | 91.0 | 86.5 | 53.4 | 33.1 | 25.4 | 102 | 157 | 18.0 |
| 65 | 84.8 | 85.7 | 98.5 | 86.5 | 53.4 | 33.1 | 25.4 | 109 | 163 | 18.0 |
| 70 | 93.0 | 95.0 | 108.0 | 86.5 | 53.4 | 33.1 | 25.4 | 118 | 178 | 18.0 |
| 75 | 100.0 | 101.6 | 118.0 | 108.0 | 63.9 | 44.1 | 28.0 | 129 | 190 | 18.0 |
| 80 | 106.4 | 108.0 | 124.0 | 108.0 | 63.9 | 44.1 | 28.0 | 135 | 195 | 18.0 |
| 85 | 109.5 | 111.1 | 128.0 | 108.0 | 63.9 | 44.1 | 28.0 | 139 | 198 | 22.0 |
| 90 | 115.9 | 117.5 | 135.0 | 108.0 | 63.9 | 44.1 | 28.0 | 145 | 205 | 22.0 |
| 95 | 119.1 | 120.7 | 138.0 | 108.0 | 63.9 | 44.1 | 28.0 | 148 | 208 | 22.0 |
| 100 | 125.4 | 127.0 | 144.0 | 108.0 | 63.9 | 44.1 | 28.0 | 154 | 218 | 22.0 |
Shaft diameter: d1 = 25 ... 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 BQ1
Pressure: p1 = 25 bar (363 PSI)
Sliding velocity: vg = 16 m/s (52 ft/s)
Sliding face material combination Q1Q1 or U2Q1
Pressure: p1 = 20 bar (290 PSI)
Sliding velocity: vg = 10 m/s (33 ft/s)
Barrier fluid circulation system:
p3max = 25 bar (363 PSI)
Δp (p3 - p1)ideal = 2 ... 3 bar (29 ... 44 PSI),
7 bar (102 PSI) for barrier media with poor lubricating properties.
Pump startup:
Δp (p3 - p1)max = 25 bar (363 PSI) allowed
Recommended supply medium:
max. ISO VG 5
Axial movement: ±1.0 mm, d1 ≥75 mm ±1.5 mm
Seal face: Silicon carbide (Q1), Carbon graphite resin impregnated (B), Tungsten carbide (U2)
Seat: Silicon carbide (Q1)
Secondary seals: FKM (V), EPDM (E), FFKM (K), Perfluorocarbon rubber/PTFE (U1)
Springs: Hastelloy® C-4 (M)
Metal parts: CrNiMo steel (G), CrNiMo cast steel (G)
The EagleBurgmann QFT1000 buffer system and QFT2000 vessels are suitable for Cartex-DN in back-to-back arrangement. The EagleBurgmann TS1016 and TS2000 thermosiphon systems support double and back-to-back seal configurations.
Company Details
Business Type:
Manufacturer
Year Established:
2012
Total Annual:
3000-5000
Employee Number:
200~300
Ecer Certification：
Verified Supplier
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