Mechanical Seal Mtex Dual seal
Type in the Iseal : IStex Dual seal
- Shaft diameter: d1 = 25 … 80 mm (1″ … 3.15″)
- Temperature: t = –40 °C … +220 °C (–40 °F … + 428 °F)
- Pressure: p1 = 25 bar (232 PSI)
- Sliding velocity: vg = 20 m/s (66 ft/s)
Barrier fluid circulation system:
p3max = 16 bar (232 PSI)
Δp (p3–p1) ideal = 2 … 3 bar (29 … 44 PSI)
Δp (p3–p1) max.
= 10 bar (145 PSI) at <120 °C (<248 °F)
= 5 bar (73 PSI) at ≤ 220 °C (≤232 °F)
API Plan 52 (53/54)
Pump startup:
Δp (p3–p1) max.16 bar (232 PSI) allowed
| Brand | Iseal |
|---|
Description
| Item | Description |
| 1 | Bellows unit |
| 2 | O-Ring |
| 3 | Set screw |
| 4 | Seat |
| 5 | O-Ring |
| 6 | Shaft sleeve |
| 7 | O-Ring |
| 8 | Cover |
| 9 | Seal face |
| 10 | O-Ring |
| 11 | Spring |
| 12 | Seat |
| 13 | O-Ring |
| 14 | Drive collar |
| 15 | O-Ring |
| 16 | Set screw |
| 17 | Retaining ring |
| 18 | Assembly fixture |
| 19 | Hex socket head screw |
| 20, 22 | Gasket |
| 23 | Screw plug |
Advantages
- Ideal seal for standardizations
- Universal applicable for packings conversions, retrofits or OEM
- No dimensional modification of the seal chamber (centrifugal pumps) necessary, small radial installation height
- Trouble-free running due to bellows unit with vibration dampers (essential in case of dry-running)
- No damage of the shaft by dynamically loaded O-Ring
- Self cleaning effect of the bellows
- Straightforward and easy installation due to pre-assembled unit
Features
- Double seal
Mtex-DN: API Plan 52 (53/54)
Mtex9-DN: API Plan 53/54 - Cartridge
- Balanced
- Independent of direction of rotation
- Metal bellows
- Stationary Springs
- Pumping device independent of direction of rotation
Materials
- Seal face:
Carbon graphite (A), Silicon carbide (Q1) - Seat:
Silicon carbide (Q1), Tungsten carbide (U2) - Secondary seals:
FPM (V), EPDM (E), FFKM (K) - Bellows: Inconel® 718 (M6)
- Springs: Hastelloy® C-4 (M)
- Metal parts: CrNiMo steel (G), Duplex (G1)
Recommended applications
- Process industry
- Chemical industry
- Hot media
- Cold media
- Highly viscous media
- Pumps
- Special rotating equipment
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Cuntact US
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download Mtex Dual seal (IStex dual seal) Iseal mechanical seal catalog
