Installation, operation and maintenance instructions for the John Crane TYPE 609HTC/E CS high‑temperature corrosion‑resistant mechanical seal.
These instructions guide qualified personnel through the safe installation, proper operation, and routine maintenance of the John Crane TYPE 609HTC/E CS mechanical seal. Safety warnings emphasize the need for protective gloves, proper handling of fluorocarbon and PTFE components, and verification of pump alignment before start‑up.
The manual details equipment preparation, dimensional checks, seal setting procedures, and cartridge‑seal installation options. It also lists material construction, operating limits (temperature, pressure, speed), and quality‑assurance requirements, and provides ordering and decommissioning information.
| Operating temperature range | -75 °C to 425 °C (-100 °F to 800 °F) |
|---|---|
| Maximum vacuum pressure | 20 bar / 300 psi |
| Maximum speed | 25 m/s (4,500 sfpm) |
| Bellows material | Inconel®718, Alloy C‑276 |
The seal can operate from –75 °C (‑100 °F) up to 425 °C (800 °F) when using flexible graphite static packing.
Unwrap the components, place the stationary packing, align the mating ring, slide the gland assembly onto the shaft, and compress the flexible graphite packing without damaging the faces.
No maintenance of a seal is possible while it is installed; a spare seal should be kept for replacement.