Type 3604/3604HTC/3604HTCDP

Name: Type 3604/3604HTC/3604HTCDP
Brand: John Crane

API 682 Type C, Arrangement 3, stationary metal bellows cartridge seal

The Type 3604/3604HTC/3604HTCDP is a dual face-to-face stationary cartridge seal for high-temperature refinery services that is fully API 682 qualified. Dual stationary arrangements are a sealing option within the API 682 specification and have gained popularity with many end users and pump OEMs. These stationary API 682 cartridge seals utilise a design innovation by incorporating high-temperature, corrosion-resistant sealing (HTC) technology for superior seal face stability at elevated temperatures. A double-ply version is available that can help improve pressure carrying capability to 600 psi(g)/42 bar(g).

Type 3604: Dual-pressurised face-to-face stationary bellows cartridge seal assembly. Utilises a Type 604 stationary inner and outer seal.

Type 3604HTC: Dual-pressurised face-to-face high-temperature, corrosion-resistant stationary bellows assembly. Utilises Type 604HTC technology.

Type 3604HTCDP: Dual-pressurised face-to-face high-temperature, corrosion-resistant stationary bellows assembly. Utilises Type 604HTCDP double-ply technology.

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Features
Parameters
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Features

California Residents: PROPOSITION 65 WARNING
API 682 qualified.
HTC technology.
All-Inconel metallurgy.
Stationary bellows designed to accommodate high shaft-to-seal chamber misalignment.
Retained inner mating ring for high-pressure and vacuum service.
Advanced silicon carbide.
Withstands reverse pressurization.
Internal circulation device (pumping ring) standard.
Carbon throttle bushing for effective containment.
DOUBLE-PLY bellows for higher-pressure applications.
Steam quench connection optional.
Tapered bore inner gland promotes fluid movement for enhanced cooling.

Parameters

Temperature Limits: -100°F to 800°F/-75°C to 425°C
Pressure Limits: Vacuum to 300 psi(g)/20 bar(g)
(See Basic Pressure Ratings curve on Product Specification sheet.)
DOUBLE-PLY: Vacuum to 600 psi(g)/42 bar(g)
(Maximum pressure rating can vary; consult John Crane Engineering for maximum DOUBLE-PLY pressure rating for your specific application.)
Speed Limits: 10,000fpm/50m/s