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TYPE 1670

TYPE 1670
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TYPE 1670 Technical Specification API 682 CATEGORY 2 & 3 TYPE B METAL BELLOWS SEALS A - Bellows Assembly Insert/Primary Ring Mating Ring/Seat O-Ring Sleeve Gland Gland O-Ring Segmented Bushing Assembly Distributed Flush Welded Metal Bellows Type 1670 (Category 2 or 3 with segmented bushing and distributed flush shown) • Edge-welded metal bellows • Easy-to-install cartridge design with registered fit • Static secondary seals • Standard components • Segmented spring-loaded carbon throttle bushing for effective containment (optional) • Distributed flush optimizes circulation of liquid at faces and prevents trapped vapor • Aromatic fractionation products (benzene, toluene, solvents, etc.) • Crude oil fractionation products (fuel oil, lubricating oil, gasoline, etc.) • Chemicals • Caustics • Some acids • Aqueous solutions Available with a pumping ring when utilizing an API • Lubricating liquids

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API 682 CATEGORY 2 & 3 TYPE B METAL BELLOWS SEALS Technical Specification Type 1670 API Type B Arrangement 1 - Single Cartridge Type 1670 Standard Arrangement Shown (Category 2 Seal) OR Optional Flush Arrangement Pumping Ring Floating Bushing Segmental Bushing Bushing Arrangements Basic Pressure Rating Pressure bar(g) Pressure psi(g) 435 a nd a (Ba rd), Tun lanc g nC ed fo sten Carbid arb 360 eo r High ide Pressur r Silicon Carbide or S e) ilico n Ca rbide 290 (Stand Maxim ard) um Pre ssure L imit gs Contact John Crane for applications in this area. Seal Size Notes: NOTES: 1. Basic Pressure...

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API 682 CATEGORY 2 & 3 TYPE B METAL BELLOWS SEALS Technical Specification Design Features * Optimum 45° tilt angle * Three-sweep radius * Nesting ripple plate design * Static secondary seal * Light spring loads Benefits * Uniform plate rigidity and stress distribution * Enhanced fatigue strength * Pressure-balanced by design * Less heat * Lower power consumption

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API 682 CATEGORY 2 & 3 TYPE B METAL BELLOWS SEALS Technical Specification Angular and Radial Movement Excessive runout will have a detrimental effect on seal performance in the form of component wear or excessive leakage. API 682 limits runout as follows: n entering of the seal is to be by a register fit. The register fit surface shall be concentric to the shaft and have a total indicated C runout (FIM) of not more than 0.005"/125 micrometers. n Squareness of the seal chamber face to the shaft shall not exceed 0.0005" per inch of seal chamber bore (15 micrometers per cm). n unout of the...

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