^CHESTERTON. Global Solutions, Local Sen/ice. ■ Global acceptance and satisfaction across a variety of industrial applications ■ Exclusive face design for superior emissions control capability ■ Stable, secure sealing under fluctuating conditions ■ Patented features assure precision alignment from start-up ■ Versatile and cost-effective

CHESTERTON® 155™ Cartridge Single Construction Details 3 All O-rings are either static or move on non-metallic, non-fretting surfaces. 3 Seal face support shoulder is precisely square. ^ Integral drive pads cannot fall out. J Hydraulically balanced faces for low frictional heat. j Flush port can be rotated 360° for ease of piping as required. ^ Stationary springs, isolated from fluid to prevent clogging. 3 Patented Adjustable Gland™ fits common bolt arrangements without modification. 3 Self-Centering Lock Ring™ for superior concentricity. 3 Centering strap for simple installation. Self-Centering...

255 Cartridge Dual Seal TM Construction Details 1 Every O-ring is either static or moves on a non-fretting, non-metallic surface. 2 3 Precision seal ring support shoulder maintains rotary alignment. Inboard rotary and stationary faces. Dynamic stress-relieving seal rings, mated over a narrow cross-section for low heat generation. Profiled sleeve provides positive pumping of barrier fluid. Patented shuttle slides within gland to decouple faces from gland misalignment, channel barrier fluid, and provide anti-rotation for stationary seal rings. Barrier fluid ports provide high capacity cooling....

SHAFT GLAND STUFFING BOX SB OB BOLT CIRCLE SIZE OD BORE DEPTH LENGTH BY BOLT SIZE STANDARD MATERIALS** Rotary Faces: ■ Silicon Carbide ■ Tungsten Carbide Stationary Faces: ■ Duplex Carbide™ ■ Carbon ■ Silicon Carbide ■ Tungsten Carbide All Metal Parts: ■ 316SS Springs: ■ Hastelloy C* O-Rings: ■ Fluorocarbon installed; EPR included ■ FEPM installed; No spares OPERATING LIMITS Speed Limits: ■ To 4000 fpm (20 mps) Temperature Limits: ■ To 300°F(150°C) Ethylene Propylene ■ To 400°F(205°C) Fluorocarbon, FEPM ■ To 500°F(260°C) Perfluoroelastomer Pressure Limits: ■ To 600 psig (40 bar g) * Haynes International,...

155 CAST – Dimensional Data/Inch SHAFT SIZE BOLT CIRCLE BY BOLT SIZE 155 CAST – Dimensional Data/Metric SHAFT SIZE 155 – Cast Version SB DEPTH BOLT CIRCLE BY BOLT SIZE 155 OVERSIZE – Dimensional Data/Inch SHAFT SIZE BOLT CIRCLE BY BOLT SIZE Configurations to fit your application needs CPI Gland: Quench and drain ports, plus floating throttle bushing, in a slotted, universal gland. ANSI Oversized Gland: Patented Adjustable Gland™ available for large bore seal chambers. 155A API: 155 with factory installed glands having piloting, quench, drain and floating carbon throttle bushing to meet API 610....

255 STANDARD - Dimensional Data/Inch SHAFT GLAND STUFFING BOX SB OB BOLT CIRCLE SIZE OD BORE DEPTH LENGTH BY BOLT SIZE 255 STANDARD - Dimensional Data/Metric SHAFT GLAND STUFFING BOX SB OB BOLT CIRCLE SIZE OD BORE DEPTH LENGTH BY BOLT SIZE 255 ADAPTER VERSiON - Dimensional Data/Inch SHAFT GLAND STUFFING BOX SB OB BOLT CIRCLE SIZE OD BORE DEPTH LENGTH BY BOLT SIZE

255 LARGE – Dimensional Data/Inch SHAFT SIZE BOLT CIRCLE BY BOLT SIZE 255 LARGE – Dimensional Data/Metric SHAFT SIZE BOLT CIRCLE BY BOLT SIZE 255 OVERSIZE – Dimensional Data/Inch SHAFT SIZE BOLT CIRCLE BY BOLT SIZE standard materials** Rotary Faces: n Silicon Carbide n Tungsten Carbide Stationary Faces: n Duplex Carbide™ n Carbon n Silicon Carbide n Tungsten Carbide All Metal Parts: n 316SS Springs: n Hastelloy C* O-Rings: n Fluorocarbon installed; EPR included n FEPM installed; No spares operating limits Speed Limits: n To 4000 fpm (20 mps) Temperature Limits: n To 300°F (150°C) Ethylene Propylene...

155’” Single and 255 Dual Cartridge Seals 155 Highly effective emissions control ’he advanced design of the 155 and the ability to keep faces square and flat ensures superior emissions control capability. The 155 has been proven in independent tests to meet or _ exceed the most stringent USA emissions standards. ' y Of course, for total emissions C control or hazardous fluids, use Chesterton new generation dual seals. Ancillary Products Seal Support System Mechanical seal support systems are the lifeline to dual, liquid-lubricated mechanical seals. By providing a dedicated lubrication system,...