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SEW Ahlstar
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Catalog excerpts

SEW Ahlstar - 2

Safeseal SE1 Simple design, good technical solutions Typical applications Safeseal SE1 is a special seal designed for clean and lubricating fluids such as water, different types of oils, solvents, and stock (consistency ≤ 2%). It is typically used in pumps in paper and board mills as well as in power plants. The SE1 seal is designed especially for the Sulzer APP and APT pump series. 2. Spring located in the stationary body of the seal Shaft misalignment does not pump up the spring or wear out the O-ring. The SE1 seal is easy to install and maintain. In spite of its simple design, SE1 is...

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SEW Ahlstar - 3

Technical specifications Stuffing box pressure max. 15 bar (215 psi) Speed max. 20 m/s (65 ft/s) Temperature max. 120 °C (250 °F) Materials Seal faces O-rings Metal parts Springs SiC/Carbon or SiC/SiC EPDM PTFE Viton® Standard material AISI 329 (Titanium, UHB) Nimonic steel Technical specifications Stuffing box pressure max. 15 bar (215 psi) Speed max. 20 m/s (65 ft/s) Temperature max. 150 °C (300 °F) Materials Seal faces O-rings Metal parts Springs SiC/Carbon or SiC/SiC EPDM PTFE Viton® Standard material AISI 329 (Titanium, UHB) Nimonic steel 2–15 bar 0.5–3 l/min Technical specifications...

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SEW Ahlstar - 4

Mechanical Sealing Systems SE Seal Identification Codes E.g. SE1: single seal SEW: quench wash seal SE2: double seal 2 Shaft diameter: (mm, in) 3 Material codes X1 Q-SiC/SiC G-SiC/carbon T-TC/TC X2 R-AISI 316/329 T-titanium U-UHB 904 L X3 M-PTFE E-EPDM V-Viton® X4 O- single seal N-TC/carbon G-SiC/carbon V- V-ring (quench) 4 Design number P1= tailor made for APP pumps with four bolts AP= new seal version John Crane has a comprehensive network of highly trained representatives, distributors, and installation and maintenance personnel. Contact your local John Crane sales office for more...

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