SMSC 1SV — Single Cartridge Mechanical Seal (ANSI)
Our SMSC 1SV cartridge mechanical seal is a single cartridge seal built on an ANSI footprint, assembled in-house using high-quality components sourced domestically and internationally. It’s designed to deliver reliable performance and strong value across demanding industrial services, while staying easy to maintain and simple to stock.
Choose size from dropdown menu above: 1″ to 2-7/8″
At a glance:
-
Style: Single cartridge, stationary design (excellent for high-speed applications)
-
Sizes: 1″ to 2-7/8″ (ANSI) (For larger sizes, see our SMSC 1SV Large 3″–4″)
-
Flush: 1 × 3/8″ NPT flush port standard for enhanced cooling and longer seal life
-
Axial length: Short inboard length to simplify installation and reduce overhang
-
Standard materials: Silicon carbide / silicon carbide (SiC/SiC) faces, FKM, 304 stainless steel
Check out Seal House Cartridge Seal Installation Guide for installation guidance.
Why it lasts:
-
Monolithic seal faces maximize face stability in higher pressure / higher temperature duty to extend service life
-
Large-area seal-face drive helps minimize face damage in stop/start and viscous services
-
Slotted anti-rotation gland with a wider rounded slot improves durability under frequent cycling
-
Hydraulically balanced faces reduce heat generation and power consumption
-
Non-shaft-fretting sleeve elastomer plus positive set-screw drive protect the shaft and ensure secure torque transmission
-
Multiple springs provide even face loading with maximum axial movement compensation
Need help sizing or selecting materials? Contact us with your pump model and service details—we’ll spec the best 1SV build for your duty.
