Home > Products > Specialty Products >  Type D Mechanical Seals

DAR stocks variety of single spring seals for pumps and compressors. Choose from the list below for a seal that fits your application.   

Type D

Mechanical Seals


These stainless steel mechanical face seals, also known as pump shat seals or mechanical shaft seals, are designed for OEM and replacement parts on chemical and fertilizer pumps, trash pumps, pressure booster pumps, straight centrifugal pumps, sump pumps and home water systems. The seal components are locked together by a crimped outer shell, providing a unitized construction for the diaphragm and drive gasket. This prevents reverse thrusts from dislodging the seal components. This mechanical lock eliminates the need for adhesives, thereby eliminating leaks between the seal ring and the diaphragm. All springs and spring retainers are 304 stainless steel. all other parts are type 304 stainless steel unless otherwise noted.  

Specifications:
  • Buna-n = -40F to 200F
  • Viton = -15F to 390F
  • Pressure Unbalanced = 150psi
  • 5000 ft / min.
Similar To:
  • Pac Seal Type 52
  • John Crane Type 2
  • Sealol Type 43 CE Short & type 43 BE
  • Burgmann M2, M3, M377
Applications:
  • Petrochemical Pumps
  • Petrochemical Compressors
  • Chemical Pumps
  • Waste Water Pumps
  • Marine Slurry Pumps
Industry Standard Number Shaft Size (Inch) Seal Size (Dia. Inch) Working L (Inch) Seat Bore (inch) Seat Thickness (Inch)  Diaphragm Material Washer Material  Seat Material
750 .750" 1.266" .875" 1.375" .406" Buna-n Carbon Ceramic
703 .875" 1.359" .937" 1.500" .406" Buna-n Carbon Ceramic
380 1.000" 1.575" 1.062" 1.625" .437" Buna-n Carbon Ceramic
604 1.125" 1.656" 1.062" 1.750" .437" Buna-n Carbon Ceramic
383 1.125" 1.734" 1.062" 1.875" .437" Buna-n Carbon Ni-resist
381 1.250" 1.875" 1.062" 1.875" .437" Buna-n Carbon Ceramic
491 1.375" 1.859" 1.125" 2.000" .437" Buna-n Carbon Ceramic
382 1.500" 2.062" 1.125" 2.125" .437" Buna-n Carbon Ceramic
514 1.625" 2.375" 1.375" 2.375" .500" Buna-n Carbon Ceramic
237 1.750" 2.359" 1.375" 2.500" .500" Buna-n Carbon Ceramic
445 2.000" 2.625" 1.500" 2.750" .500" Buna-n Carbon Ceramic
DAR Home Products Get A Quote Contact Us Site Map
DAR Industrial Products, Inc. 2006 All rights reserved