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

Type A

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 = -40°F to 200°F
  • Viton = -15°F to 390°F
  • Pressure Unbalanced = 150psi
  • 5000 ft / min.
 Similar To:
  • Pac Seal Type 16
  • John Crane Type 6
  • Sealol Type 6
 Applications:
  • Well Pumps
  • Sump Pumps
  • Spa Pumps
  • Swimming Pool Pumps
  • Other Small Shaft 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
511 .375" .917" .625" .875" .218" Buna-n Phenolic Ni-resist
162 .500" .917" .656" 1.000" .312" Buna-n Phenolic Ceramic
200E .625" 1.185" .718" 1.250" .406" FDA EPDM Carbon Ceramic
100 .625" 1.185" .718" 1.187" .343" Buna-n Phenolic Ceramic
200 .625" 1.185" .718" 1.250" .406" Buna-n Phenolic Ceramic
200v .625" 1.185" .718" 1.250" .406" Viton Carbon Ceramic
501 .625" 1.185" .812" 1.250" .406" Buna-n Phenolic Ceramic
101 .750" 1.300" .812" 1.437" .406" Buna-n Phenolic Ceramic
201 .750" 1.300" .718" 1.375" .406" Buna-n Phenolic Ceramic
201V .750" 1.300" .718" 1.375" .406" Viton Carbon Ceramic
201E .750" 1.300" .718" 1.375" .406" FDA EPDM Carbon Ceramic
360 1.000" 1.552" .812" 1.625" .437" Buna-n Phenolic Ceramic
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