Analyical Scientific Instruments

Other Manufacturers

ASI Self-priming Check Valves

Bischoff 2200/2250, Alcott 760/765

Description OEM Part Number ASI Part Number
Inlet Check Valve
(Cartridge & Housing)
2200-0220 250-1950*
Inlet Cartridge   250-1930*
Inlet Housing   250-1940
Outlet Check Valve
(Cartridge & Housing)
2200-0230 250-1955*
Outlet Cartridge   250-1935*
Outlet Housing   250-1945

Chrompack CP 5000

Description OEM Part Number ASI Part Number
Inlet Check Valve
(Cartridge & Housing)
  250-1210*
Inlet Cartridge   250-1190*
Inlet Housing   250-1200
Outlet Check Valve
(Cartridge & Housing)
  250-1217*
Outlet Cartridge   250-1197*
Outlet Housing   250-1207*

Dionex P-580, P-680

Description OEM Part Number ASI Part Number
Inlet Check Valve
(Cartridge & Housing)
  250-1440*
Inlet Cartridge   250-1420*
Inlet Housing   250-1430
Outlet Check Valve
(Cartridge & Housing)
  250-1445*
Outlet Cartridge   250-1425*
Outlet Housing   250-1435
Replacement Filter 5/Pack   250-1220
* If you wish to specify ceramic ball & seat, add a "C" to end of part number.

ESA Model 580, 582

Description OEM Part Number ASI Part Number
Inlet Check Valve
(Cartridge & Housing)
  250-1481*
Inlet Cartridge   250-1461*
Inlet Housing   250-1471
Outlet Check Valve
(Cartridge & Housing)
  250-1486*
Outlet Cartridge   250-1466*
Outlet Housing   250-1476

Knauer K-1001, K-120, K-501, K-500, S-1000

Description OEM Part Number ASI Part Number
Inlet/Outlet Cartridge A0684 250-0260*

TELEDYNE ISCO

Description OEM Part Number ASI Part Number
Swagelok Inlet Check Valve
(Cartridge & Housing)
309-0090-12 250-0590KC
Swagelok Outlet Check Valve
(Cartridge & Housing)
309-0090-13 250-0595KC
Swagelok Inlet/Outlet Cartridge 309-0090-11 & 60-3985-044 250-0570KC
Inlet/Outlet Cartridge, Vari Pump 209-0093-34 & 60-5055-005 250-0570KC
Inlet/Outlet Cartridge
Analytical, SST
69-2253-321 250-1960*
Inlet/Outlet Cartridge
Analytical Inert, Titanium
69-2253-322 250-1960T*
* If you wish to specify ceramic ball & seat, add a "C" to end of part number.

ASI Replacement Piston Seals

Dionex P-580, P-680

Description OEM Part Number ASI Part Number Material
Piston Seal   200-1300 UHMW-PE
Piston Seal 10/Pack   200-1305 UHMW-PE

Chrompack CP 5000

Description OEM Part Number ASI Part Number Material
Piston Seal   200-1210 UHMW-PE
Piston Seal 10/Pack   200-1215 UHMW-PE
Piston Seal   200-1211 Teflon
Piston Seal 10/Pack   200-1212 Teflon
Piston Seal   200-1218 UHMW-PE
Piston Seal 10/Pack   200-1219 UHMW-PE

EAS Model 580, 582

Description OEM Part Number ASI Part Number Material
Piston Seal 228-18745-00 & 228-35146-00 200-1420 Teflon
Piston Seal 10/Pack   200-1425 Teflon
Piston Seal 228-21975-91 200-1430 UHMW-PE
Piston Seal 10/Pack   200-1435 UHMW-PE

Knauer K-1001, K-120, K-501, K-500, S-1000

Description OEM Part Number ASI Part Number Material
Piston Seal   200-0180 Teflon
Piston Seal 10/Pack   200-0185 Teflon
Piston Seal   200-0181 Teflon
Piston Seal 10/Pack   200-0186 Teflon
Replacement Kit
Piston Seal 200-0180
Wash Seal 200-0181
O-Ring 2 each included
  200-0182 Teflon

ASI Replacement Pistons

Chrompack CP 5000

Description OEM Part Number ASI Part Number Material
Piston   260-1100 Sapphire Rod

EAS Model 580, 582

Description OEM Part Number ASI Part Number Material
Piston   260-1303 Sapphire Rod