Gilson/Rainin

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Gilson/Rainin

ASI Check Valves are a High Performance Upgrade for Your Gilson/Rainin Pump

Replacement Check Valves

Self-priming With the ASI valve, priming is easy. Open the pump outlet and turn on the pump. Your pump will prime itself, even if the head and intake lines are completely dry. You won't need to use a syringe or draw-off valve to prime your pump.

Rugged Construction The valve will not crush, crack, or leak due to high pressure. We designed the ASI cartridge so that loads are transmitted through the valve casing rather than the seat, as in conventional designs.

Convenient and Economical Cartridge Design When it's time for routine maintenance, you only need to replace the cartridge, not the entire assembly. The ASI cartridge costs no more than most conventional valve rebuild kits, and you won't spend time chasing ruby balls all over the lab bench.

Pre-tested Every ASI valve is tested prior to shipping to ensure it passes a stringent set of performance specifications.

Click here for more information about ASI check valves.

Replacement Piston Seals and Pistons

ASI pump seals and pistons have been developed to reduce pump downtime. Our UHMW-PE piston seal material is compounded with other proprietary polymers to provide lower friction and better solvent resistance than pure UHMW-PE. It generally provides much longer service life than Teflon and generates less wear material, and we recommend it for most applications. Our Teflon piston seal has a proprietary additive to increase resistance to cold flow, and improve wear characteristics. Teflon is inert to any HPLC mobile phase.

Click here for a detailed guide to selecting the best material.

ASI Self-priming Check Valves

Gilson/Rainin 5S/SC, 10S/SC

Description OEM Part Number ASI Part Number
Inlet Check Valve
(Cartridge & Housing)
Gilson: 3645242
Rainin: E50131 &
             R007101615
250-1380*
Inlet Cartridge   250-1360*
Inlet Housing   250-1370
Outlet Check Value
(Cartridge & Housing)
Gilson: 3645245
Rainin: E50121 &
             R007101617
250-1385*
Outlet Cartridge   250-1365*
Outlet Housing   250-1375
Replacement Filter 5/Pack   250-1220

Gilson/Rainin 25SC

Description OEM Part Number ASI Part Number
Inlet Check Valve
(Cartridge & Housing)
Gilson: 3645242
Rainin: E50131 &
             R007101615
250-1381*
Inlet Cartridge   250-1361*
Inlet Housing   250-1371
Outlet Check Value
(Cartridge & Housing)
Gilson: 3645245
Rainin: E50121 &
             R007101617
250-1386*
Outlet Cartridge   250-1366*
Outlet Housing   250-1376
Replacement Filter 5/Pack   250-1220

* Our standard ball & seat is sapphire & ruby. If you wish to specify ceramic ball & seat, add a "C" to end of part number.

ASI Replacement Piston Seals

Gilson/Rainin 5S/SC

Description OEM Part Number ASI Part Number Material
Piston Seal Gilson: 5463088863
Rainin: R007101634
200-1225 UHMW-PE
Piston Seal 10/Pack   200-1226 UHMW-PE

Gilson/Rainin 10S/SC

Description OEM Part Number ASI Part Number Material
Piston Seal Gilson: 5463125895
Rainin: R007101637
200-1220 UHMW-PE
Piston Seal 10/Pack   200-1221 UHMW-PE

Gilson/Rainin 25SC

Description OEM Part Number ASI Part Number Material
Piston Seal Gilson: 5463125895
Rainin: R007101637
200-1222 UHMW-PE
Piston Seal 10/Pack   200-1223 UHMW-PE

ASI Replacement Pistons

Gilson/Rainin 5SC

Description OEM Part Number ASI Part Number Material
Piston Gilson: 3650008
Rainin: R007101657
260-1195 Sapphire Rod

Gilson/Rainin 10SC

Description OEM Part Number ASI Part Number Material
Piston Gilson: 3650009
Rainin: R007101658
260-1190 Sapphire Rod

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