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Optimize Replacement Parts for Shimadzu
The OPTI-MAX® Cartridge Check Valve System consists of a replaceable cartridge, plus custom designed housings for virtually all major brands of HPLC pumps. The versitile and unique system allows one replacement cartridge to fit multiple pump brands, in both inlet and outlet OPTI-MAX housings. Cartridges are available in passivated 316 stainless steel or PEEK with 1/16", 1/8", or 3/16" diameter balls and seats for various pump models. Housings come complete with cartridge. Replacement cartridges are also available.  

Opti-Max® Cartridge Check Valves  
LC-10AT LC-10ATVP  
Part # Description OEM # Price Buy
34-46-01983 OPTI-MAX Inlet Housing & Cartridge, 1/16" Ceramic Ball & Seat, SS cartridge 228-32166-91 $183.00
34-46-00893 OPTI-MAX Outlet Housing & Cartridge, 1/16" Ceramic Ball & Seat, SS cartridge 228-32531-92 $183.00
10-46-02004 OPTI-MAX Replacement Cartridges, 1/16" Ceramic Ball & Seat, SS cartridge 2/pk -- $210.00
LC-10ADVP (Also ESA Model 582)  
Part # Description OEM # Price Buy
34-46-02644 OPTI-MAX Inlet Housing & Cartridge, 1/16" Ceramic Ball & Seat, SS cartridge 228-39093-92 $183.00
34-46-00893 OPTI-MAX Outlet Housing & Cartridge, 1/16" Ceramic Ball & Seat, SS cartridge 228-34976-91 $183.00
10-46-02004 OPTI-MAX Replacement Cartridges, 1/16" Ceramic Ball & Seat, SS cart. 2/pk -- $210.00
LC-10AD, LC-600, LC-9A (also ESA Model 580)  
Part # Description OEM # Price Buy
34-46-00885 OPTI-MAX Inlet Housing & Cartridge, 1/16" Ceramic Ball & Seat, SS cartridge 228-18522-91 $183.00
34-46-00893 OPTI-MAX Outlet Housing & Cartridge, 1/16" Ceramic Ball & Seat, SS cartridge 228-18522-92 $183.00
10-46-02004 OPTI-MAX Replacement Cartridges, 1/16" Ceramic Ball & Seat, SS cartridge 2/pk -- $210.00
LC-10AS, LC-6A  
Part # Description OEM # Price Buy
34-56-00902 OPTI-MAX Inlet Housing & Cartridge, 1/8" Ceramic Ball & Seat, SS cartridge 228-12353-91 $163.00
34-56-00907 OPTI-MAX Outlet Housing & Cartridge, 1/8" Ceramic Ball & Seat, SS cartridge 228-09054-93 $163.00
10-56-02004 OPTI-MAX Replacement Cartridges, 1/16" Ceramic Ball & Seat, SS cart. 2/pk -- $189.00
LC-8A  
Part # Description OEM # Price Buy
34-66-02112 OPTI-MAX Inlet Housing & Cartridge, 3/16" Ceramic Ball & Seat, SS cartridge 228-20256-91 $193.00
10-66-02005 OPTI-MAX Replacement Cartridge, 3/16" Ceramic Ball & Seat, SS cart. 2/pk -- $225.00
34-56-00907 OPTI-MAX Outlet Housing & Cartridge, 1/8" Ceramic Ball & Seat, SS cartridge 228-09054-93 $163.00
10-56-02004 OPTI-MAX Replacement Cartridges, 1/8" Ceramic Ball & Seat, SS cart. 2/pk -- $189.00

Options: Stainless steel/ceramic OPTI-MAX Cartridges are listed above. Other materials available - contact us.

OEM-Type Check Valves  
Shimadzu LC-6A, LC-10AS  
Part # Description OEM # Price Buy
34-38-00877 Check Valve Assembly 228-12353-91 $163.00
34-38-00882 Outlet Check Valve Assembly 228-09054-93 $163.00

Seals & Pistons  
LC-6A, LC-7A, LC-10AS, LC-10AT, LC-10ATVP  
Part # Description OEM # Price Buy
34-36-00865 OPTI-SEAL UHMW-PE Piston Seal 228-21975-00 $39.00
34-36-00866 OPTI-SEAL UHMW-PE Piston Seal, 10/pk -- $360.00
34-36-00863 ITB (Improved TeflonR Blend) Piston Seal 228-11999-00 $36.00
34-36-00864 ITB (Improved TeflonR Blend) Piston Seal, 10/pk -- $335.00

Piston Wash Users: the above seals can also be used as Back Seals (OEM# 228-28499-00)
Part # Description OEM # Price Buy
34-34-00854 Sapphire Piston for LC-6A 228-12904-93 $95.00
34-34-01345 Sapphire Piston for LC-10AS 228-17019-93 $158.00
34-34-01997 Sapphire Piston for LC-10AT (Universal Piston) 228-32654-91 $210.00
34-34-02650 Sapphire Piston for LC-10ATVP 228-35009-92 $111.00
LC-10ADVP  
Part # Description OEM # Price Buy
34-36-00855 OPTI-SEAL UHMW-PE Piston Seal 228-32628-00 $53.00
34-36-00856 OPTI-SEAL UHMW-PE Piston Seal, 10/pk -- $505.00
34-34-02645 Sapphire Piston for LC-10ADVP 228-35601-91 $117.00
LC-600, LC-9A, LC-10AD (And ESA 580)  
Part # Description OEM # Price Buy
34-36-00855 OPTI-SEAL UHMW-PE Piston Seal 228-18745-00 $53.00
34-36-00856 OPTI-SEAL UHMW-PE Piston Seal, 10/pk -- $505.00
34-36-00857 UHMW-PE Elastomer Energized Seal 228-18745-00 $53.00
34-36-00858 UHMW-PE Elastomer Energized Seal, 10/pk -- $505.00
34-34-00853 Sapphire Piston 228-18523-91 $99.00

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