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SKU: JY50130Y $62.50Superior Seal! JY NMR Valve Only J Young Valves without tubes for glassblowing Serving the Glassblowing Industry for over 60 years! Wale is now the USA distributor of the J Young valves/Stopcocks Manufactured by GPE Scientific Limited. J Young high quality vacuum greaseless stopcocks incorporate three O-ring Seals on a standard PTFE piston. This guarantees a vacuum of 10 -6 Torr. Under normal conditions thousands of hours use can be expected as wear can only occur to the O-rings which are easily replaced. Cleaning is no problem as all surfaces are glazed: therefore a grease free system is obtained needing the simplest management! Note: The PTFE used complies with the requirements of FDA 21 CFR 1777.1550 and USP class VI and is free from animal components BSE/TSE (pdf)
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