Big Bear Instruments offers Block & Bleed Needle Valves in both hard seat and soft seat options. The block valve isolates the downstream process fluids, and the bleed valve exhausts upstream fluids, enabling instruments to be removed without disturbing the permanent piping installation. Sort by manufacturer, series, connection, body material, or item type to find the best valve for your application.
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602-MFC
Seat: Hard Seat Connection: 1/4" NPT Type: Male-Female Valve Material: Steel
602-MFS
Seat: Hard Seat Connection: 1/4" NPT Type: Male-Female Valve Material: Stainless Steel
604-FFC
Seat: Hard Seat Connection: 1/2" NPT Type: Female-Female Valve Material: Steel
604-FFS
Seat: Hard Seat Connection: 1/2" NPT Type: Female-Female Valve Material: Stainless Steel
604-MFC
Seat: Hard Seat Connection: 1/2" NPT Type: Male-Female Valve Material: Steel
604-MFS
Seat: Hard Seat Connection: 1/2" NPT Type: Male-Female Valve Material: Stainless Steel
702-FFC
Seat: Soft Seat Connection: 1/4" NPT Type: Female-Female Valve Material: Steel
702-FFS
Seat: Soft Seat Connection: 1/4" NPT Type: Female-Female Valve Material: Stainless Steel
702-MFC
Seat: Soft Seat Connection: 1/4" NPT Type: Male-Female Valve Material: Steel
702-MFS
Seat: Soft Seat Connection: 1/4" NPT Type: Male-Female Valve Material: Stainless Steel
704-FFC
Seat: Soft Seat Connection: 1/2" NPT Type: Female-Female Valve Material: Steel
704-FFS
Seat: Soft Seat Connection: 1/2" NPT Type: Female-Female Valve Material: Stainless Steel
704-MFC
Seat: Soft Seat Connection: 1/2" NPT Type: Male-Female Valve Material: Steel
704-MFS
Seat: Soft Seat Connection: 1/2" NPT Type: Male-Female Valve Material: Stainless Steel
802-MB
Seat: Hard Seat Connection: 1/4" NPT Male Valve Material: Brass
802-MC
Seat: Hard Seat Connection: 1/4" NPT Male Valve Material: Steel
802-MS
Seat: Hard Seat Connection: 1/4" NPT Male Valve Material: Stainless Steel
804-MC
Seat: Hard Seat Connection: 1/2" NPT Male Valve Material: Steel
804-MS
Seat: Hard Seat Connection: 1/2" NPT Male Valve Material: Stainless Steel
852-MC
Seat: Soft Tip Connection: 1/4" NPT Male Valve Material: Steel