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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2170-EMFS
Process: 2-Valve Block & Bleed Seat: Soft Seat Connection: 1/2" Type: Extended Male-Female Valve Material: Stainless Steel
2170-FMC
Process: 2-Valve Block & Bleed Seat: Soft Seat Connection: 1/2" Type: Female-Male Valve Material: Steel
2170-FMS
Process: 2-Valve Block & Bleed Seat: Soft Seat Connection: 1/2" Type: Female-Male Valve Material: Stainless Steel
2170-MFC
Process: 2-Valve Block & Bleed Seat: Soft Seat Connection: 1/2" Type: Male-Female Valve Material: Steel
2170-MFS
Process: 2-Valve Block & Bleed Seat: Soft Seat Connection: 1/2" Type: Male-Female Valve Material: Stainless Steel
2170-MMS
Process: 2-Valve Block & Bleed Seat: Soft Seat Connection: 1/2" Type: Male-Male Valve Material: Stainless Steel
2172-MFC
Process: 2-Valve Block & Bleed Seat: Soft Seat Connection: 1/4" Type: Male-Female Valve Material: Steel
2172-MFS
Process: 2-Valve Block & Bleed Seat: Soft Seat Connection: 1/4" Type: Male-Female Valve Material: Stainless Steel
304-MFC
Seat: Soft Seat Connection: 1/2" Type: Male-Female Valve Material: Steel
304-MFS
Seat: Soft Seat Connection: 1/2" Type: Male-Female Valve Material: Stainless Steel
30604-MFC
Seat: Soft Seat Connection: 3/4" x 1/2" Type: Male-Female Valve Material: Steel
30604-MFS
Seat: Soft Seat Connection: 3/4" x 1/2" Type: Male-Female Valve Material: Stainless Steel
3070-FMS
Seat: Hard Seat Connection: 1/2" Type: Female-Male Valve Material: Stainless Steel
3070-MFC
Seat: Hard Seat Connection: 1/2" Type: Male-Female Valve Material: Carbon Steel
3070-MFS
Seat: Hard Seat Connection: 1/2" Type: Male-Female Valve Material: Stainless Steel
3072-MFC
Seat: Hard Seat Connection: 1/4" Type: Male-Female Valve Material: Carbon Steel
3072-MFS
Seat: Hard Seat Connection: 1/4" Type: Male-Female Valve Material: Stainless Steel
602-FFC
Seat: Hard Seat Connection: 1/4" NPT Type: Female-Female Valve Material: Steel
602-FFS
Seat: Hard Seat Connection: 1/4" NPT Type: Female-Female Valve Material: Stainless Steel