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Maximator® series DBBNV Double Block and Bleed Needle Valves with metal to metal seats have a high level of safety and reliability under adverse operating conditions. Double Block and Bleed Needle Valves are three stem manifold valves designed for blocking and bleeding in test and pressure monitoring applications as well as for chemical injection or drain line isolation up to 22,500 psi (1,550 bar).

Due to the standard valve packing and Vee stem design, Maximator® double block and bleed needle valves are very compact and easy to use. In addition, manifold style valves reduce the number of fittings and space required for installation.
Double Block and Bleed Needle Valves
Double Block and Bleed Needle Valves - 2
Unit of Measure
1 

Item #

Item Name

Stem Type

Tube Outer Diameter (O.D.)

Orifice Diameter

Stem in Closed Position (A)

21DBBNV4M N/A 4.882 Inch (in) Stem in Closed Position (A) Double Block and Bleed Needle Valve N/A Vee Stem N/A 1/4 in N/A 0.11 in2.7 mm N/A 4.882 in124 mm
21DBBNV4M4P N/A 4.882 Inch (in) Stem in Closed Position (A) Double Block and Bleed Needle Valve N/A Vee Stem N/A 1/4 in N/A 0.11 in2.7 mm N/A 4.882 in124 mm
21DBBNV6M N/A 4.776 Inch (in) Stem in Closed Position (A) Double Block and Bleed Needle Valve N/A Vee Stem N/A 3/8 in N/A 0.11 in2.7 mm N/A 4.776 in121.3 mm
21DBBNV6M6P N/A 4.776 Inch (in) Stem in Closed Position (A) Double Block and Bleed Needle Valve N/A Vee Stem N/A 3/8 in N/A 0.11 in2.7 mm N/A 4.776 in121.3 mm
21DBBNV9M N/A 5.646 Inch (in) Stem in Closed Position (A) Double Block and Bleed Needle Valve N/A Vee Stem N/A 9/16 in N/A 0.11 in2.7 mm N/A 5.646 in143.4 mm
21DBBNV9M8P N/A 5.646 Inch (in) Stem in Closed Position (A) Double Block and Bleed Needle Valve N/A Vee Stem N/A 9/16 in N/A 0.11 in2.7 mm N/A 5.646 in143.4 mm
21DBBNV9H4M N/A 5.646 Inch (in) Stem in Closed Position (A) Double Block and Bleed Needle Valve N/A Vee Stem N/A 9/16 in N/A 0.11 in2.7 mm N/A 5.646 in143.4 mm
Unit of Measure
1