Double Block & Bleed Manifolds

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• Product Code: Double Block & Bleed Manifolds

Double Block and Bleed Valves

Ball Valve  - Double Block & Bleed, 1/4 Turn

3/8" & 5/8" Bore to 15,000 psi (1034 bar), 6DB and 10DB Series

Parker Autoclave Engineers Double Block & Bleed valve is a two-stem ball valve with needle style vent valve providing economical and reliable isolation in critical areas superior in comparison to a standard, single valve. This valve is designed for use where critical isolation is needed to ensure that leakage does not occur. Our 3/8" and 5/8" Double Block & Bleed valves are designed to save space and weight while capable of pressures to 15,000 psi (1034 bar). These ball valves can also be modified to incorporate the use of special materials, optional seals with and capability for high temperature applications to 500°F (260°C).

Double Block & Bleed Ball Valve Features:

•One-piece, trunnion mounted style, stem design eliminates shear failure and reduces the effects of side loading found in two piece designs

•Re-torqueable seat glands for longer seat life

•Carbon filled PEEK seats offer excellent resistance to chemicals, heat, and wear/abrasion

•Vee-Stem Needle Vent Valve with PTFE Packing

•Full-port flow path minimizes pressure drop

•316 cold worked stainless steel construction

•Low friction pressure assisted graphite filled PTFE stem seal increases cycle life and reduces operating torque

•FKM o-rings for operation from 0° to 400°F (-18 to 204°C)

Traceability is ensured by use of heat and purchase order codes etched on valve body that also includes model number, MAWP rating, and material type references.

Needle Valve

Manifold Block and Bleed

MVBB, 20DBNV, Wellhead Gauge & Bleed/Vent Valves,

Pressure to 30,000 psi (2070 bar)

Parker Autoclave Engineers Manifold Valves are available in compact Single and Double Block & Bleed manifold designs using Cone & Thread style and NPT connections. Designed for a maximum of 30,000 psi MAWP using high tensile strength UNS S31600/S31603 cold worked 316/316L Stainless Steel material as standard.

MVBB Single Block & Bleed Manifold Valve Features:

•MVBB Series valve design provides large valve performance in a small package

•Tubing sizes: 1/4" and 3/8" Pipe Size: 1/2" NPT

•Single Block & Bleed design

DBNV Double Block & Bleed Manifold Valve Features:

•Connection specific Non-Rotating Vee Stems matching material selection, (Rotating Stem Vent valve)

•Tubing Sizes from 1/4" to 3/4" Medium Pressure and 9/16" High Pressure (API Type III Connection)

•-423° to 1000°F (-252° to 540°C) Temperature Range

GV Series Wellhead Gauge Valve Features:

•One Inlet, 3 Outlet ports, standard using 9/16" HP (API Type III connection), other sizes available

•30,000 psi MAWP capable, 20,000 psi MAWP NACE capable

•Use with BV Series Bleed Valve (below) in any outlet port to create Block and Bleed valve

BV Series Bleed/Vent Valve Features:

•3/8" and 9/16" connections to match GV Series Gauge Valves above (API type III connection available)

•Vent port tapped (1/8" NPT) for plumbing to safe area

•Vent Valve can be rated to 30,000 psi in closed position, 15,000 psi in open position.

All Parker Autoclave Engineers products are designed in accordance with ASME B31.3 Chapter IX High Pressure Piping standards.

Markets:

• Oil and Gas

• Petrochemical

• Chemical

Applications:

• Calibrating Transmitters

• Gauge Testing

• Pressure Monitoring and Test

• Chemical Injection