Needle Valve Manifold Block and Bleed MVBB, Wellhead Gauge & Bleed/Vent Valves

 Principle of Operation

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 cold worked 316 Stainless Steel material as standard.

Ordering Guide

For complete information on available stem types, optional connections and additional valve options, see the Needle Valve Options section or contact your Sales Representative or contact us for further clarification. VRMM Series valves are furnished complete with connection components unless otherwise specified.

A - Valve Series
20MVBB: 20,000 psi Mini MVBB Block & Bleed Valve
15MVBB: 15,000 psi Mini MVBB Block & Bleed Valves

B - Tubing OD or Pipe Size
#: 1/4” MP (20MVBB option only)
6: 3/8” MP (20MVBB option only)
P8: 1/2" Pipe NPT only (only applicable for 15MVBB Valve Series)

E - Options (Multiple Options can be chosen)
TG: PTFE Glass (25%) Packing (to 650°F)
B: Low Temperature service required below 0°F (-18°C)
K: Antivibration Gland (replaces standard gland)
*SOG: NACE Material, Hardness Verification/Certificate
**2507: UNS 32750, 2507 Super Duplex Wetted Materials
***IN625: UNS N06625 Inconel 625 Wetted Materials

Notes:
# For 1/4” MP (typically 4 code) option leave part code blank. ie; 20MVBB
316 SS valve bodies are cold worked and not suitable for use in NACE (ISO 15156)
applications. If required, contact factory for options.
* SOG suffix also changes CW 316 SS Body material to Annealed 316 SS suitable
for NACE service, Pressure reduction of 60% possible
*** Special Materials often have reduced MAWP ratings, see Technical brochure for
assistance and for additional material options

For more details see tha full PDF table here

Valve Packing Options

Standard Parker Autoclave Engineers valves with PTFE packing may be operated to 450°F (232°C).
For additional temperatures, see options below and include suffix code in part number of valve selected:
TG: Standard valve with PTFE-Glass packing -100° to 650°F (-70 to 340°C)
B: Cryogenic trim materials and PTFE packing required when below 0°F to -100°F (-73°C)

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
• UNS S31600, CW 316 Stainless Steel body construction as standard. Additional Material options including NACE approved (SOG) materials are available.
• Rising stem/barstock body design
•  Metal-to-metal seating achieves bubble-tight shut-off, longer stem/seat life in abrasive flow, greater durability for repeated on/off cycles and excellent corrosion resistance
• PTFE Glass packing provides dependable stem and body sealing with temperatures from -100° to 650°F (-70° to 340°C)
• Stem and packing gland design have been selected to achieve extended thread cycle life and reduced handle torque

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.