MGZ/MBZ/MB-WA Sleeved Plug Valves – Multifunctional Industrial Solutions

Screwed plug valves / Instrumentation

thread size from ¼“ up to 2“

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SPEC SHEET
CERTIFICATE
Two stainless steel industrial valves from a valve distribution company in Louisiana on a white background, one larger with a handle for manual operation and a smaller one with an adjustment screw.
Design Features

Design Characteristics

  • available with female and male threads
  • free of cavities
  • maintenance free – self lubricating
  • vacuum tight
  • fugitive emmission resp. clean air act certified (TA – Luft 2002 approval)
  • Directive 2014/68/EU
  • FDA conformity

Standard connections:

  • tapered Whitworth pipe thread DIN 2999
  • Whitworth pipe thread DIN ISO 228
  • NPT pipe thread ANSI B 1.20.1
  • BSP British standard pipe thread
  • Ermeto EO progressive ring screwing
  • Swagelok and Gyrolok tube fitting
PT-Diagram
Line graph titled "General Pressure-Temperature Diagram" showing the relationship between temperature in Celsius and pressure in bar for various sleeve materials like PTFE and graphite, used by an industrial gasket solutions provider

Operating temperatures < -30°C and > 220 °C have to be checked and approved by AZ according to the operating conditions.

Besides the P/T value of the sleeve the limitations of the valve bodies also have to be considered. Please refer to the EN 12516-1 resp. ASME B16.34 in order to choose a proper pressure rating (PN/class). The shown values refer to austenitic stainless steel 1.4408 (A351 Gr. CF8M).

1) For operating temperatures below -10°C low temperature / austenitic steels are required.
2) Sleeve: There are different sleeve materials / compounds available.

Materials

Materials Type MGZ
• Stainless Steel 1.4408, ASTM A351 CF8M
• other materials on request

Materials Type MBZ/MB
• Special Materials Titan, Nickel, Monel, Tantal, Alloy…

Materials Type WA
• Stainless Steel 1.4408, ASTM A351 CF8M

Sealing Systems

Standard sealing for all major applications;
Tmax 230°C

Type STD

Diagram of a mechanical seal assembly, labeled with components including primary sealing type ptfe, secondary sealing with delta v-diaphragm ptfe, stainless steel diaphragm, thrust collar, and plug adjustment

Firesafe safety sealing (API 607) for fluctuating temperatures
with 3x graphite packing (adjustable) for additional
stem sealing; Tmax 280°C

Type FSN

Diagram showing the components of a firesafe sealing system for type fsn valves, including primary, secondary, and tertiary seal details with annotations on temperature adjustments. Provided by a fluid control solutions provider in Louisiana

Firesafe sealing (API 607) with graphite packing for additional
stem sealing; Tmax 230°C

Type FS

Diagram showing the components of a firesafe (API 607) type FS valve, detailing primary, secondary, and tertiary sealing mechanisms with labels for various parts like thrust collar, graphite packing, and di

Firesafe safety sealing (API 607) for fluctuating temperatures
with 3x graphite packing (live loaded disc springs) for additional
stem sealing; Tmax 280°C

Type FSN-SL

Technical diagram depicting a fire-safe safety sealing system (API 607 type FSN-SL) for fluctuating temperatures, showcasing components like thrust collar, live loaded disc springs, and various custom sealing solutions

Chemical sealing to prevent fugitive emission of aggressive and toxic media
with PTFE packing for additional stem sealing; Tmax 230°C

Type CA

Detailed image of a mechanical seal system highlighting layers: primary with stainless steel, secondary with PTFE diaphragm, and tertiary PTFE packing; provided by an industrial supply company in

Chemical safety sealing for fluctuating temperatures
with 3x PTFE packing (adjustment) for additional stem sealing;
Tmax 230°C

Type CASN

Technical diagram provided by an industrial supply company in Louisiana, showing components of a chemical safety sealing system with labeled parts, including primary, secondary, and tertiary sealing with materials noted, like ptfe and stainless

Chemical safety sealing for fluctuation temperatures
with 3x PTFE packing (live loaded disc springs) for additional
stem sealing; Tmax 230°C

Type CASN-SL

Detailed diagram of a chemical safety sealing system (type casn-sl) provided by an industrial supply company in Louisiana, featuring components like live loaded disc springs, various sealing levels with ptfe, and a
Port Forms
Close-up of a metallic plug valve with a secured position indicator. Text describes the valve having rust-proof position indicators to prevent loosening, tailored for fluid monitoring solutions.
Dimensions
Actuation

1 Locking Devices
Pilot valve combinations, pad lock eyelets, linear key conception, indexing plunger arrestor.

2 Plug stem extension
Solid construction in stainless steel with T-wrench, Standard extension 100 mm or 150 mm, non standard lengths are available on request

3 Actuators
Actuators for mounting-flange acc. to DIN ISO 5211

NEW: Pneumatic actuator AIR GEAR for plug valves with high torque ≥150.000 Nm

4 Ratched coupling
To usw on multiport valves with standard 90° actuator for bigger switchpositions than 90°

5 Cover extension
Solid construction in stainless steel, Standard extension 100 mm or 150 mm high, non standard lengths are available on request . Hexagonal bolts on adjustment ring freely accessible. Note: Don’t use with sealing FSN/FSN-SL and CASN/CASN-SL