Screwed plug valves / Instrumentation

thread size from ¼“ up to 2“

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Screwed plug valves Instrumentation

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

PT-Diagramm-2015-GB

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

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

Type FSN

read more [...]
Firesafe sealing (API 607) with graphite packing for additional
stem sealing; Tmax 230°C

Type FS

read more [...]		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

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

Type CA

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

Type CASN

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

Type CASN-SL

read more [...]

Port Forms

position_indicator

Kuekenform-F2-D_T4

Kuekenform-F3-S-W

Kuekenform-F4Kuekenform-F4S-F5

Dimensions

Techn-Daten-Muffenhahn-GB-MGZ-MBZ-MB-WA
Techn-Daten-Muffenhahn-GB-MGZ-MBZ-MB-WA-1
Techn-Daten-Muffenhahn--GB-MGZ-MBZ-MB-WA-2

Actuation

actuation-valves-met

1 Locking Devices
Pilot valve combinations, pad lock eyelets, linear key conception, indexing plunger arrestor.
read more […]

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
read more […]

3 Actuators
Actuators for mounting-flange acc. to DIN ISO 5211
read more […]

NEW: Pneumatic actuator AIR GEAR for plug valves with high torque ≥150.000 Nm
read more […]

4 Ratched coupling
To usw on multiport valves with standard 90° actuator for bigger switchpositions than 90°
read more […]

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
read more […]