MG2018-01-22T14:17:48+00:00

Screwed plug valve

Cast design, thread size ½“ – 3“

Spec Sheet
Certificate
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Design Features

Design Characteristics

  • available with female and male threads
  • free of cavities
  • maintenance free – self lubricating
  • mounting-flange for actuators acc. to DIN ISO 5211
  • easy accessible adjustment of the plug, even with mounted actuator
  • vacuum tight
  • fugitive emmission resp. clean air act certified  (TA – Luft 2002 approval)
  • Directive 2014/68/EU
  • fire safe design API 607 / ISO 10497
  • 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

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

Standard body materials
• Carbon Steel 1.0619, ASTM A216 WCB
• Stainless Steel 1.4408, ASTM A351 CF8M
• Stainless Steel 1.4308, ASTM A351 CF8
• Unalloyed stainless steel casting (low Temp.) 1.1138, LCC/LCB/A352

Standard plug materials
• Stainless Steel 1.4408, ASTM A351 CF8M
• Stainless Steel 1.4308, ASTM A351 CF8

Special materials
• Alloy
• Monel
• Nickel
• Zirconium
• Titan
• Tantal
• other materials on request

Sealing Systems

Standard sealing for all major applications;
Tmax 230°C

Type STD

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

Type FSN

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

Type FS

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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

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

Type CA

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

Type CASN

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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-F4S-F5

Technische Daten

Techn-Daten-Muffenhahn-MG-1

Techn-Daten-Muffenhahn-MG-2

*) only for tow way valves M2, enlarge

size on request

up to R 1″ lever with ball

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
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