ISO FSN-HF Acid Service Valve – Two-Way Plug Valve for Harsh Conditions

Two way plug valve with safety stuffingbox packing, special design for HF alkylation, Monel materials

Type ISO-FS-HF with Fire Safe sealing
Type ISO FSN-HF with  triple safety sealing for fluctuating temperatures

ASME: NPS ½“ – 24“ / class 300
PT range: -29 < T < 220°C

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CERTIFICATE
A ball valve from a fluid control solutions provider in Louisiana featuring a metallic body and a lever handle, attached to a yellow flanged pipe fitting against a neutral background.
Design Features

Design Characteristics

  • safety stem packing
  • easily accessible plug adjustment
  • UOP approved design for HF Alkylation
  • free of cavities
  • maintenance free / self lubricating
  • HF detection coat for leakage indentification
  • actuator mounting flange acc. to DIN ISO 5211

Approved for the highest HF Alkylation UOP Process Specifications

  • AZ HF plug valves are specially designed for the use in any HF Alkylation processe and hydrofluoric acid applications
  • design and material requirements as well as manufacturing and testing procedures are in accordance to the UOP process and piping specifications HF1, HF10, HF2 and HF20
PT-Diagramm
A pressure-temperature diagram labeled in Celsius and bar, showing a curve for class 300 that decreases with increasing temperature from -40 to 280 degrees Celsius, ideal for custom sealing solutions in Baton Rouge

Operating temperatures < -29°C and > 220 °C have to be checked and approved by AZ according to the operating conditions.

Materials

Standard body material

  • Monel, ASTM A494 M35.1

Standard plug material

  • Monel, ASTM A494 M35

Standard cover material

  • ASTM A216 / WCB (Monel, ASTM A494 M35.1 on request)
Sealing Systems

Type FS-HF

Illustration of a firesafe sealing mechanism (API 607 type FS-HF) highlighting its components such as graphite sleeves and monel diaphragm in a sectional view of a valve, designed by

Firesafe sealing (API 607) with graphite packing for additional stem sealing; Tmax 220°C

Type FSN-HF

Illustration of a firesafe safety sealing mechanism, showing a sectional view labeled with components like primary, secondary, and tertiary sealing systems by an industrial supply company in Louisiana. The design is suited for fluct

Firesafe safety sealing (API 607) for fluctuating temperatures
with 3x graphite packing (adjustable) for additional
stem sealing, Tmax 220°C

Port Forms
Illustration of a timeline showing four stages of a scientific process with icons: first with a happy face, second to fourth with increasingly complex molecular structures, tailored for fluid monitoring solutions, labeled from "form

Fully vented Plug (FVP) prevent possibility of pressure build-up due to thermal expansion

  • vented plug buttom
  • vented plug side
Dimensions

Type ISO-FS-HF

Technical drawing of an az iso-tier actuator bracket with dimensions, part numbers, and specifications listed for various models. This includes detailed views and measures for multiple orientations and configurations. Ideal for custom sealing solutions

Type ISO-FSN-HF

Technical blueprint of an industrial console provided by a fluid control solutions provider in Louisiana, featuring multiple detailed views and component diagrams with associated measurement tables and reference numbers.

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

Diagram illustrating the assembly of industrial valves with components labeled, including switch boxes, stem extensions, actuators, and custom sealing solutions, connected by lines showing relationships.