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ARI-STEVI 12.405 Pneumatic On-Off Control Valve PN16 DN20

Original price was: €1,884.54.Current price is: €848.04.

The ARI-STEVI 12.405 is a pneumatic on-off control valve with a DN20 bore and PN16 rating. It handles steam, thermal oil and high-temperature lines with a maintenance-free stem seal.

Availability: In stock

SKU: 0800739000410510010030205 Category: Brand:
Industrial Valves / Flow Automation

ARI-STEVI 12.405 Pneumatic On-Off Control Valve PN16 DN20

Reliable automatic shut-off performance for high-temperature and high-pressure industrial flow control.

The ARI-STEVI 12.405 Pneumatic On-Off Control Valve takes charge of fluid management safely in industrial plants. In addition, its DN20 bore and PN16 pressure class deliver outstanding performance on thermal oil, steam and high-temperature lines. In particular, the ARI-DP diaphragm actuator converts the air signal into immediate physical movement for fast opening and closing.

The EN-JL1040 cast iron body therefore provides stability even under extreme conditions up to 300 °C. Moreover, sealing quality is assured by a PTFE V-ring and AISI 420 stainless steel internal parts. As a result, the DIN EN 12266 Class A leakage rate makes this valve a fully reliable barrier.

ARI-STEVI 12.405 Pneumatic On-Off Control Valve — Technical Specifications

Model / Figure No
Fig. 12.405
Nominal Diameter (DN)
DN20
Pressure Class
PN16
Flow Coefficient (Kvs Value)
7.4 m³/h
Stroke / Seat Diameter / Differential Pressure
5 mm / Ø 21 mm / 2 bar
Body Material
EN-JL1040 Cast Iron (GG-25)
Bonnet Material
EN-JS1049 Ductile Iron
Stem, Plug and Seat Surface
AISI 420 (1.4021+QT) Stainless Steel
Valve Stem Seal
PTFE V-Ring (Spring-Loaded, Maintenance-Free)
Maximum Operating Temperature
300 °C (with Graphite Packing Option)

This valve plays a critical role in steam and condensate system automation. Furthermore, it is used safely in chemical, petrochemical and textile production lines. In this context, it is ideal for sterile flow management in food and pharmaceutical plants. Moreover, it is preferred in HVAC systems and power plants, and it also provides an effective solution in water treatment and distribution facilities.

Key Advantages

  • Compact body design allows easy installation and saves space in tight areas.
  • The PTFE V-ring system requires no maintenance and provides long-lasting sealing.
  • The replaceable trim structure adapts easily to different processes.

Applications

  • Automatic flow control in steam and condensate systems.
  • Process safety in chemical, petrochemical and textile production lines.
  • Precise temperature management in power plants and HVAC systems.

In conclusion, the ARI-STEVI 12.405 Pneumatic On-Off Control Valve delivers a reliable and efficient flow solution for industrial facilities. ORFA Industrial supplies worldwide and provides technical support backed by quality products and expert assistance since 1985. For more information and a price quote, consult our expert team.

ORFA INDUSTRIAL PRODUCTS INDUSTRY AND TRADE INC.

Your Reliable Partner in Industrial Flow Technologies

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