ORFA Industrial

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ARI-STEVI 12.405 Pneumatic On-Off Control Valve PN16 DN40

Original price was: $2,492.64.Current price is: $1,121.69.

Automated shutoff valve with ARI-DP diaphragm actuator for steam, hot oil and condensate service. Cast iron EN-JL1040 body, stainless steel trim and PTFE V-ring packing ensure reliable sealing up to 300°C. Compact and maintenance-friendly for medium pipeline sizes.

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SKU: 708A030100705 Category: Brand:
Industrial Valve / Process Automation

ARI-STEVI 12.405 Pneumatic On-Off Control Valve PN16 DN40

Fast pneumatic actuation with Class A tightness for demanding steam and condensate service.

ARI-STEVI 12.405 Pneumatic On-Off Control Valve delivers reliable performance in automatic shutoff and sealing for industrial fluid management. In addition, the ARI-DP diaphragm actuator converts air signals into rapid physical movement. Therefore, it performs exceptionally under high temperature and pressure in steam, hot oil and condensate lines.

The EN-JL1040 cast iron body ensures stability up to 300°C, while the DN40 nominal diameter and PN16 pressure class suit medium pipelines. Moreover, a Kvs of 31 m³/h provides efficient flow control across a wide range. The PTFE V-ring spring-loaded seal requires no maintenance, and DIN EN 12266 Class A leakage rate creates a 100% safe barrier.

Technical data: Fig. 12.405; DN40; PN16 bar; Kvs 31 m³/h; stroke 10 mm; seat diameter Ø 41 mm; differential pressure 2 bar; body EN-JL1040 cast iron (GG-25); bonnet EN-JS1049 ductile iron; stem, disc and seat AISI 420 (1.4021+QT) stainless steel; PTFE V-ring spring-loaded maintenance-free stem seal; max operating temperature 300°C with graphite packing option.

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

Model / Figure No
Fig. 12.405
Nominal Diameter (DN)
DN40
Pressure Class
PN16 bar
Flow Coefficient (Kvs)
31 m³/h
Stroke / Seat Diameter / Differential Pressure
10 mm / Ø 41 mm / 2 bar
Body Material
EN-JL1040 Cast Iron (GG-25)
Bonnet Material
EN-JS1049 Ductile Iron
Stem, Disc and Seat Surface
AISI 420 (1.4021+QT) Stainless Steel
Stem Seal
PTFE V-Ring (Spring-Loaded, Maintenance-Free)
Maximum Operating Temperature
300 °C (with Graphite Packing Option)

This valve takes on critical duty in power plants, chemical facilities and steam distribution lines. Furthermore, it is used safely in HVAC systems and water treatment plants. Its compact design offers easy installation in tight spaces, and in particular the replaceable internal trim shortens maintenance time and ensures operational continuity.

Key Advantages

  • PTFE V-ring spring-loaded seal requires no maintenance and offers long service life
  • Replaceable disc and seat structure enables easy modification and maintenance
  • DIN EN 12266 Class A leakage rate guarantees 100% safe shutoff

Applications

  • Automatic flow control in steam and condensate systems
  • Chemical, petrochemical and textile production lines
  • Process safety in HVAC systems and power plants

In conclusion, the ARI-STEVI 12.405 Pneumatic On-Off Control Valve stands out as a reliable partner in industrial automation projects. ORFA supplies worldwide and provides technical support as an authorized distributor since 1985.

ORFA INDUSTRIAL PRODUCTS INDUSTRY AND TRADE INC.

Your Reliable Partner in Industrial Flow Technologies

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