Safety valves - SAFE SN ANSI | ARI | Philippopoulos s.a.
Safety valves - SAFE SN ANSI | ARI | Philippopoulos s.a.

Safety valves - SAFE SN ANSI | ARI

Reliable Protection for Industrial Systems – Safety valves - SAFE SN ANSI | ARI

Keep your operations running smoothly with the Safety valves - SAFE SN ANSI | ARI. Engineered for industrial applications, these safety valves provide critical pressure relief that protects equipment, teams, and processes from unexpected pressure surges. With ARI’s years of expertise behind every design, these valves deliver trustworthy performance in even the toughest working conditions.

Standout Features & Benefits of Safety valves - SAFE SN ANSI | ARI

  • Ultimate Pressure Protection: Instantly releases excess pressure to prevent damage, ensuring your machinery and piping systems stay safe.
  • ANSI Compliance: Manufactured to strict ANSI standards, these valves guarantee compatibility and reliable performance in various industrial setups.
  • Precision Engineering: Each valve is crafted for accurate release and resealing, reducing the risk of leaks and keeping operations efficient.
  • Rugged Durability: Built from high-grade materials to withstand high pressures, corrosive environments, and long-term use.
  • Easy Installation: Designed for quick, hassle-free fitting into existing systems, helping you avoid unnecessary downtime.
  • Minimal Maintenance: Smart design means the valves require less attention, saving you time and resources over their lifespan.
  • Wide Range of Applications: Ideal for use in chemical plants, refineries, power stations, and any facility where pressure safety is critical.

The Safety valves - SAFE SN ANSI | ARI are not only about compliance—they bring peace of mind. Their advanced mechanism reacts instantly, preventing costly outages, equipment failures, and potential safety hazards. This means less worrying about sudden pressure spikes and more confidence in everyday operations. Whether you’re managing steam, water, or gases, these valves fit seamlessly into your processes and adapt to diverse operational demands.

Upgrade your plant’s safety with ARI’s trusted solution. With their combination of robust design, precise control, and straightforward handling, the Safety valves - SAFE SN ANSI | ARI are the smart choice for anyone looking to boost reliability and maintain a secure working environment.

Standard (Options)
  • ANSI
Connection (Options)
  • Flanged
Material (Options)
  • SA216WCB
  • SA351CF8M
Pressure Rating (Options)
  • 150 lbs
  • 300 lbs

Datasheet and documents

Description

ARI-SAFE-SN ANSI (Semi-Nozzle) Safety Valve Features:

  • Approval & Certification:
    • Type-test approved according to ASME Code Section VIII-Division 1.
    • UV-stamp and NB-stamp for national board certification.
  • Spring-loaded design: Direct-loaded with spring.
  • Precision Engineering: Wear-resistant seat/disc and precision disc alignment and guide for reliable operation.
  • Material Options:
    • Standard SA216WCB (carbon steel) and SA351CF8M (stainless steel) for the body.
    • Stainless steel bellows or EPDM bellows options for sealing.
  • Operating Temperature: From -75°F to 800°F depending on the material.


Valve Models and Sizes:

  • Fig. 901 / 902 / 911 / 912 models available, with various bonnet designs (closed, open, or gastight).
  • Flange Type: ANSI 150/300 (ASME B16.5 standard).
  • Nominal Pressure: Available in ANSI 150, ANSI 300 ratings.
  • Nominal Diameter: From 1" x 2" to 6" x 10".


Application:

  • Steam, gas, and liquid media: Used for pressure relief in systems handling gases, vapors, and liquids.
  • Back Pressure Handling: Can handle built-up back pressure (up to 10% of set pressure, higher on request). No back pressure is allowed on request.
  • Set Pressure: Available in various set pressure ranges, with specific capacities for different applications, including saturated steam, air, and water.


Sizing & Capacity:

  • Sizing calculations are based on API 520 (ASME VIII) for mass flow (gas), volume flow (liquid), and set pressure (psig).
  • Capacity Data:
    • For saturated steam at set pressures between 15-493 psig, with discharge capacities ranging from 510 lb/hr for smaller sizes to 14460 lb/hr for larger sizes.
    • For air, similar data ranges from 182 SCFM to 60421 SCFM depending on the size and set pressure.
    • Water capacity ranges from 61 gal/min at 15 psig to 52344 gal/min at higher pressures.


Spring Ranges:

  • The valve is available with various spring ranges for different set pressure requirements, with standard ranges from 15-22 psig to 250 psig and higher options for specific applications.


Dimensions:

  • The center-to-face dimensions are according to API 526, and the flange dimensions follow ANSI B16.5 standards.
  • The valve dimensions and weights vary according to the nominal diameter, with sizes ranging from 1"x2" up to 6"x10".


Approvals & Additional Features:

  • Soft-sealing disc options are available for different sealing materials, such as EPDM, Viton, or Neoprene.
  • Stainless steel bellows for back pressure compensation (only for closed versions).
  • Special design options include proximity switches, test gag, rupture disc, and heating jackets for specific applications.


MyValve® Sizing Program:

  • MyValve® is a software tool for sizing valves and components based on given parameters like capacity, pressure, and medium. It provides direct access to spare parts drawings, product data, and more, with the ability to calculate the right valve size based on your needs.

Tests and Certification

DGRL 2014/68/EU (PED Pressure Equipment Directive)
ASME Code Section VIII-Division 1 - UV-stamp, NB-stamp (USA)
VdTÜV (Germany)