SAFE-SN · REYCO R · RL
Steam · Gas · Liquids
ASME XIII · UV / NB
ASME Flanges · NPT
ASME Safety Relief Valves: The ARI-SAFE and REYCO Product Lines
To protect a boiler, pressure vessel, or process system, a safety relief valve must reliably discharge the certified relieving capacity during an overpressure event. ARI offers the SAFE-SN ANSI semi-nozzle series and the REYCO full-nozzle line, available with flanged or compact connections. Selection depends specifically on required capacity, flange ratings, process media, and the applicable ASME code.
01
ASME Overpressure Protection
Direct spring-loaded valve lines documented in accordance with ASME Section XIII, featuring UV and NB stamp markings on certified designs.
02
Two Design Configurations
Semi-nozzle SAFE-SN for ANSI flanged equipment. Full-nozzle REYCO for API 526 applications and small connections.
03
Sizing
Discharge capacity and orifice area take precedence over the nominal connection size alone.
04
Canadian Project
CRN, province, construction, and compliance documentation verified for every model offered.
Three SAFE and REYCO product lines engineered to ASME standards
SAFE-SN for ANSI flanges, REYCO R for API 526 orifices, and REYCO RL for NPT connections and low flow rates.
SEMI-NOZZLE · ASME FLANGES
ARI SAFE-SN ANSI
Spring-loaded, semi-nozzle safety valve with ASME B16.5 flanged connections, engineered for steam, gas, or liquid relief service. ASME Section XIII compliant with UV and NB stampings.
Construction
Semi-Nozzle
ASME Flanges
150/150 · 300/150
Dimensions
1″ × 2″ to 6″ × 10″
Models
901 · 902 · 911 · 912
Recommended for: ANSI flanged equipment and steam, gas, or liquid systems requiring a certified semi-nozzle safety valve.
FULL-NOZZLE · API 526
ARI REYCO R
API 526 full-nozzle safety relief valves engineered for industrial plant protection. Available in conventional, soft-seat, or balanced bellows designs, with a robust construction optimized for ease of maintenance.
Construction
Full-Nozzle
ASME Pressure Classes
Class 150 to 2500 depending on model
API Orifice Plates
D to T
Models
R · RO · RB · RBO
Recommended for: vessels and processes requiring standardized API 526 orifices and certified capacities.
FULL-NOZZLE · NPT / WELD
ARI REYCO RL
Compact safety relief valves with full nozzle design for small connections. RL14 and RL40/41: male or female NPT, with socket weld or flanged options depending on configuration. Compliant with ASME Section XIII, UV, and NB standards.
Construction
Full-Nozzle
Fittings
NPT · SW · BW · Flanged
Orifices
A · D · B · C · G
Series
RL14 · RL40/41
Recommended applications: small threaded valves, auxiliary equipment, and replacements requiring imperial/American connections.
SAFE-SN, REYCO R or REYCO RL: Which One Is Right for Your Application?
Three North American product lines, but not interchangeable without proper engineering calculations. Pipe size alone is not enough: you must evaluate certified capacity, set pressure, backpressure, and connection requirements.
Select Product Line
SAFE-SN ANSI
Semi-nozzle design with ASME 150/150 or 300/150 flanged connections for Figure 901, 902, 911, and 912 valves.
REYCO R · API 526
Full nozzle design with standardized API 526 orifice sizes D through T, engineered for high-capacity discharge.
REYCO RL
Full nozzle with small orifices A, D, B, C, and G. NPT, welded, or flanged connections available depending on the model.
Essential Specifications
Set pressure
Set pressure determined in accordance with the maximum allowable working pressure and equipment design code.
Relieving Capacity
Flow rate and orifice sizing calculations based on governing scenarios for steam, gas, or liquid service.
Backpressure
Discharge line back pressure and the potential selection of a balanced bellows pressure relief valve.
Provide us with the process fluid, set pressure, relieving capacity, operating temperature, backpressure, and flange specifications for a fully documented selection.
Safety relief valves for boilers, pressure vessels, and industrial processes
The SAFE-SN ANSI and REYCO product lines are engineered for overpressure protection. Selection depends on media type, set pressure conditions, and required certified design.
OPTIONS AND MAINTENANCE
SAFE and REYCO Valve Construction Options
Accessories vary depending on the product line. Bellows, soft seals, and lifting mechanisms should be selected based on the process fluid, operating pressure, and mounting configuration.
Balancing Bellows
The REYCO R balanced bellows configurations are engineered to handle specific back-pressure conditions. The SAFE-SN series is also available in bellows-sealed designs.
Metal or Soft Seated
Lifting Levers and Test Devices
Depending on the model: caps, lifting levers, test devices, and position indicators for reliable maintenance.
Required Data for Sizing a Relief Valve
A reliable quote requires more than just NPS and pressure class: here are the technical parameters to include with your RFQ.
Fluid
Steam, gas, or liquid
Specify the fluid type and media properties under relief discharge conditions.
Pressure Ratings
Set Pressure and Back Pressure
Specify set pressure (psig) and outlet back pressure.
Capacity
Discharge Flow Rate
Please provide the overpressure scenario along with the calculated flow rate in lb/hr, SCFM, or GPM, depending on the fluid.
End Connections
NPS · Class · NPT
Please specify the ASME flanges or NPT/SW/BW end connections, as well as the project province.
ARI-Armaturen Industrial Valves and Sealing Solutions
Across Quebec and Canada, VAMECA provides expert guidance in selecting SAFE-SN and REYCO safety relief valves for equipment protection, STEVI control valves for precise modulation, FABA globe valves for reliable isolation, and PREDU pressure reducing valves.
Control & Regulation
ARI STEVI
Control valves engineered to precisely regulate flow, pressure, or temperature in industrial process piping.
Isolation
ARI-FABA
Bellows-sealed globe valves for steam, gas, and thermal oil applications.
Pressure Relief
ARI-PREDU
Direct-acting and pilot-operated self-contained pressure regulators for steam networks and industrial equipment.
Your Trusted Canadian Partner for ARI-SAFE and REYCO Valves
Need a safety relief valve for a replacement or a new project? VAMECA guides you through selecting the right product line and prepares a comprehensive quote complete with technical specifications and manufacturer documentation.
A Local Technical Expert in Quebec
VAMECA supports Canadian industrial operators in the technical selection and procurement of safety relief valves.
Selecting the Right Product Line
Select from the SAFE-SN, REYCO R, and REYCO RL series based on your orifice size, flow capacity, and connection requirements.
