Spence Engineering Company, Inc.

• Safety Valve Selection Chart
• Safety Valve Sizing
• Spence / Kunkle Crossover information
• Figure 31/41 Series*{Bronze/Cast Iron}
• Figure 31/41 41A Series Flanged{Cast Iron}
• Figure 800 Series*
• Figure 10 Series
• Figure 15 Series & 15V Series*
• Figure 50 Series
• Drip Pan Elbow*
• Figure 710 Series
• Figure 760 Series
• Figure 770 Series
• Figure 780 Diverter Valve
• Figure 790 Cryotree Assembly

 Leser

• Type 431 433 - Safety Relief Valve
• Type 441 442 - Safety Relief Valves with Flanged Connections
• Type 526 - Flanged Steel Pressure Relief Valves
• Type 437 459 462 - Safety Valves with Threaded Connections
• Type 483 484 485 488 - Safety Valves for Sanitary/Clean Service
• Type 447 - PTFE Lined Safety Valves for Corrosive Service Conditions
• Type 310 311 - Change Over Valves

Tuchenhagen

• Type 488 - Safety Relief Valve
• Type 488 - Safety Relief Valve with Pneumatic Lifting Device

Fulflo

• V-Series Screw Valves - Standard/Handwheel
• V-Series Flange Type Valves - Standard/Handwheel
• A-Series Screw & Flange Type Valves - Direct Acting/Pilot Operated

Mankenberg

• Pressure Reducing Valve Type 152
• Pressure Reducing Valve Type 502
• Pressure Reducing Valve Type 652
• Steam Trap 2

Watts

• Temperature & Hot Water Boiler Relief Valve
• 174A Series Hot Water Boiler Pressure Relief Valve
• 740 Series Hot Water Pressure Relief Valve

Durabla Fluid Technology

• Type SCV
• Type BSS Basic Check
• Type BSSV Vacuum Breaker

Advance Valve Inc.

• Fabricated Exhaust Heads
• Drip Pan Elbows

Conbraco

• 10-600 Series - Hot Water Relief Valve
• 18 Series - Temperature and Pressure Relief Valve
• 12-200 Series - Steam Heating Boiler Safety Valve
• 13 Series - Low Pressure Steam Boiler Safety Relief Valve
• 14-200 Series - Low Pressure Steam Boiler Relief Valve

Rockwood Swendeman

• RXSO Bronze Safety Relief Valves

ARI Safety Relief Valves

• ARI SAFE
• ARI SAFE ANSI
• ARI SAFE FN ANSI