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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

Fulfo

• 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 Armaturen

• Control Valves


• Steam Traps