Apollo 10 Series Hot Water Boiler Safety Relief Valves
Brass/bronze safety relief valves protect ASME Section IV hot water heating boilers and hydronic heating systems. High capacity design features corrosion resistant construction. Brass, satin or polished chrome finishes available. ASME Section IV Inlet Size 3/4 - Outlet - 3/4” & 1 Set Pressure 20-150 psi Maximum temperature service: 250°F Applications: Ideal for use with hot water boilers and hydronic heating systems.
• Pressures from 20 to 150 psig
• Registered in all Canadian provinces and territories, CRN #0G8547.5C
• Stainless steel springs standard
• 10-624/634 are ideal for use in various plumbing systems, commercial boiler applications and swimming pool heaters
• 10-418/417 are ideal for use in swimming pool heater applications
• Model 10-104 and 10-301 are available with optional satin or polished chrome finish
• 10-321 available in polished chrome only
Select a link under the "item" tab below to order.
| Cat # | Inlet NPT | Outlet NPT |
| 10-102 | 3/4F 20F | 1F 25F |
| 10-104 | 3/4M 20M | 1F 25F |
| 10-301 | 3/4M 20M | 3/4F 20F |
| 10-303 | 3/4F 20F | 3/4F 20F |
| 10-321 | 3/4M 20M | 3/4F 20F |
| 10-407 | 3/4M 20M | 3/4F 20F |
| 10-408 | 3/4F 20F | 3/4F 20F |
| 10-417 | 3/4M 20M | 3/4F 20F |
| 10-418 | 3/4F 20F | 3/4F 20F |
| 10-624 | 3/4M 20M | 3/4F 20F |
| 10-634 | 3/4F 20F | 3/4F 20F |
| P/N Suffix Key: | |||
| Set Pressure psig |
Exterior Finish | ||
| Plain Brass |
Satin Chrome | Polished Chrome | |
| 20 | -02 | -41 | -67 |
| 22 | -03 | -42 | -68 |
| 25 | -04 | -43 | -69 |
| 30 | -05 | -44 | -70 |
| 35 | -06 | -45 | -71 |
| 40 | -07 | -46 | -72 |
| 43 | -08 | -47 | -73 |
| 45 | -09 | -48 | -74 |
| 50 | -10 | -49 | -75 |
| 55 | -11 | -50 | -76 |
| 60 | -12 | -51 | -77 |
| 65 | -13 | ||
| 70 | -14 | ||
| 75 | -15 | ||
| 80 | -16 | ||
