Series 120 Safety Relief Valves
Light capacity with top discharge and open lift lever
Specifications
- Body Material: Brass
- Outlet Position: Top
- Cap Style: Open Lift Lever
- Max Pressure: 200 psig
- Media: Air/Gas, Steam
- Certifications: ASME VIII, CRN
Manufactured by Aquatrol • Authorized Distributor • American-Made
Series 121 Safety Relief Valves
Light capacity with protective lever cap
Specifications
- Body Material: Brass
- Outlet Position: Top
- Cap Style: Lift Lever with Cap
- Max Pressure: 200 psig
- Media: Air/Gas, Steam
- Certifications: ASME VIII, CRN
Manufactured by Aquatrol • Authorized Distributor • American-Made
Series 125 Safety Relief Valves
Side discharge for piped exhaust applications
Specifications
- Body Material: Brass
- Outlet Position: Side
- Cap Style: Open Lift Lever
- Max Pressure: 200 psig
- Media: Air/Gas, Steam
- Certifications: ASME VIII, CRN
Manufactured by Aquatrol • Authorized Distributor • American-Made
Series 126 Safety Relief Valves
Side discharge with protective lever cap
Specifications
- Body Material: Brass
- Outlet Position: Side
- Cap Style: Lift Lever with Cap
- Max Pressure: 200 psig
- Media: Air/Gas, Steam
- Certifications: ASME VIII, CRN
Manufactured by Aquatrol • Authorized Distributor • American-Made
Overview
The 120 Series provides economical overpressure protection for light-capacity air/gas and steam applications. Perfect for small compressors, pneumatic systems, and light industrial steam equipment where full-size valves aren’t required.
Available in top outlet (120/121) and side outlet (125/126) configurations, with open lever or lever-with-cap options to meet various installation requirements.
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Frequently Asked Questions
What's the difference between 120, 121, 125, and 126?
First digit indicates outlet position: 120/121 have top outlets, 125/126 have side outlets. Second configuration: 120/125 have open lift levers, 121/126 have lift levers with protective caps.
What's the maximum pressure for ASME code service?
ASME certification applies up to 200 psig. Above 200 psig, these valves operate as non-code relief devices.