MSS SP-80 Globe Valves
What MSS SP-80 requires for globe valves — applicability, key and testing requirements, the alternative standards, and compliant supply with full certification.
What does MSS SP-80 require for globe valves?
MSS SP-80 (Bronze Gate, Globe, Angle and Check Valves, Manufacturers Standardization Society (MSS)) sets the design, material and testing requirements for globe valves in its scope. MSS SP-80 covers the design, manufacture, and testing requirements for bronze gate, globe, angle, and swing check valves intended for general utility service at moderate temperatures and pressures. These bronze valves - rated at ASME Class 125 (PN 16) or Class 250 (PN 40) - are widely used in building services, HVAC, potable water, steam heating, compressed air, and light industrial applications where the relatively low pressure and non-aggressive fluid allow use of the more economical bronze alloy. They are the most common valve type in building utilities and plumbing infrastructure.
Applicable Pressure Classes
Key Requirements
- Class 125: 200 psi non-shock water/air at ambient; 125 psi steam saturated
- Class 250: 500 psi non-shock water/air at ambient; 250 psi steam saturated
- Body material: ASTM B62 (85-5-5-5), B584 UNS C89833/C87600, or equivalent copper alloy
- Stem material: ASTM B99 (silicon bronze) or B371 (copper-zinc alloy) for gate valves
- Disc/wedge: suitable bronze alloy with Brinell hardness per class
- Packing: graphite, PTFE, or acceptable soft packing for temperature rating
- Wheel handwheel or T-bar handle standard; lever optional
- End connections: NPT threaded (ASME B1.20.1) or solder (ASME B16.18/B16.22)
Testing Requirements
- Shell test: 2× working pressure, all valves, no leakage through body
- Seat test: 1× working pressure, acceptable bubble rate per test criteria
- Dimensional checks per MSS SP-80 tables for each valve type and size
Alternative Standards for Globe Valves
Other standards that also govern globe valves — useful for spec cross-acceptance.
Connected Engineering
Need MSS SP-80 globe valves?
We supply MSS SP-80-compliant globe valves with full certification — share your size, class and service for a 24-hour quote.