3/4" NPT Full Port Brass Ball Valve – 600 PSI CWP (MBB-75)
The PneumaticPlus MBB-75 is a professional-grade 3/4" NPT Full Port Brass Ball Valve rated for 600 PSI CWP / 150 PSI WSP. Constructed with a forged brass body and valve cap made from C37700 brass, this model features a 3/4" MNPT x FNPT connection, full port design, and a Cv of 29.76 for manual shutoff applications within the published ratings. The full port bore size of 0.75" (A) provides a larger internal opening to help reduce flow restriction.
- Full port design with a 0.75" bore (A) provides a larger internal opening to help reduce flow restriction.
- 3/4" NPT Male x Female connection supports installations where MNPT x FNPT shutoff valve configuration is required.
- Vacuum Service rated up to 29" Hg, making it suitable for pressurized service and vacuum applications within published limits.
- Forged brass body and valve cap (C37700) provide durability for industrial and commercial environments.
- PTFE ball seat and packing with NBR O-ring support dependable sealing performance across a temperature range of -20°F to 365°F.
- Blow-out proof stem supports safer operation under pressure.
- Chrome-plated brass ball and chrome-plated steel handle with vinyl grip provide reliable quarter-turn shutoff control.
- 600 PSI CWP / 150 PSI WSP rating (per manufacturer specifications).
Common Applications & Use Cases
The MBB-75 is suitable for various industrial and commercial environments based on its connection style, flow capacity, and construction:
- Main Air Header Isolation: Suitable for manual shutoff on 3/4" air distribution lines using MNPT x FNPT threaded connections.
- High-Flow Shutoff Applications: Full port bore and Cv 29.76 can be used as reference points when selecting a valve for higher-flow manual shutoff service.
- Industrial Machinery Supply: Suitable for equipment or systems that use 3/4" NPT male x female shutoff valves and operate within the published pressure, temperature, and media compatibility requirements.
- Vacuum and General Utility Service: Supports compatible vacuum service up to 29" Hg and general shutoff duties in appropriate fluid handling systems.
Technical Specifications
| Feature | Details |
|---|---|
| Manufacturer Part # | MBB-75 |
| Thread Configuration | 3/4" NPT Male x Female (MNPT x FNPT) |
| Body / Valve Cap Material | Forged Brass C37700 |
| Bore (Full Port) | 0.75" (A) |
| Flow Coefficient (Cv) | 29.76 |
| Pressure Rating | 600 PSI CWP / 150 PSI WSP |
| Vacuum Rating | Up to 29" Hg |
| Temperature Range | -20°F to 365°F |
| Seats / Seals | PTFE Ball Seat and Packing; NBR O-Ring |
| Ball Material | Chrome-Plated Brass |
| Stem / Packing Nut | Brass C37700 |
| Handle | Chrome-Plated Steel with Vinyl Grip |
| Compliance | UL, CSA/CUS, CE, FM Approved; Meets MSS SP-110; RoHS Compliant |
| Weight | 0.78 lb |
MBB-75 Dimensional Data
| Model | NPT Size | A (In) | B (In) | C (In) | D (In) | E (In) | Cv | Weight (lb) |
|---|---|---|---|---|---|---|---|---|
| MBB-75 | 3/4" | 0.75 | 1.74 | 3.00 | 2.09 | 4.29 | 29.76 | 0.78 |
Frequently Asked Questions
Q: Is the MBB-75 full port or standard port?
A: The MBB-75 is a full port brass ball valve with a 0.75" bore (A).
Q: Is this valve safe for use with compressed air?
A: Yes. The MBB series is rated for 600 PSI CWP and features a blow-out proof stem for manual shutoff applications within published limits.
Q: What are the end connections on this valve?
A: This model uses 3/4" NPT male x female threads (MNPT x FNPT).
Q: Can this valve be used in vacuum applications?
A: Yes. The MBB series is rated for vacuum service up to 29" Hg.
Q: What is the Prop 65 warning for this product?
A: WARNING: This product can expose you to chemicals, including lead, which is known to the State of California to cause cancer and reproductive harm.
Q: What thread sealant should I use for installation?
A: For a reliable NPT connection, we recommend using high-quality PTFE tape or a dedicated pipe thread sealant suitable for brass fittings and the intended service media.
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