The Castair Full Flow Ball Valve BV100 is a 1" NPT female threaded ball valve designed for use in compressed air systems. At $40.66, it is a purpose-built shutoff valve for Castair compressor installations — providing a positive manual shutoff in the air supply line without the flow restriction of a standard non-full-flow valve. The full-flow design means the bore through the valve ball matches the pipe inside diameter, keeping pressure drop across the valve minimal when it is open.
What Full Flow Means
Standard ball valves have a reduced-bore ball — the opening through the ball is smaller than the pipe, which creates turbulence and pressure drop at flow. A full-flow (full-port) ball valve uses a ball with a bore that matches the pipe ID. For compressed air systems where every PSI of pressure drop matters — particularly in high-demand shop environments or at the end of long distribution runs — a full-flow valve keeps the line pressure consistent from the tank to the tool.
Technical Specifications
- SKU: BV100
- Connection Size: 1" NPT Female (both ends)
- Valve Type: Full Flow Ball Valve
- Price: $40.66
- Manufacturer: Cast Air (Castair)
- Category: Accessories
Key Features
- 1" NPT Female Connections: Standard thread size for compressed air distribution lines and compressor outlet connections in this size class
- Full Flow Design: Full-port ball matches pipe ID — minimal pressure drop when valve is fully open
- Positive Shutoff: Ball valve provides a clean, definitive shutoff — either fully open or fully closed, no intermediate positions that leak under pressure
- Castair Quality: Built for compressed air service — rated for the pressures generated by reciprocating compressors
Applications
- Tank outlet shutoff on Castair reciprocating compressors
- Branch line isolation valves in compressed air distribution systems
- Shutoff before air dryers, filters, or regulators in the compressed air treatment train
- Any 1" NPT compressed air application requiring a positive manual shutoff
BV Series Selection Guide
Castair makes full-flow ball valves in multiple sizes to match different line sizes: BV25 (1/4"), BV100 (1"), BV125 (1-1/4"), BV150 (1-1/2"). Match the valve size to your line size — a valve that is undersized for the line restricts flow and a valve that is oversized is unnecessary cost. Call 866-217-0063 if you need help selecting the right size.
Why Buy From OEM Diagnostic Tools?
We have been supplying compressor parts and accessories to shops and industrial buyers since 2016. We stock Castair ball valves and can confirm the right size for your application. Free shipping on qualifying orders, full manufacturer warranty, and direct support at 866-217-0063.
Call 866-217-0063 for quick answers and help!
