The Bray S40 Series is a one-piece stainless steel threaded ball valve featuring a CF8M body, 316 stainless steel ball and stem, RPTFE seats, and NPT threaded connections. The valve has a reduced-bore design, a maximum allowable operating pressure of 1000 psi WOG, and an operating temperature range of -46°C to 232°C, meeting zero-leakage sealing requirements. It is suitable for manual shutoff and isolation in small-diameter industrial compressed air, industrial water, and oil auxiliary piping.
S40 Series threaded ball valve product image
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Bray S40 Series Stainless Steel One-Piece Threaded Ball Valve
One-piece stainless steel threaded ball valve for isolation in air, water, and petroleum auxiliary lines.
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Specifications
- Size Range
- ¼ - 2" (8 - 50mm)
- Maximum Allowable Operating Pressure
- 1000 psi WOG (69 bar)
- Operating Temperature Range
- -50°F to 450°F (-46°C to 232°C)
- Body Material
- ASTM A351 Gr CF8M
- Ball Material
- ASTM A479 Type 316
- Stem Material
- ASTM A479 Type 316
- Seat Material
- RPTFE
- Leakage Class
- Zero leakage
- Body Type
- One-piece
- Port Type
- Reduced port
- End Connection
- Threaded ASME B1.20.1 NPT
- Design Standard
- MSS SP-110
- Testing Standard
- MSS-SP72
Application scenarios
Industrial Compressed Air Line Isolation
For manual shutoff and isolation in industrial compressed air piping. This series is suitable for air applications, features 1/4 to 2 in. NPT threaded connections, and provides a one-piece valve body with zero-leakage sealing performance.
Industrial Water Line Shutoff
For manual shutoff in industrial water piping and equipment water supply branches. This series is suitable for water applications, with sizes ranging from 1/4 to 2 in., a stainless steel valve body, and RPTFE seats.
Oil Auxiliary Line Isolation
For manual isolation in small-diameter threaded lines associated with oil applications. This series is suitable for oil and gas applications, with a maximum allowable operating pressure of 1000 psi WOG and NPT threaded end connections.
Selection points
CF8M Stainless Steel One-Piece Body
The body features a one-piece construction made of ASTM A351 Gr CF8M stainless steel, making it suitable for applications requiring a one-piece stainless steel threaded ball valve.
316 Stainless Steel Ball and Stem
The ball and stem are made of ASTM A479 Type 316 stainless steel, making the valve suitable for applications requiring Type 316 stainless steel for both the ball and stem.
Zero-Leakage Temperature Range with RPTFE Seats
The valve uses RPTFE seats with a nominal zero-leakage sealing rating and an operating temperature range of -46°C to 232°C.
Reduced-Bore Configuration for Small Sizes
The valve features a reduced-bore flow path in sizes ranging from 1/4 inch to 2 inches, making it suitable for applications requiring a small-size reduced-bore ball valve.
Installation & maintenance notes
Confirm the Media and Pressure Are Within the Rated Application Range
Before installation and commissioning, confirm that the medium falls within the specified application range, including air, water, petroleum, and natural gas, and that the actual operating pressure does not exceed 1000 psi WOG 69 bar.
Confirm the Operating Temperature Is Within the Rated Range
Before installation and commissioning, confirm that the actual operating temperature is within the rated temperature range of -46°C to 232°C.
Confirm NPT Thread Compatibility
The valve ends feature ASME B1.20.1 NPT threaded connections. During installation, confirm that the mating piping components are compatible with this threaded connection type.
FAQ
How does the S40 Series threaded ball valve work?
The S40 Series uses a one-piece body design with zero-leakage sealing. The ball rotates between the seats to open and close the valve, making it suitable for general-purpose gas and liquid media. The technical highlights on this page describe the body structure and sealing load distribution in greater detail.
What media and temperature range should be considered for the S40 Series?
The series is suitable for general-purpose media such as air, water, petroleum, and natural gas. The temperature range is -46°C to 232°C (-50°F to 450°F), supporting zero-leakage performance under extreme temperature conditions.
How should the S40 Series size and connection type be selected?
The size range is ¼"–2" (8–50mm), with threaded ASME B1.20.1 NPT end connections. During selection, confirm the operating pressure, media properties, and applicable site thread standard to match the valve body model.
What are the pressure performance specifications of the S40 Series?
The maximum allowable operating pressure is 1000 psi WOG (69 bar), with zero-leakage sealing, making the valve suitable for relatively high-pressure service.
What maintenance considerations are important during selection and installation?
Check the sealing condition of the threaded end connections, the sealing performance of the RPTFE seats, and the corrosion resistance provided by the compatible ball and stem materials. During routine maintenance, keep connection areas clean and follow the manufacturer's installation standards for inspection. The specific configuration must be confirmed according to the actual model and application conditions.