
Bray Commercial 310800-11010390 Valve
The Bray Commercial 310800-11010390 is a high-performance 8-inch butterfly valve engineered for critical isolation and throttling in commercial HVACR and industrial fluid systems. As a member of the resilient-seated Bray Series 31, this lug-style butterfly valve provides bidirectional, bubble-tight shutoff up to 175 PSI. This specific model serves as the direct 1-to-1 replacement for the discontinued 310800-11010119, ensuring seamless mechanical compatibility without the need for piping modifications. The 310800-11010390 features a ductile iron disc and a Buna-N (Nitrile) seat, making it ideal for water-based applications including chilled water, condenser water, and glycol-based loops. The internal disc-to-stem connection employs a high-strength through-stem design that eliminates potential leak paths, while the tongue-and-groove seat design simplifies field maintenance. With an ISO 5211 mounting flange, this commercial HVAC valve allows for the direct installation of manual handles, gear operators, or pneumatic and electric actuators without specialized brackets.
Key Benefits for Contractors- Precise Flow Control: The thin-profile ductile iron disc minimizes pressure drop and delivers superior flow characteristics for modulating or on-off service.
- Direct Retrofit Compatibility: Engineered to replace the legacy 310800-11010119 SKU, maintaining identical face-to-face dimensions and flange alignment.
- Dead-End Service Ready: The lug body type design allows for safe downstream piping removal while the valve remains under pressure—a critical advantage for system maintenance.
- Universal Flange Mating: Designed for installation between ASME B16.1 Class 125 or ASME B16.5 Class 150 flanges, utilizing molded O-rings that eliminate the requirement for additional gaskets.
- Corrosion Resistance: Standardized with a high-durability epoxy coating for protection in demanding mechanical room environments.
Is an additional gasket required for installation between flanges?
No. The Bray Series 31 features a resilient seat with molded O-rings on the face, providing a positive seal against the pipe flange without extra bolt gaskets.
Can this valve be used for dead-end service applications?
Yes, as a lug-style valve, the 310800-11010390 is specifically designed for 175 PSI dead-end service, allowing for piping isolation at the end of a line.
What is the proper orientation for installing 8" Bray valves?
It is best practice to install the valve with the stem in a vertical position. For systems involving heavy sediment or slurries, a horizontal stem orientation is recommended to allow the bottom disc edge to open downstream, preventing debris accumulation.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Original: $416.13
-65%$416.13
$145.65Bray Commercial 310800-11010390 Valve
The Bray Commercial 310800-11010390 is a high-performance 8-inch butterfly valve engineered for critical isolation and throttling in commercial HVACR and industrial fluid systems. As a member of the resilient-seated Bray Series 31, this lug-style butterfly valve provides bidirectional, bubble-tight shutoff up to 175 PSI. This specific model serves as the direct 1-to-1 replacement for the discontinued 310800-11010119, ensuring seamless mechanical compatibility without the need for piping modifications. The 310800-11010390 features a ductile iron disc and a Buna-N (Nitrile) seat, making it ideal for water-based applications including chilled water, condenser water, and glycol-based loops. The internal disc-to-stem connection employs a high-strength through-stem design that eliminates potential leak paths, while the tongue-and-groove seat design simplifies field maintenance. With an ISO 5211 mounting flange, this commercial HVAC valve allows for the direct installation of manual handles, gear operators, or pneumatic and electric actuators without specialized brackets.
Key Benefits for Contractors- Precise Flow Control: The thin-profile ductile iron disc minimizes pressure drop and delivers superior flow characteristics for modulating or on-off service.
- Direct Retrofit Compatibility: Engineered to replace the legacy 310800-11010119 SKU, maintaining identical face-to-face dimensions and flange alignment.
- Dead-End Service Ready: The lug body type design allows for safe downstream piping removal while the valve remains under pressure—a critical advantage for system maintenance.
- Universal Flange Mating: Designed for installation between ASME B16.1 Class 125 or ASME B16.5 Class 150 flanges, utilizing molded O-rings that eliminate the requirement for additional gaskets.
- Corrosion Resistance: Standardized with a high-durability epoxy coating for protection in demanding mechanical room environments.
Is an additional gasket required for installation between flanges?
No. The Bray Series 31 features a resilient seat with molded O-rings on the face, providing a positive seal against the pipe flange without extra bolt gaskets.
Can this valve be used for dead-end service applications?
Yes, as a lug-style valve, the 310800-11010390 is specifically designed for 175 PSI dead-end service, allowing for piping isolation at the end of a line.
What is the proper orientation for installing 8" Bray valves?
It is best practice to install the valve with the stem in a vertical position. For systems involving heavy sediment or slurries, a horizontal stem orientation is recommended to allow the bottom disc edge to open downstream, preventing debris accumulation.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
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Description
The Bray Commercial 310800-11010390 is a high-performance 8-inch butterfly valve engineered for critical isolation and throttling in commercial HVACR and industrial fluid systems. As a member of the resilient-seated Bray Series 31, this lug-style butterfly valve provides bidirectional, bubble-tight shutoff up to 175 PSI. This specific model serves as the direct 1-to-1 replacement for the discontinued 310800-11010119, ensuring seamless mechanical compatibility without the need for piping modifications. The 310800-11010390 features a ductile iron disc and a Buna-N (Nitrile) seat, making it ideal for water-based applications including chilled water, condenser water, and glycol-based loops. The internal disc-to-stem connection employs a high-strength through-stem design that eliminates potential leak paths, while the tongue-and-groove seat design simplifies field maintenance. With an ISO 5211 mounting flange, this commercial HVAC valve allows for the direct installation of manual handles, gear operators, or pneumatic and electric actuators without specialized brackets.
Key Benefits for Contractors- Precise Flow Control: The thin-profile ductile iron disc minimizes pressure drop and delivers superior flow characteristics for modulating or on-off service.
- Direct Retrofit Compatibility: Engineered to replace the legacy 310800-11010119 SKU, maintaining identical face-to-face dimensions and flange alignment.
- Dead-End Service Ready: The lug body type design allows for safe downstream piping removal while the valve remains under pressure—a critical advantage for system maintenance.
- Universal Flange Mating: Designed for installation between ASME B16.1 Class 125 or ASME B16.5 Class 150 flanges, utilizing molded O-rings that eliminate the requirement for additional gaskets.
- Corrosion Resistance: Standardized with a high-durability epoxy coating for protection in demanding mechanical room environments.
Is an additional gasket required for installation between flanges?
No. The Bray Series 31 features a resilient seat with molded O-rings on the face, providing a positive seal against the pipe flange without extra bolt gaskets.
Can this valve be used for dead-end service applications?
Yes, as a lug-style valve, the 310800-11010390 is specifically designed for 175 PSI dead-end service, allowing for piping isolation at the end of a line.
What is the proper orientation for installing 8" Bray valves?
It is best practice to install the valve with the stem in a vertical position. For systems involving heavy sediment or slurries, a horizontal stem orientation is recommended to allow the bottom disc edge to open downstream, preventing debris accumulation.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.












