SMC (6550090) 1215 Series Brass Check Valve ; 3/4" FNPT x 3/4" FNPT BUNA
1215 Series Brass Check Valve
3/4" FNPT threaded brass check valve with BUNA seal for reliable backflow prevention in residential and light commercial water systems
Prevents Backflow and Protects Equipment
One-Way Flow Control
Spring-loaded mechanism ensures water flows in only one direction, protecting pumps, tanks, and filtration equipment from reverse flow damage
Brass Body Construction
Durable brass housing withstands corrosion and high pressures in residential and commercial applications
BUNA Seal Material
Buna-N rubber sealing element provides reliable closure and chemical resistance for potable water systems
Standard 3/4" Threading
Female NPT threads on both ends fit standard pipe connections for straightforward installation without adapters
Technical Details
| Model Number | SMC 6550090 |
| Series | 1215 Series |
| Connection Size | 3/4" FNPT x 3/4" FNPT |
| Body Material | Brass |
| Seal Material | BUNA (Buna-N Rubber) |
| Flow Direction | One-way |
Common Applications
The SMC 6550090 brass check valve installs in any water system requiring 3/4" NPT threaded connections. Typical applications include reverse osmosis systems, booster pumps, pressure tanks, well systems, water filtration housings, and irrigation lines. Use after pumps to prevent backflow, before storage tanks to maintain pressure, or in any location where one-way flow control is needed. Compatible with potable water and most treated water applications.
Equipment Protection
Prevents reverse flow damage to pumps and membranes
Corrosion Resistant
Brass construction for long service life
Standard Threading
3/4" FNPT fits common pipe connections
Reliable Sealing
BUNA rubber provides consistent closure
1215 Series Brass Check Valve
3/4" FNPT threaded brass check valve with BUNA seal for reliable backflow prevention in residential and light commercial water systems
Prevents Backflow and Protects Equipment
One-Way Flow Control
Spring-loaded mechanism ensures water flows in only one direction, protecting pumps, tanks, and filtration equipment from reverse flow damage
Brass Body Construction
Durable brass housing withstands corrosion and high pressures in residential and commercial applications
BUNA Seal Material
Buna-N rubber sealing element provides reliable closure and chemical resistance for potable water systems
Standard 3/4" Threading
Female NPT threads on both ends fit standard pipe connections for straightforward installation without adapters
Technical Details
| Model Number | SMC 6550090 |
| Series | 1215 Series |
| Connection Size | 3/4" FNPT x 3/4" FNPT |
| Body Material | Brass |
| Seal Material | BUNA (Buna-N Rubber) |
| Flow Direction | One-way |
Common Applications
The SMC 6550090 brass check valve installs in any water system requiring 3/4" NPT threaded connections. Typical applications include reverse osmosis systems, booster pumps, pressure tanks, well systems, water filtration housings, and irrigation lines. Use after pumps to prevent backflow, before storage tanks to maintain pressure, or in any location where one-way flow control is needed. Compatible with potable water and most treated water applications.
Equipment Protection
Prevents reverse flow damage to pumps and membranes
Corrosion Resistant
Brass construction for long service life
Standard Threading
3/4" FNPT fits common pipe connections
Reliable Sealing
BUNA rubber provides consistent closure
Description
1215 Series Brass Check Valve
3/4" FNPT threaded brass check valve with BUNA seal for reliable backflow prevention in residential and light commercial water systems
Prevents Backflow and Protects Equipment
One-Way Flow Control
Spring-loaded mechanism ensures water flows in only one direction, protecting pumps, tanks, and filtration equipment from reverse flow damage
Brass Body Construction
Durable brass housing withstands corrosion and high pressures in residential and commercial applications
BUNA Seal Material
Buna-N rubber sealing element provides reliable closure and chemical resistance for potable water systems
Standard 3/4" Threading
Female NPT threads on both ends fit standard pipe connections for straightforward installation without adapters
Technical Details
| Model Number | SMC 6550090 |
| Series | 1215 Series |
| Connection Size | 3/4" FNPT x 3/4" FNPT |
| Body Material | Brass |
| Seal Material | BUNA (Buna-N Rubber) |
| Flow Direction | One-way |
Common Applications
The SMC 6550090 brass check valve installs in any water system requiring 3/4" NPT threaded connections. Typical applications include reverse osmosis systems, booster pumps, pressure tanks, well systems, water filtration housings, and irrigation lines. Use after pumps to prevent backflow, before storage tanks to maintain pressure, or in any location where one-way flow control is needed. Compatible with potable water and most treated water applications.
Equipment Protection
Prevents reverse flow damage to pumps and membranes
Corrosion Resistant
Brass construction for long service life
Standard Threading
3/4" FNPT fits common pipe connections
Reliable Sealing
BUNA rubber provides consistent closure
