NLB Series No Lube Pressure Bypass Valve
The Simtech NLB Series Pressure Bypass Valve is a 3-port valve designed to relieve excess fluid pressure in high purity applications where lubrication is not permitted. When mounted in-line, the pressure by-pass valve will permit fluid to pass through the system. When pressure approaches the valve setting, fluid is vented through the bottom port. Adjustable screw and lock-nut makes it easy to accurately pre-set relief pressure. Note: This valve is not designed to be used in piping systems with back-pressure on the downstream side.
Available sizes: ¼” – 2”
Body materials: PVC, PP, PVDF, PTFE
Seals: EPDM, Viton, Kalrez
Connections: ¼" - 1" FNPT; 1½" - 2" MPT
- Wide working pressure range (10 to 80 psi)
- Top entry for easy in-line maintenance and can be factory pre-set upon request.
- Ideal for high purity piping systems as well as most harsh chemicals and corrosives.
- No metal contact with fluid
1-30 of 54 Products | Sort by: |
Product | Size | Material | Seals | End Connection | List Price | Add to Cart |
NLB 101 4 002 | ¼" | PVC | EPDM | Threaded: NPT | $734.00 | Add to Cart |
NLB 101 4 005 | ½" | PVC | EPDM | Threaded: NPT | $778.00 | Add to Cart |
NLB 101 4 007 | ¾" | PVC | EPDM | Threaded: NPT | $964.00 | Add to Cart |
NLB 101 4 010 | 1" | PVC | EPDM | Threaded: NPT | $1,103.00 | Add to Cart |
NLB 101 4 015 | 1½" | PVC | EPDM | Threaded: NPT | $1,456.00 | Add to Cart |
NLB 101 4 020 | 2" | PVC | EPDM | Threaded: NPT | $1,571.00 | Add to Cart |
NLB 102 4 002 | ¼" | PVC | FPM | Threaded: NPT | $759.00 | Add to Cart |
NLB 102 4 005 | ½" | PVC | FPM | Threaded: NPT | $800.00 | Add to Cart |
NLB 102 4 007 | ¾" | PVC | FPM | Threaded: NPT | $1,014.00 | Add to Cart |
NLB 102 4 010 | 1" | PVC | FPM | Threaded: NPT | $1,144.00 | Add to Cart |
NLB 102 4 015 | 1½" | PVC | FPM | Threaded: NPT | $1,513.00 | Add to Cart |
NLB 102 4 020 | 2" | PVC | FPM | Threaded: NPT | $1,641.00 | Add to Cart |
NLB 401 4 002 | ¼" | Polypropylene | EPDM | Threaded: NPT | $844.00 | Add to Cart |
NLB 401 4 005 | ½" | Polypropylene | EPDM | Threaded: NPT | $887.00 | Add to Cart |
NLB 401 4 007 | ¾" | Polypropylene | EPDM | Threaded: NPT | $1,079.00 | Add to Cart |
NLB 401 4 010 | 1" | Polypropylene | EPDM | Threaded: NPT | $1,344.00 | Add to Cart |
NLB 401 4 015 | 1½" | Polypropylene | EPDM | Threaded: NPT | $2,049.00 | Add to Cart |
NLB 401 4 020 | 2" | Polypropylene | EPDM | Threaded: NPT | $2,646.00 | Add to Cart |
NLB 402 4 002 | ¼" | Polypropylene | FPM | Threaded: NPT | $870.00 | Add to Cart |
NLB 402 4 005 | ½" | Polypropylene | FPM | Threaded: NPT | $912.00 | Add to Cart |
NLB 402 4 007 | ¾" | Polypropylene | FPM | Threaded: NPT | $1,112.00 | Add to Cart |
NLB 402 4 010 | 1" | Polypropylene | FPM | Threaded: NPT | $1,379.00 | Add to Cart |
NLB 402 4 015 | 1½" | Polypropylene | FPM | Threaded: NPT | $2,124.00 | Add to Cart |
NLB 402 4 020 | 2" | Polypropylene | FPM | Threaded: NPT | $2,720.00 | Add to Cart |
NLB 407 4 002 | ¼" | Polypropylene | Kalrez® | Threaded: NPT | PleaseCall | Add to Cart |
NLB 407 4 005 | ½" | Polypropylene | Kalrez® | Threaded: NPT | PleaseCall | Add to Cart |
NLB 407 4 007 | ¾" | Polypropylene | Kalrez® | Threaded: NPT | PleaseCall | Add to Cart |
NLB 407 4 010 | 1" | Polypropylene | Kalrez® | Threaded: NPT | PleaseCall | Add to Cart |
NLB 407 4 015 | 1½" | Polypropylene | Kalrez® | Threaded: NPT | PleaseCall | Add to Cart |
NLB 407 4 020 | 2" | Polypropylene | Kalrez® | Threaded: NPT | PleaseCall | Add to Cart |