The Z-Tide Industrial BFS-S Series is a premium flanged pilot-assisted pressure sustaining (back pressure) valve designed to automatically maintain a minimum upstream pressure in high-flow water and compatible fluid systems. Manufactured in either 304 or 316 stainless steel, the BFS-S Series combines excellent corrosion resistance with precise upstream pressure regulation, maintaining a constant minimum back pressure regardless of downstream demand or flow fluctuations. Available from DN50 to DN1000 with PN16 flanges and optional ANSI 150 lb or JIS10K drilling, these valves are ideally suited to industrial process systems, cooling water, food production, pharmaceutical applications and corrosive fluid handling.
✓ Externally mounted pilot controller allows servicing without removing the main valve body from the pipeline
✓ Unique U-ring sealing system provides long, reliable, maintenance-free service
✓ Automatically maintains a minimum upstream pressure regardless of downstream flow demand
✓ Pressure gauge provides continuous indication of sustained upstream pressure
Applications
Industrial water distribution
Process water systems
Cooling water circuits
Chemical processing
Food and beverage manufacturing
Pharmaceutical production
Water treatment plants
Pump protection systems
Corrosive process fluid control
General industrial process control
Manufacturing quality
Manufactured using heavy-duty 304 or 316 stainless steel with precision-machined stainless steel internal components, the Z-Tide Industrial BFS-S Series has been engineered for demanding industrial environments where corrosion resistance, reliability and precise upstream pressure regulation are essential. Its pilot-assisted pressure sustaining controller continuously monitors upstream pressure and automatically adjusts the main valve to maintain the selected minimum back pressure, protecting pumps, upstream equipment and critical process systems regardless of downstream demand. The patented cylindrical piston design provides exceptionally high flow capacity while the externally mounted pressure gauge allows simple commissioning, adjustment and routine monitoring. The removable pilot controller further simplifies maintenance by allowing servicing without removing the main valve body from the pipeline.
Ordering information
Simply select the required body material (304 or 316 stainless steel), flange size, pressure sustaining range, seal material and flange standard before adding the valve to your basket. Alternative pressure ranges, flange standards, seal materials and custom sizes up to DN1400 (56") are available on request.
Port Size:
4 inch Flange DN100 , 5 inch Flange DN125 , 6 inch Flange DN150 , 8 inch Flange DN200 , 10 inch Flange DN250, 12 inch Flange DN300 , 14 inch Flange DN350 , 16 inch Flange DN400 , 18 inch Flange DN450 , 2 inch Flange DN50, 20 inch Flange DN500 , 21/2 inch Flange DN65 , 3 inch Flange DN80
Operation:
Pressure Assisted
Pressure:
0.2 Bar (200 mBar), 0.3 Bar (300 mBar), 0.4 Bar (400 mBar), 0.5 Bar (500 mBar), 0.6 Bar (600 mbar), 0.7 Bar (700 mBar), 0.8 Bar (800 mBar), 1 Bar, 1.2 Bar, 1.3 Bar, 1.4 Bar, 1.5 Bar, 1.6 Bar, 2 Bar, 2.5 Bar, 3 Bar, 3.5 Bar, 4 Bar, 4.5 Bar, 5 Bar, 5.5 Bar, 6 Bar, 6.5 Bar, 7 Bar, 7.5 Bar, 8 Bar
Seals:
NBR, FKM (Viton)
Media:
Fluid (Non Aggressive), Fluid (Slight Acid/Alkali), Water, Water (RO/Pure/Demin)
