Bronze Direct-Acting Pressure Reducing Valve – Z-Tide Industrial RDTB Series
The Z-Tide Industrial RDTB Series is a compact direct-acting pressure reducing valve designed to automatically maintain a stable downstream pressure in compressed air and water systems. Manufactured from heavy-duty bronze with a balanced piston and diaphragm design, the RDTB Series provides fast, accurate pressure regulation while minimising leakage and maintaining a constant outlet pressure regardless of normal inlet pressure variations. Available in sizes from ½" to 2½" BSPT, these valves are ideal for OEM equipment, industrial water systems, compressed air installations and general process applications.
Valve function & operation
Function:
Direct-acting pressure reducing valve
Automatic downstream pressure control
Operating principle: Balanced piston and diaphragm
Automatically maintains a constant outlet pressure
Pressure gauge included as standard
Port sizes: ½", ¾", 1", 1¼", 1½", 2" and 2½" BSPT
Optional threads: NPT
Mounting position: Any position
Pressure & regulation
Maximum inlet pressure: 12 Bar
Pressure tested: 21 Bar
Outlet pressure adjustment ranges:
2 to 5 Bar
4 to 9 Bar
Additional pressure ranges available on request
Maximum media temperature: +60°C
Minimum media temperature: -15°C
Maximum media viscosity: 40 cSt
Flow capacity (Cv): 2.5 to 28
(According to valve size)
Construction & materials
Body: Bronze
Upper cover: Bronze
Piston: Bronze
Shaft: Stainless steel
Spring: Spring steel
Spring cover: Polyamide 66
Standard seals: NBR
Optional seals:
EPDM
FKM (Viton)
Pressure gauge: Included
Media compatibility
✓ Compressed air
✓ Water
✓ Fluids up to 40 cSt compatible with the valve materials
Performance & design
✓ Balanced piston and diaphragm design provides stable downstream pressure
✓ Fast response to changing flow demand
✓ Accurate pressure regulation with minimal leakage
✓ Compact industrial design for OEM and retrofit applications
✓ Pressure gauge supplied for easy adjustment and monitoring
✓ Suitable for installation in any orientation
✓ Heavy-duty bronze construction for long service life
Applications
Compressed air systems
Industrial water distribution
OEM machinery
General plant services
Process water systems
Cooling water circuits
Equipment pressure regulation
General industrial fluid control
Manufacturing quality
Manufactured using a heavy-duty bronze body with a balanced piston and diaphragm assembly, the Z-Tide Industrial RDTB Series has been engineered for reliable long-term pressure regulation in industrial environments. The balanced pressure system automatically maintains a stable downstream pressure regardless of normal inlet pressure fluctuations, while the combined diaphragm and piston design provides rapid response with minimal leakage and accurate outlet pressure control. The compact construction allows installation in confined spaces without compromising performance, making the RDTB Series an excellent choice for both new equipment and retrofit installations.
Ordering information
Simply select the required port size, outlet pressure range and seal material before adding the valve to your basket. Optional NPT threads, EPDM or FKM (Viton) seals and alternative pressure adjustment ranges are available on request.
