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20,000 psi Double Block and Bleed (DBB) Needle Valves | Ultra High Pressure Valves and Fittings
The Double Block and Bleed (DBB) Needle Valve is engineered for critical high-pressure applications up to 20,000 psi. Designed with coned and threaded connections for 1/4" to 1" medium pressure tubing, this valve ensures safe, reliable, and leak-free service. Manufactured from cold worked stainless steel and 17-4-H1075 materials, and featuring a non-rotating stem and Teflon packing, it is ideal for pressure monitoring, chemical injection, and drain line isolation.
- DBB series: 1/4" to 1" medium pressure, coned and threaded connections
- Non-rotating stem design
- Manufactured from cold worked stainless steel and 17-4-H1075
- 1/4" FNPT vent
Teflon packing from 0°F (-17.8°C) to 400°F (204°C
- Technical Parameters
- Main feature
- Operating range
| Pressure Rating: | Up to 20,000 psi (1379 bar) |
| Tubing Size Range: | 1/4" to 1" Medium Pressure (Coned and Threaded) |
| Material: | 316 Stainless Steel (Body, Stem, Seat) |
| Sealing Mechanism: | Metal-to-Metal Seating |
| Vent Connection: | 1/4" FNPT Vent |
| Stem Design: | Non-Rotating Stem (Prevents Galling) |
| Packing & Stem Sleeve: | Optimized Material Selection (Reduced Torque, Extended Cycle Life) |
| Corrosion Resistance: | Excellent (Suitable for Harsh Chemical & Abrasive Environments) |
