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Needle Valve, Double Block & Bleed 20DBNV Series - 20,000 psi
Brand: Autoclave Engineers - by ParkerParker Autoclave's 20DBNV Series double block and bleed needle valves are a three system manifold valve providing an economical and convenient method of blocking, bleeding and calibrating pressure transmitters and gauges. The valve utilizes standard valve packing and stem design making it compact and easy to use.
These valves have a rising stem bar stock body design with working pressures to 20,000 psi (1,379 bar). The cone and thread connections utilize Parker Autoclave tubing with sizes from 1/4" to 3/8".
Operating temperatures can go from 0° to 800° F (-17.8° to 427° C) with special graphite braided yarn packing (GY). 316 stainless steel construction is the standard material with other options available.
Along with their many features these valves provide dependable and trouble free service in wide variety of applications.
Features- 20DBNV Series valve design provides large valve performance in a small package
- Tubing sizes: 1/4" to 1"
- Rising stem/bar stock body design
- Metal-to-metal seating achieves bubble-tight shut-off, longer stem/seat life in abrasive flow, greater durability for repeated on/off cycles and excellent corrosion resistance
- PTFE encapsulated packing provides dependable stem and body sealing
- Stem and packing gland design have been selected to achieve extended thread cycle life and reduced handle torque
- Temperatures from -100° F (-73° C) to 600° F (316° C)
1 - 12 of 18 Part Numbers
20DBNV H9 M4
- Tube Connection - F562C
- Vent Connection - SF250CX20
- Operating Temperature - Valves with PTFE Packing
- Anti-Vibration Collet & Gland Assembly - No
20DBNV H9 M4 B
- Tube Connection - F562C
- Vent Connection - SF250CX20
- Operating Temperature - Standard Valve with Cryogenic Trim Material & PTFE Packing to -100° F (-73° C)
- Anti-Vibration Collet & Gland Assembly - No
20DBNV H9 M4 BK
- Tube Connection - F562C
- Vent Connection - SF250CX20
- Operating Temperature - Standard Valve with Cryogenic Trim Material & PTFE Packing to -100° F (-73° C)
- Anti-Vibration Collet & Gland Assembly - Yes
20DBNV H9 M4 K
- Tube Connection - F562C
- Vent Connection - SF250CX20
- Operating Temperature - Valves with PTFE Packing
- Anti-Vibration Collet & Gland Assembly - Yes
20DBNV H9 M4 TG
- Tube Connection - F562C
- Vent Connection - SF250CX20
- Operating Temperature - Standard Valve with PTFE Glass Packing to 600° F (316° C)
- Anti-Vibration Collet & Gland Assembly - No
20DBNV H9 M4 TGK
- Tube Connection - F562C
- Vent Connection - SF250CX20
- Operating Temperature - Standard Valve with PTFE Glass Packing to 600° F (316° C)
- Anti-Vibration Collet & Gland Assembly - Yes
20DBNV M4 M4
- Tube Connection - SF250CX20
- Vent Connection - SF250CX20
- Operating Temperature - Valves with PTFE Packing
- Anti-Vibration Collet & Gland Assembly - No
20DBNV M4 M4 B
- Tube Connection - SF250CX20
- Vent Connection - SF250CX20
- Operating Temperature - Standard Valve with Cryogenic Trim Material & PTFE Packing to -100° F (-73° C)
- Anti-Vibration Collet & Gland Assembly - No
20DBNV M4 M4 BK
- Tube Connection - SF250CX20
- Vent Connection - SF250CX20
- Operating Temperature - Standard Valve with Cryogenic Trim Material & PTFE Packing to -100° F (-73° C)
- Anti-Vibration Collet & Gland Assembly - Yes
20DBNV M4 M4 K
- Tube Connection - SF250CX20
- Vent Connection - SF250CX20
- Operating Temperature - Valves with PTFE Packing
- Anti-Vibration Collet & Gland Assembly - Yes
20DBNV M4 M4 TG
- Tube Connection - SF250CX20
- Vent Connection - SF250CX20
- Operating Temperature - Standard Valve with PTFE Glass Packing to 600° F (316° C)
- Anti-Vibration Collet & Gland Assembly - No
20DBNV M4 M4 TGK
- Tube Connection - SF250CX20
- Vent Connection - SF250CX20
- Operating Temperature - Standard Valve with PTFE Glass Packing to 600° F (316° C)
- Anti-Vibration Collet & Gland Assembly - Yes
1 - 12 of 18 Part Numbers
Specifications
Body Material
- 316 Stainless Steel
Maximum Operating Pressure
- 1,379 bar
- 20,000 psi
Tube Type
- SF375CX20
- F562C
- SF250CX20
Vent Type
- SF250CX20
- Calibrating Transmitters
- Gauge Testing
- Pressure Monitoring and Test
- Chemical Injection