Parker Autoclave MVBB Series Needle Valve,Mini Block and Bleed - 20,000 PSI
針閥，微型阻塞和排放-20000 PSI

Parker Autoclave MVBB系列是一個小型阻塞和排放閥，設計用于阻塞，排放和校準儀器系統。該閥門為旋轉上升閥桿設計，額定壓力為20000 psi（1379巴）。Parker Autoclave MVBB系列微型斷流和放氣針閥是一種雙閥桿歧管閥門，提供了一種經濟方便的阻塞、放氣和校準壓力變送器和壓力計的方法。該閥門采用微型閥門填料和閥桿設計，使其緊湊且易于使用。為了安全操作，閥門可以安裝在表面或面板上。此外，歧管式閥門減少了安裝所需的配件數量和空間。這些閥門有一個上升閥桿桿體設計，工作壓力為20000磅/平方英寸（1379巴）。錐管和螺紋連接采用Parker高壓滅菌器管，尺寸從1/4“到3/8”。使用特殊的石墨編織紗填料（GY），工作溫度可以從0°F到800°F（-17.8°C到427°C）。316不銹鋼結構是標準材料，有其他選擇。這些閥門具有許多特點，可在各種應用中提供可靠和無故障的服務。

Parker Autoclave’s MVBB Series is a mini block and bleed valve that is designed for blocking, bleeding, and calibration of instrumentation systems. This valve is a rotating rising stem design, rated to 20,000 psi (1379 bar).Parker Autoclave's MVBB Series mini block and bleed needle valves are a two stem manifold valve providing an economical and convenient method of blocking, bleeding and calibrating pressure transmitters and gauges. The valve utilizes the mini valve packing and stem design making it compact and easy to use. The valve can be surface or panel mounted for safe operation. In addition, manifold style valves reduce the number of fittings and space required for installation.These valves have a rising stem bar stock body design with working pressures to 20,000 psi (1379 bar). The cone and thread connections utilize Parker Autoclave tubing with sizes from 1/4" to 3/8”". Operating temperatures can go from 0°F to 800°F (-17.8°C 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.

Markets:
- Oil and Gas
- Petrochemical
- Chemical

Features/Benefits:
- MVBB Series valve design provides large valve performance in a small package
- Tubing sizes: 1/4" and 3/8"
- 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.

Applications:
- Calibrating Transmitters
- Gauge Testing
- High Pressure Fluid handling

MVBB Series Block and Bleed Needle Valves | MVBB Series Block and Bleed Needle Valves on Autoclave Engineers, Fluid Components Div. Of Snap-tite Inc.

• MVBB Series valve design provides large valve performance in a small package
• Tubing sizes: 1/4" and 3/8"
• Rising stem/barstock 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 (Teflon) 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.

Technical Specifications
Maximum Operating Pressure: 1379 bar
Tube Outside Diameter: 1/4, 3/8 inch
Connection Type: SF250CX , SF375CX
Bore Diameter: 0.094 inch, 2.39 mm

Part Maximum Working Pressure (psi) Tube O.D. (mm) Stem Type Valve Type
20MVBB 20,000 6.35 mm Vee Rising Stem
20MVBB6 20,000 9.53 mm Vee Rising Stem