Vindum MV Needle Valves
Manufacturer: Vindum Engineering, Inc.
Model Number: MV Valves (see Model Number Listing)
Vindum Engineering’s line of Hastelloy needles valves offer safe and reliable flow control of pressures to 12,000 psi (at ambient temperature) and tubing of 1/8” or 1/16” diameter.
The innovative MV-210 and MV-310 (two-stem) valves and MV components all share the small footprint design that simplifies mounting and makes it easy to build compact fluid control systems.
Wetted parts of the valves and components are made of Hastelloy C276, suitable for a wide variety of applications with corrosive fluids.
Vindum MV valves use and O-ring seal (“no packing”) which ensures a durable and consistent fluid seal and the 2-008 O-ring size provides the user with a wide choice of seal materials for different fluids.
Couplings are compatible with Parker Autoclave Engineers 1/8” Speed-Bite™ compression fitting (W125) and BuTech (LPF2/G2 & LPF1/LPF2 ferrules and glands).
Rapid Delivery: most valves and fittings are in-stock. Custom configurations are available within 4 weeks.
MV-Series Valves & Fittings Applications
- Oil & gas laboratory research
- Chemical/petrochemical laboratories
- Any application with corrosive fluids and/or elevated temperatures, with selection of compatible O-ring material.
Categories: Vindum MV Needle Valves
The Vindum Modular Valve System (MVS) is designed to allow fast, easy construction of high pressure fluid flow systems. The MV system is available in a wide variety of configurations for valves, manifolds, and “breadboard style” mounting grids. Our manual valves are needle-style valves, and can withstand pressures to 12,000 psi, and temperatures of up to 350°F (higher temperatures options available), with proper O-ring selection.
Features of Vindum Needle Valves and Fittings
- Hastelloy C276 wetted parts for use to 12,000 psi
- “Four-corners” integrated mounting points for consistent 25mm / 1” grid spacing shared by all MV valves & fittings.
- Several valve models available, including two-stem needle valve.
- Non-rotating V-type stem for on/off service with increased durability.
- AL-Bronze seal keeper provides smooth actuation.
- Bubble-tight valve shutoff for working with gases.
- Standardized tubing connection requires no special tools.Compatible with Autoclave Speed-Bite™ and BuTech ferrule compression systems (1/8” or 1/16” tubing).
- Range of O-ring seal materials available: UHMWPE, Viton, Aflas, Chemraz, Buna-N,, etc.). O-ring seal is common size (2-008) and readily available.
- In-stock for quick delivery & world-wide shipping. Common models of needle valves and fittings are available for quick delivery.
The Vindum Modular Valve System (MVS) specifications are as shown:
Specifications of Vindum Needle Valves and Fittings
- Pressure Rating (MAWP): 12,000 psi (827 bar) at Room Temperature
- Temperature Rating: 0°F to 320°F (-18°C to 160°C)
- Metallurgy: 316 SS outer body with Hastelloy C276 inner core. All wetted parts are Hastelloy C276.
- Valve Stem: Hastelloy C-276, Vee Stem, non-rotating design.
- Valve Seal: Metal-to-Metal, suitable for liquids and gases.
- Orifice and Flow Coefficient: 0.067” (1.7 mm) orifice and Cv=0.09 (2-way straight pattern)
- Connections: Compression fittings for 1/8” or 1/16” tubing, compatible with Parker Autoclave Engineers Speed-Bite™ and BuTech. These compression fittings are not recommended for use above 650°F (343°C) or below 0°F (-18°C).
- Dimensions: 1.4”x1.4”(LxW) footprint for all valves & fitting bodies. See “Part Numbers” tab for more details.
Vindum MV Needle Valves use a replaceable O-ring seal (size 2-008), with PEEK and PTFE back-up rings.
There are several seal material options available for Vindum MV Needle Valves. The most common O-ring materials are listed here:
- Viton (fluorelastomer or FKM): 0°C-200°C, Elastomer. Excellent for oils & most chemicals. Avoid phosphate esters and ketones. This is the standard O-ring material supplied, unless otherwise requested.
- Buna-N (NBR/Nitrile elastomer): several grades available. Continuous use to about 110°C, but HBNR compounds available to 150°C. Good for petroleum oils & fluids, water. Not recommended for ketones (MEK, acetone), strong acids >10% concentration), and halogenated or nitro hydrocarbons.
- UHMW-PE (ultrahigh molecular weight polyethylene – thermoplastic): Self-lubricating (low friction), long-wearing, excellent abrasion & chemical resistance (including petroleum oils, organic alcohols, ketones, and acids). Not recommended for use with highly oxidizing chemicals (eg, bleach) or chlorinated solvents (cause swelling). Maximum operating temperature 82°C.
- AFLAS (TFE/P or FXM elastomer): Excellent chemical resistance to most acids & bases, amines, petroleum oils & fuels, and steam. Good permeation resistance but not as resilient as Viton. Maximum operating temperature 204°C.
- Chemraz/Kalrez (FFKM): Excellent chemical, heat, and explosive decompression resistance. Expensive. Maximum operating temperature 249°C (higher in special formulation).
- Other: Other O-ring materials are available. Please contact Vindum Engineering to discuss.
Determining the best O-ring material for your application can be done with the help of several online resources that list chemical compatibility of many O-ring materials.
Click one of the links below for more details:
- Parker O-ring Handbook: Perhaps the most frequently cited reference for O-ring material compatibility
- Graco Chemical Compatibility Guide
- Goodyear Chemical Resistance Charts
- Cole-Palmer Chemical Database
Model Numbers and additional details for Vindum MV Hastelloy Valves are shown in the table below. Click here to Download the PDF Document.