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'PRIME' Needle valves are made for various operating pressure and temperatures. Looking at ever increasing demand and variety of applications, we have developed special purpose valves for instrumentation and flow control application.
DESIGN: Needle valves are also known as isolation valve, shut off valve or regulatory valve. Rotating angle tipped spindle, which in turn moves axially over the orifice seat, controls flow of the fluid. At the lower most position or closed position of the spindle, inlet orifice is completely blocked and thus isolates the fluid flow. In open condition Teflon or Grafoil packing seal restricts the leakage from the bonnet end.
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Needle Valves, PN40
Brass body and topwork
with needle cone
Part No. 04010.X.0000
Female thread connection (G) acc. to ISO 7-1 Rp
Applications:
Suitable for non-toxic, non-inflammable fluids, gases and vapours.
The laws, regulations and standards are to observe for the range of application.
Working temperatures: -10°C / +14°F (263K) up to +100°C / +212°F (373K)
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APPLICATION
This valve in cartridge form restricts flow in both directions. Ideal for fine control of a non compensated system or as a shut off valve
Cartridge valve restrictor, free flow in one direction and variable restriction in the other. Ideal for meter-in or meter-out applications
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Swagelok needle valves are available in a wide range of sizes, options and configurations for instrumentation lines.
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The MV-13 Manual PFA Needle Valve is designed for high purity or aggressive chemical and gas applications. The design utilizes a molded high purity PFA body and stem as the only wetted components. The stem sealing area is precision machined for smooth, consistent flow. A PTFE ferrule assures a leak tight seal between stem and body. A PFA stem stop prevents removal of stem from body during operation. The MV-13 is available in straight through and angle configurations, several orifice sizes, and numerous end connections.
FEATURES:
* One piece PFA stem/handle and bodies provide high strength and corrosion resistance
* PFA stem stop provide a safer operation
* Angle and straight through configurations, with numerous end configurations, including Parflare, reduces connections, mounting space, and overall cost
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General description
M&M piston actuated valves are manufactured with high performing components as a standard.
PTFE and FKM seals together with internals in AISI 316 offer outstanding compatibility and cover a wide variety of industrial applications.
Added features as position indicator, built-in exhaust filter, wide choice of connections and optional versions, long life cycles even in severe conditions represent our competitive advantage.
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Hayward Needle Valves are used for accurate metering of fluids. Turning the thumbwheel moves a tapered piston into the PTFE seat to control the flow down to a few drops per minute. Precision molded,fine pitched stem threads permit this very fine metering flow control.
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ASCO/JOUCOMATIC has developed a wide range of valves for all fluids, whether neutral or aggressive, made out of brass, bronze, cast iron or 316L stainless steel.
Reliability is ensured by:
* A monobloc rod, with stainless steel from the reed to the piston
* Guidance by 2 extra-large PTFE bearings.
Pilot solutions: solenoid valves on valves or mounted on subbases and valve islands.
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TORK T-PV Series ,pneumatic piston valve
application: water,air,steam,gas,natural gas,chimicals,petroleum products,food,sterilazation,water treatment,dyeing,cleaning plant,aggressive liquids,vacuum application,oil,petrol,alcohole,hydroulic liquids,salt solutions,acids,organic solvent
All body is AISI316 Stainless Steel,high flow rate,high quality,compact,suitable vacuum application,normally open and normally closed position.
advantage of TORK pneumatic piston valves:less pressure drop than globe valve,
short open-close time
high flow rate
body and actuator AISI 316
screwed,flanged and welding connection
on-off and proportional control
TORK T-PV Series ,pneumatic piston valve series range
T-PV.S700 Serie; Screwed connection, 1/2"......2" G( BSP ), on request NPT connection..
T-PV.W700 Serie; welding connection, size :from 1/2"......up to 2" .
T-PV.F700 Serie; Flange connection,size:from NW15.....up to .NW50 .
T-G.3W Serie: Solenoid valve,1/4"-3/2 way.it is used on-off control pneumatic piston valves
T-SW Serie: Proximity switch limit switch box ,gives signal when valve open-closed.
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The VP300 is a multipurpose, poppet type pneumatic valve designed for dispensing low viscosity to mid-high viscosity materials, such as silicone dispensing, RTV dispensing, epoxy dispensing, rubber adhesive dispensing, grease dispensing and dispensing fluids with fillers.
Features
• Designed for low to mid-high viscosity materials
• Stroke adjustment provides shot size control
• Suck-Back eliminates post-dispense "dripping"
• Separated wetted parts reduces maintenance
• Ideal for filled material
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The design of this double valve type is distinguished by two crossflow passages and special valve poppet and spool elements which provide the valve's unique flow characteristics. Two pressure switches are mounted on an adaptor and measure the pressure in the crossflow passages of the main valve. In normal operation the two valve elements move simultaneously and the pressure switches send a matched pair of signals to the control system. If there is a malfunction and the valve elements do not move simultaneously, the pressure switches send an unmatched pair of signals, the control system switches off the valve and prevents any further valve operation. Therefore, the two pressure switches, when correctly connected to the safety circuit, carry out a reliable monitoring function which is in full accordance with the requirements of EN 692.
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AVAILABLE IN CETOP/DIN/ISO STANDARDS FOR-
WAY FUNCTION- NORMALLY OPEN OR CLOSED
CHECK FUNCTION
FLOW FUNCTION
PRESSURE FUNCTION
CAN BE COMBINED WITH VR4* SERIES VALVES
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VARIVENT® Single-seat Shut-off Valves are used for simple shutoff at flow path intersections within the pipe system. One seal is used on the one-part valve disk for shutting-off two pipes against each other. In case of sealing failure, controlled leakage drain is not provided.
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MODELS :
VITC* (Inline Throttle Valves) Mounting (Threaded)
VDV7* (Throttle without check Valve) Mounting (Subplate / Threaded)
VDRV7* (Throttle withcheck Valve) Mounting (Subplate / Threaded)
SIZES : 3/8 " TO 1-1/2"
Max. Pressure : 500 psi(350 bar)
FLOWS : 13 - 119 gpm / 50 - 450 lpm
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Needle valves
* DN 4 - DN 50
* Body and Spindle of steel, Rotary knob of aluminium
* PN: 350 bar
* Custom orders on request
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Application
Regulating / hand expansion valves are regularly used at the evaporator in liquid circulation systems. Also these valves are used in liquid circulation systems before a vessel. Here they prevent high pressure fluctuation in the vessel when fluid stream into the vessel.
In order to function as a regulating valve, each NB size has a 'valve-cone' has a unique form. The shape of the cone and the percentage of opening of the valve determines the m3/h flow and/or pressure drop. Use the Revalco selection software to determine the correct valve.
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Style 175 GTO Gas Valve
- Permanently lubricated at the factory for maintenance-free service
- Low operating torque - No plug "freezing"
- 100% shut-off; 360° turn or 90° Open Left operation
- Features a superior tamper-proof design
- No leakage to the atmosphere
- One valve covers full pressure range
Designed to meet the requirements of ANSI B16.33 1981, the Dresser® Style 175 GTO Gas Service Valve incorporates the same complementary sealing principles as the Style 175 meter curb valve, yet offers a rated working pressure to 175 psig. Each GTO valve is 100% factory-tested at high and low pressure while in a clear non-corrosive fluid.
Just as the Style 175 meter curb valve, the GTO is assembled at the factory and sealed against tampering by a spring loaded stainless steel retaining ring which cannot be removed with ordinary tools. It is tamper proof as specified in D.O.T. 192.363 Part C.
A plastic ring inserted between the retaining ring and bonnet, plus permanently lubricated port seals, assure low, uniform operating torque, preventing the plug from freezing to the body.
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1- Application in 'normal' and ‘high pressure' installations is possible. Supplied as PN40 design and PN52 optional.
2- Low weight and compact design simplify handling
3- Modular build up
4- Large bonnets and 67 degree bonnet (straight execution) make spindle and bonnet extensions superfluous
5- Quick valve installation without dismounting of the bonnet
Kv (Cv) Values
The valves of Revalco and especially sizes 200-300mm (10"-12") contributes to lower pressure drops and thus energy savings in your system.
Until this very moment no competitor has been able to construct a valve with flow values better then the Revalco RV200-300 series !!
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1- Application in 'normal' and ‘high pressure' installations is possible. Supplied as PN40 design and PN52 optional.
2- Low weight and compact design simplify handling
3- Modular build up
4- Large bonnets and 67 degree bonnet (straight execution) make spindle and bonnet extensions superfluous
5- Quick valve installation without dismounting of the bonnet
Kv (Cv) Values
The valves of Revalco and especially sizes 200-300mm (10"-12") contributes to lower pressure drops and thus energy savings in your system.
Until this very moment no competitor has been able to construct a valve with flow values better then the Revalco RV200-300 series !!
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1- Application in 'normal' and ‘high pressure' installations is possible. Supplied as PN40 design and PN52 optional.
2- Low weight and compact design simplify handling
3- Modular build up
4- Large bonnets and 67 degree bonnet (straight execution) make spindle and bonnet extensions superfluous
5- Quick valve installation without dismounting of the bonnet
Kv (Cv) Values
The valves of Revalco and especially sizes 200-300mm (10"-12") contributes to lower pressure drops and thus energy savings in your system.
Until this very moment no competitor has been able to construct a valve with flow values better then the Revalco RV200-300 series !!
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TYPE GATE, GLOBE, CHECK
SIZE RANGE 1/4” TO 4”
BONNET TYPE BOLTED, WELDED, PRESSURE SEAL, Y-PATTERN
MATERIAL A105, F11, F22, F5, F9, F304, F304L, F316, F316L, F44, F51,
SPECIAL ALLOY …etc
PRESSURE RANGE CL 150 TO 4500
ENDS SCREW, SOCKET WELD, BUTT WELD
FLANGE: ANSI, JIS, DIN
OPERATOR HANDWHEEL, CHAINWHEEL, BEVEL GEAR, PNEUMATIC, HYDRAULIC, MOTORIZE
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The NV-30 series is a precision adjustable flow control used in pneumatic and fluidic systems. Nickel plated brass construction provides excellent corrosion resistance, and a clean and bright appearance. Flow control needle has 7 to 8 turns of precision adjustment, and maximum flow approximately equal to a 0.025" orifice. Unique laminar flow design ensures sensitive, repeatable control. Perfect for use in application requiring precision gas metering, and circuit speed or sequencing control.
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Gate Valves and Needle Valves
Speed and flow can be regulated by a sf gate valve (aside from any dependence on pressure differences or viscosity). This is carried out by means of the coned seal which can be raised or lowered by the spindle. The further the spindle is raised, the greater the passage and hence the flow.
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The cryogenic valves with a bellows seal that is exposed to the medium and a backup packing are also suitable for cost-effective installation in horizontal pipelines. The valves are available with globe or angle bodies made of cold-resisting stainless steel or aluminum.
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This type of valve is actuated by pressure acting on a piston or diaphragm. The fluid is usually neutral e.g. air, water, hydraulic oil. The pressure range varies and is specified accordingly in a data table.
"Normally Closed" (N/C) valves of this type remain closed under spring pressure, when de-activated.
"Normally Open" (N/O) valves of this type remain open under spring pressure, when de-activated.
When pressure is connected to port "Z" the valves open or close according to type.
A separate 3/2 pilot valve is used to supply pressure to port "Z", it is mounted either directly on the actuator or remotely.
In some cases a 4/2 or 5/2 pilot valve will be required. The main valve position can be N/C or N/O. The basic position is determined by connecting the pilot valve output lines accordingly. (The direction of flow is usually indicated by an arrow or shown schematically on the body).
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Generam description :
Vacuum angle and inline valves are devices that regulate the flow of gases, fluids or materials through a structure or aperture by opening, closing or obstructing a port or passageway.
Angle valve assemblies consist of an
- Actuator
- Poppet
- Valve Body
The actuator provides the power to position or transport the valve's poppet which is attached to the valve's body via a circular bonnet flange.
The poppet closes or opens one of the valve's body ports.
The valve body is a vacuum tight chamber that is screwed, flanged or welded into a larger vacuum vessel or system.
MDC angle and inline valves are offered in various sizes ranging from .25" to 10" port diameters. Standard port mounts include:
- Del-Seal™ CF metal seal flanges, recommended for ultrahigh vacuum service
- ISO Kwik-Flange™ and ISO Large-Flange™ fast-make and fast-break elastomer seal flanges, ideal for high vacuum applications requiring frequent assembly and disassembly.
Standard Features :
- UHV and HV series
- Del-Seal™ CF, ISO KF Kwik-Flange™, ISO LF Large-Flange™ and Tube-Weld port connections.
- Manual and Electropneumatic actuators
- 120VAC air control solenoid valve
- OFE copper metal and Viton® elastomer bonnet seals
- Welded bellows actuator seal
- TIG welded internal body joints
- Electropolished interior and exterior surfaces
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Cast Ductile Iron Angle Valves for use in industrial applications. Services include; steam, oil and gas, limited chemical, petroleum refining and production.
* Raised Face Flanges - Bolted Bonnet - Outside Screw and Yoke - Bronze Trim
* 285 PSI/19.7 Bar Non-Shock Cold Working Pressure to -20º F to 100º F/-29º C to 38º C - Testing Application to MSS SP-85
* Size Range - 2" - 8"
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Technical details of Type 63:
2/2-Way pressure controlled valve
Body: RG-5, Brass, Stainless Steel
Sealing: NBR, FKM, PTFE, EPDM
Connection: G3/8-G3
Pressure range: 0-40 bar
Pressure controlled valves have a simple and sturdy design and therefore they are suitable for nearly all media up to a viscosity of 600 mm²/s. Additionally, they are immune to particles in the media. These valves are also chemical and thermal resistant because of there design. Together with a small ATEX approved control valve these valves are also suitable in hazardous areas.
Application fileds for pressure controlled valves are, for example:
- Filling systems
- Brewing equipment
- Chemical systems
- Mixing systems
- Food processing industry
- Concrete and cement industry
- Vacuum equipment
- Water treatment
- Pneumatics
Extras for pressure controlled valves are, for example:
- visual settings display
- electric indication
- manual operation
- free of oil and grease
- vacuum design
- vacuum and pressure design
- double acting actuator
- free of nonferrous heavy metal
- flanges according to ANSI
- temperatures up to +300°C
- higher pressure ranges
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