Products/Services for Valve Hopkinson
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Solenoid Valves - (1022 companies)Solenoid valves are devices that use a solenoid to control valve activation. They are considered electromechanical control devices used to control liquid or gas flow. An electrical current runs through a coil to control the valve by moving a plunger...Valve TypeSingle SolenoidDouble Solenoid -
Hydraulic Valves - (684 companies)Hydraulic valves contain and transfer the flow and pressure of hydraulic fluid in hydraulic power systems. They range from simple shutoff valves to precision control valves. In their unpowered state, hydraulic valves can be normally open (open... -
Check Valves - (1952 companies)Check valves are self-activating safety valves that permit gases and liquids to flow in only one direction, preventing process flow from reversing. They are classified as one-way directional valves. Check valves are self-activating safety valves... -
Butterfly Valves - (1270 companies)Butterfly valves control flow through a circular disc or vane by turning the valve's pivot axis at right angles to the direction of flow in the pipe. They are normally used as throttling valves to control flow. Butterfly valves are quarter-turn... -
Gas Valves - (535 companies)Gas valves are used to handle and control the flow of gaseous media such as liquefied petroleum and natural gas. They are made of metal or plastic and vary in terms of valve size, pressure rating, number of ports, and flow. Gas valves are flow... -
Gate Valves - (1164 companies)Gate valves and knife valves are linear motion valves in which a flat closure element slides into the media stream to shut off flow. Gate valves (also known as knife valves or slide valves) are linear motion valves in which a flat closure element...
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Globe Valves - (794 companies)Globe valves are linear motion valves with rounded bodies, from which their name is derived. They are widely used in industry to regulate fluid flow in both on/off and throttling service. As their name suggests, globe valves are linear motion valves...
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Ball Valves - (2115 companies)Ball valves are quarter-turn, straight-through valves that have a round closure element with matching rounded seats that permit uniform sealing stress. The valve gets its name from the ball that rotates to open and close the valve. Ball valves...
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Valve Actuators - (914 companies)Valve actuators mount on valves and, in response to a signal, move a valve to a desired position using an outside power source. Selecting the correct valve actuator will increase uptime, reduce maintenance costs, and increase plant safety. Most...
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Control Valves - (1646 companies)Control valves or proportional valves are power-operated devices used to modify fluid flow or pressure rate in a process system. Control valves are power-operated devices used to automatically modify fluid flow or rate pressure in a process system...
Product News
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DynaQuip Controls
Butterfly Valves The DynaQuip Butterfly Valve line offers the most widely used body and disk materials in the industry. With lug and wafer-style butterfly valves ranging in size from 2" to 24", DynaQuip butterfly valves give you the opportunity to build a valve customized to your needs. (read more)Browse Butterfly Valves Datasheets for DynaQuip Controls -
ValvTechnologies, Inc.
Coking Valves Decrease unscheduled downtime and possible production losses with ValvTechnologies ' coker valves. The delayed coker process is a batch process, one of the most hostile environments in the refinery due to the abrasive and erosive properties of the coke by-product - and is crucial to a refinery 's profitability. Valves are cycled frequently and failure can lead to a complete shutdown of a unit, resulting in large process and financial costs. Optimizing valve life-cycle is critical to operational... (read more)Browse Industrial Valves Datasheets for ValvTechnologies, Inc. -
McWane Plant and Industrial
Mud Valves MPIs NRS style ductile iron/stainless steel mud valves are designed primarily for use in settling tanks of water and wastewater treatment plants. They are available in both ductile iron and stainless steel bodies. Their intended use is to drain tanks for maintenance or cleaning. Mud Valves are furnished with a 2 " square operating nut; however, they can be supplied with optional extension stem or handwheel. The valve uses a Buna-N resilient seat on the plug. The ductile iron/stainless steel... (read more)Browse Gate Valves Datasheets for McWane Plant and Industrial -
Georg Fischer Piping Systems Ltd
Valve Solutions At GF, we provide high-performance valve solutions for the toughest industrial needs. Our portfolio covers many valve types, sizes, and materials, paired with the right actuation for precise control and reliable, efficient operation. We use the latest industrial Ethernet technologies to ensure seamless connectivity and full data transparency. When standard solutions are not enough, our experts create tailored concepts from single components to fully customized assemblies, with integrated... (read more) -
Hamilton Company
Valves - Inert, Ceramic Valves and Positioners Hamilton Company specializes in the design and manufacture of products for manual, semiautomatic, and robotic precision fluid measuring and delivery. Our superior performance valves with ceramic, PTFE, and CTFE inserts provide comprehensive liquid handling for delivering chemically inert flow paths. Rigorous manufacturing controls assure the highest quality precision valves available and are compatible with Hamilton syringe pumps and our modular valve positioners (MVP). Ceramic Valves... (read more)Browse Valve Positioners Datasheets for Hamilton Company -
Automationdirect.com
General Purpose Solenoid Valves and Valve Banks AutomationDirect has added GC Valves solenoid process valves to expand their general purpose valve selection. These valves are simple 2-way or 3-way electrically controlled valves that control fluid flow through a pipe or other process. Supported fluids include compressed air, inert gases, coolant, and water. Several styles support a range of applications, including zero differential, high-performance, piloted diaphragm, and direct-acting valves. They are available in port sizes from 1/8 " to 2... (read more) -
Bonomi North America, Inc.
High-Pressure Ball Valve & Automated Valve Package Bonomi North America Introduces High-Pressure Ball Valves And Automated Valve Packages For Hydraulic Applications. Bonomi North America is introducing a new line of high-pressure carbon steel ball valves for use in hydraulic applications. The new valves come in two-way and three-way configurations with a choice of NPT or SAE thread end connections. Both the two-way valves (3200 Series NPT/3300 Series SAE) and the three-way valves (3400 Series NPT/3500 Series SAE) are available in 3/8-inch... (read more)Browse Ball Valves Datasheets for Bonomi North America, Inc. -
Festo Corporation
Custom Solenoid Valves Festo Corporation manufactures custom solenoid valves to match your specifications. (read more)Browse Solenoid Valves Datasheets for Festo Corporation -
Festo Corporation
Custom Control Valves Festo Corporation manufactures custom control valves to match your specifications. (read more)Browse Control Valves Datasheets for Festo Corporation -
Festo Corporation
Custom Air Valves Festo Corporation manufactures custom air valves to match your specifications. (read more)Browse Air Valves Datasheets for Festo Corporation
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CR4 - Thread: Hopkinson Parallel Slide Valves
Hopkinson Parallel Slide Valves .
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Power Development at the northern end of Quarry Bank Mill, Styal Cheshire
The boiler is described in the tender specification as being 28ft long and 7ft wide and having, amongst other things, o/16inplates; steam, feed, dead weight and Hopkinson 's safety valves ; stand, feed and scum pipes; water and steam gauges to 1201bs pressure.
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Wrong valve causes low level trip malfunction - issue 093
This was a Hopkinson ''boiler valve '' held separately on the plant spares list for some years.
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The Ricardo Story
Among other equipment we acquired a small four-cylinder side- valve en- gine to which we fitted Hopkinson 's indicator.
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Development of `in house' software to support product rationalisation and lead time compression
Hopkinsons Valves was founded in 1843 by Joseph Hopkinson and gained an intemational reputation as a supplier of valves and associated equipment for steam plant.
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Fundamentals of Boiler House Technique
If this happens, the valve must automatically close, and in the Hopkinson 's combined stop and non-return valve this is achieved by not having the valve head fixed rigidly to the spindle.
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Constitutive equation for hardened SKD11 steel at high temperature
and high strain rate using the SHPB technique
Schematic of split Hopkinson bar setup and load of principle; 1–inlet valve ; 2–magnetic outlet valve; 3–gas gun; 4 – barrel; 5–air chamber; 6–strike bar; 7–incident bar; 8–strain gauges; 9 - heating furnace; 10 - transmission bar; 11–plunger; 12–air pipe; 13–time relay; 14–electrical wire; 15–sleeve …
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Long‐term follow‐up after bronchoscopic lung volume reduction treatment with coils in patients with severe emphysema
Furthermore, Hopkinson et al.26 showed that the occurrence of atelectasis following endobronchial valve treatment was associated with prolonged survival at 6 years follow-up.
