For lpgas service, a hydrostatic relief valve type h124 or a vent valve can be installed in this outlet. The same level of care and caution is recommended in dealing with the maintenance of said valve, and there are steps that you could take if you want to make sure that your gate valve is functioning as best as it should, all. Globe valves types, construction, applications and advantages. Lift check valves cannot be used for vertical piping. However, the flow of the fluid is limited from the ground upward when setup in vertical piping. These products are extremely admired in the industry owing to their characteristics and low prices. Globe valves for assembly in the field catalog page lit1900064 20200429 vg2000 description vg2000 series cast iron flanged globe valves are designed primarily to regulate the flow of water and steam in response to the demand of a controller in hvac systems.
Velan forged steel gate, globe and check valves have been proven in critical service applications for over 50 years. Market segment commercial valves industrial valves severe ball valves. C the honeywell globe valve is designed for easy maintenance with a quick change. Again the orientation of the butterfly determines the flowrate. The standard threeway diverter valve is designed to accept. Dismantling and servicing instructions for gate valves. This type of valve has seats in a plane parallel or inclined to the line of flow. However, instead of a ball mounted in the valve body a circular disc called a butterfly because the two half circles around the vertical shaft appear like wings. Using the valve halfway open or closed may damage valve or surface of the valve seat. The valve is shipped with end protectors on the inlet and outlet which should stay on the valve until it is ready for installation. Open the cover plate by removing bodycover studnuts. Globe valves are used mainly for steam or other media where a throttling service is required. Globe valves consist of a movable disktype element and a stationary ring seat in a generally spherical body.
Vg2000 series cast iron flanged globe valves, maintenance. It illustrates the different parts of a globe valve with an illustration. Class 900 and above globe valves consist of a ring type joint. The globe plug can be at any position between fully opened and fully closed to control flow through the valve. Masoneilan 28000 varipak masoneilan 80000 3way control. In larger sizes, hinge pin projects out of body to accommodate balance weight or dashpot arrangement. This third edition is a complete revision and update that includes vital information on control valve performance and the latest technologies. Vg2000 series cast iron flanged globe valves for assembly. Newcooic cast valves operation and maintenance manual page 2 2. In pressure seal designs the sealing is achieved through a gasket that takes advantage of the internal pressure of the line. Preface control valves are an increasingly vital component of modern manufacturing around the world. Rugged bolted construction, 316 stainless steel ball and stem, and nace standard. Maintenance dismantling and servicing instructions for check valves.
When open, the media will flow with minimal turbulence and pressure drop through the valve. Kvt s hifluidic forged and cast steel globe valves. Swing check valves can be used for horizontal and vertical piping. Working with the oem gives you confidence because we design and manufacture all elements of the valve systemfrom installation through maintenance and critical spares stocking and. Chapter 8 details typical control valve installation and maintenance procedures. Spindle is engaged in the yoke nut on the bonnet top by suitable threading. Gate valves are designed tooperate in a fully open or fully closed position. For the fluid to maintain the specified pressure after passing the valve and to prevent noise or vibration by turbulent flow, the straight pipe length at the valve exit must be at least 3 to 5 times the pipe. This item is related to item 1 but is actually far more important for maintenance. Velan is a world leader in the design and production of a wide range of cast and forged steel gate, globe, check, ball, tripleoffset butterfly, knife gate, highly engineered severe service valves, and steam traps offering superior performance across all major industrial applications. Comb ning forged components of globe valves for the usual needle b eed valve and the various options of the ball valve modules we offer valves.
The catalog number is described on the upper right corner of the back side. Vertical movement of disc along with spindle is governed by rotation of hand wheel, directly fitted on spindle. It explains the maintenance procedures, the dismantling, overhauling, and the assembly of the valves. Components of the globe valve are similar to those of the gate valve.
Only experienced, trained personnel should install, operate, and perform maintenance on all valves. Vogt gate valves are availablewith a variety of bonnet types, body and trim materials and stem packings in addition to a broad range of pressure classes, and end connections including extended bodies. The disc is designed to completely stop flow and form a tight seal with pressure under the disc. The design and features incorporated in the watts acv valves assure accurate control, dependable performance, and long life. Globe valves are designed to throttle the flow where certain pressure drop is permitted in a pipeline. Loosen the bodybonnet joint studnuts and remove from body, loosen the eye bolt nuts, rotate the hand wheel in clockwise direction. Unscrew the bolting joining the body and the connectors. Operation manual globe valves series 112121125140 zuercher. A guide to types of valves introduction a valve is a device that regulates the flow of gases, liquids or loose materials through an aperture, such as a pipe, by opening, closing or obstructing a port or passageway. Properly selected and maintained control valves increase efficiency. The disc is attached to the spindle by selfaligned swiveling joint. V4 table of contents vg series threeway, stainless steel trim, npt end connections ball valves with springreturn electric actuators with.
Ball valves floating series s threaded grooved a threaded grooved end valve available in pressures up to 3000 psi wp. Installation, operation and maintenance manual valve repair. Industrial valve manufacturer valve company powell valves. New tech volves new tech valves is engaged in manufacturing the best of industrial piping products such as gate valves, globe valves, check valves, ball valve and many more. Gate valves, check valves, globe valves, nonreturn valves, dualplate check valves, and high performance butterfly valves. It also discusses the different procedures by which the globe valve should be tested.
With the most complete multiturn product line for a single source manufacturer, our valves are produced to the. Warren manufactures a highquality valve, designed to meet industry standards, satisfying the strict requirements of petroleum refineries, chemical plants, upstream, midstream and gas transmission applications. Parker manually, pneumatically, and electrically actuated threeway b series ball valves may be used as diverting or selecting valves for fluids utilized in process and instrumentation applications. The valve stem moves a globe plug relative to the valve seat. Conventional globe valves may be used for isolation and throttling services. Lit1900098 issued january 15, 2008 maintenance and repair parts valve reconditioning kits code number description ship weight lb1 1. All valves have a nonrestricted, 14 fnpt plugged boss in the downstream side of the body. The control valve handbook has been a primary reference for more than 30 years. Apollo engineering team sponsors uncc student project. This manual shall be read in conjunction with manual ltvdep566, instruction, operation and. The ball valves are bidirectional valves that allow flow in either direction.
If valves are to be stored before installation, the following should be observed. We manufacture and supply any type of ball valves, butterfly valves, check valves, actuated valves and flush bottom. For the fluid to maintain the specified pressure after passing the valve and to prevent noise or vibration by turbulent flow, the straight pipe length at the valve exit must be at least 3 to 5 times the pipe diameter. Class 150 to 600 globe valves consist of a circular malefemale connection with a graphite or spiral wound gasket. Newco forged valves operation and maintenance manual page 2 2. Globe valve globe valve comprises of round shape taper or regulating type disc. Butterfly valves use a similar principle to ball valves. Severe wet sour gas service in addition to nace mr0175, the additional qualifications can be.
Installation, operation and maintenance manual for power ball valves rev. A valve controls system or process fluid flow and pressure by performing any of the following functions. Not suitable for fluids containing mineral oils, steam or fluids liable to. Open two bracket bolts and take out assembly of hinge, bracket and disc. Today velans comprehensive range of api 602 gate, globe, check, angle, and bellows seal valves remain the leading choice for high performance in virtually any industrial application. Cast iron flanged globe valves, maintenance and repair code no. As a leading industrial valve manufacturer, we offer a wide range of products. Chapter 1 offers an introduction to control valves including definitions for common control valve and instrumentation. This article is about globe valves, the different types of valves, their characteristics and classifications. Catalog and application manual valves flowserve pdf.