Author: fmcvalve

Introduction to Valves – Pressure Seal Valves

PRESSURE SEAL VALVES Pressure seal construction is adopted for Valves for high pressure service, typically in excess of above 170 bar. The unique feature about the pressure seal Bonnet is that the body-Bonnet joints seals improves as the internal pressure in the Valve increases, compared to other constructions where the increase in internal pressure tends to create leaks in the body-Bonnet joint. ...

THE 4 TYPES OF BALL VALVES – SINGLE BODY, SPLIT BODY, TOP ENTRY AND WELDED

There are four general body styles of ball valves: single body, split body, top entry, and welded. There are four general types of ball valves: full port, standard port, reduced port, and v port A full port ball valve has an oversized ball so that the hole in the ball is the same size as the pipeline resulting in lower friction loss. Flow is unrestricted, but the valve is larger. A standard port b...

Main Difference between floating ball valve and trunnion ball valve

Ball valve could be divided into two types according to the ball working principles, floating ball valve and trunnion mounted ball valve. So what’s the difference between floating ball valve and trunnion mounted ball valve ? You would be able to choose which to use for your real condition after knowing below details. Let’s go. Appearance 1. If you see a ball valve with a down trunnion, it must be ...

What is the difference between a gate and a globe valve?

Gate Valve In gate valve, a gate slides between the seats of the valve. Movement of the gate is at right angle to the flow of fluid. By opening the valve, flow path is enlarged in a highly non-linear manner with respect to percentage of opening. Gate valve is normally used for isolation application where only fully close or fully open position is required. this valve is suitable where frequent ope...

Is a Metal-seated Ball Valve for You?

Metal-seated ball valves were first introduced to the market to address many of the shortcomings of their soft-seat counterparts. The ability to withstand severe service conditions such as high temperatures, cryogenic conditions, abrasive mediums, slurries, and flow control make them ideal candidates for the use in 0il refinery, petrochemical, mining, pulp and paper, iron and steel mill, electric ...

Introduction to Valve – Bellow Seal Valve

BELLOW(S) SEAL(ED)S Leakage at various points in pipelines found in chemical plants creates emissions. All such leakage points can be detected using various methods and instruments and should be noted by the plant engineer. Critical leakage points include flanged gasket joints and the f / pump gland packing, etc. Today the chemical process industry is gearing itself towards safer technology for be...

Introduction to Valves – Check valves

CHECK VALVES Check valves are “automatic” valves that open with forward flow and close with reverse flow. The pressure of the fluid passing through a system opens the valve, while any reversal of flow will close the valve. Exact operation will vary depending on the type of Check valve mechanism. Most common types of Check valves are swing, lift (piston and ball), butterfly, stop and ti...

How Do Check Valves Function, And Why Would They Be Selected Over Other Valve Types?

Also known as non-return, one-way, and clack valves, check valves are different from other types of valves in their ability to pass fluid in solely one direction. This sort of function is essential for a variety of safety applications, as well as for preventing overflow. How Check Valves Function Operating on a two-port system, check valves have an opening where fluid or gas is drawn in to the fir...

Super high pressure valve Market Research Report Now Available at Research Corridor

Research Corridor has published a new research study titled “Super high pressure valve Market – Growth, Share, Opportunities, Competitive Analysis and Forecast, 2015 – 2022”. The Super high pressure valve market report studies current as well as future aspects of the Super high pressure valve Market based upon factors such as market dynamics, key ongoing trends andsegmentation analysis.Apart from ...

BELLOWS SEAL GLOBE VALVE (OS & Y , FLANGED TYPE)

BELLOWS SEAL GLOBE VALVE (OS & Y , FLANGED TYPE) > Design and Struction ● Zero emissions, fire safe construction ● Helium leak testing ● Guaranteed long bellows life with qualification test, cycle life Min. 3000cycles depending on working conditions ● Low emissions secondary sealing – Graphite gland packing – Backseat in open position ● Full thickness connect welding ● Welded or bolted bonn...

FORGED STEEL GATE VALVE

FORGED STEEL GATE VALVE – WELDED & BOLTED BONNET – REDUCE & FULL PORT > Overview ● API602, API6D, API607, ASME B16.34 & ISO15848 ● Testing according to API 598, ASME B16.34 ● Marking MSS-SP-25 ● Outside Screw and Yoke (OS & Y) ● Rising Stem, Non-rising Handwheel ● Body Bonnet Weld to ASME Section IX ● Socket Weld Ends to ASME B1.20.1 ● Butt Welding Ends to ASME B16.25 ● Body The...

Standard Reference List

Standard Reference – Manufacturers standardization society of the Valve & Fitting (MSS) – Society of Automotive Engineers(SAE) – American Water Works Association(AWWA) – American Iron and Steel Institute(AISI) – American Petroleum Institute(API) – British Standard(BS) – Korean Industrial Standard(KS) – Russia Standard(GOST) – Deutsches Institute for Norman(DIN) – Committee European De Normaliz...

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