PRECISION I RELIABILITY I PERFORMANCE - …

1 Series 1200 Globe Valves Pressure Class ASME 150-600/DIN PN10-100 PRECISION I RELIABILITY I PERFORMANCE06010709081012111302040305161 7181920141521 ContentsSeries 1200 Globe Valves overview 01 Design features & PERFORMANCE benefits 02 Engineering data 02 Valve body style option 04 Bonnet options 04 Standard trim options available 05 Flow coefficients 06 Noise & cavitation control 07 Standard dimensions & weights 08 Derived from the Series 5000 range of globe valves, the Series 1200 range benefits from more than 30 years of in-field experience to deliver cost effective, easily maintained, reliable and high quality valves for the most punishing applications. The wide choice of materials used for manufacture offers bespoke application solutions, while the smooth body flow path reduces turbulence, minimising the effects of erosion and noise. Series 1200 Globe Valves 01 SERIES02 Series 1200 Globe ValvesSeries 1200 Globe Valve Design features Smooth profile cast globe, angle and three way body construction Quick-change trims standard with screwed-in seat option Wide choice of trim sizes available with low noise and anti-cavitation options Robust parts for trouble free service and low maintenance costs Inherently characterised trims available in linear, bi-linear, equal percentage, quick open or semi-throttle Substantial guiding Wide choice of packing systems Integral plug stem construction option Both balanced and unbalanced trim designs with soft seat insert options PERFORMANCE benefits Top-entry servicing with immediate access to plug and seat Reduced inspection and maintenance costs Trims are easily installed Excellent flow capacity and control rangeability Design reduces potential erosion and noise issues Reliable leakage PERFORMANCE .

2 Bubble tight shut off available High interchangeability between sizes and other products Rigorous in-field testing Manufactured to ISO 9001 certification and compliant with PED requirements Low actuating forces required with balanced trim stylesEngineering dataThe Series 1200 range of valves provides a cost effective, reliable and easily maintained control valve capable of working in the most rigorous environments. The quick-change trim option allows easily accessible trim components to minimise fitting and replacement times. Stem-guided contoured trim in both balanced and unbalanced configuration gives excellent rigidity and resistance to vibration and service wear. The valve is designed to accommodate other products within the Severn Glocon range, for example, CC (Concentric Cages) low noise, and anti-cavitation 1200 Globe Valves 03 Engineering data (continued)Design standard ASME PED En ISO 9001:2001 Valve body ratings ASME 150 ASME 600 Body configurationsTwo way globe straight, angle body and three way face to face dimensions ANSI/ISA Bonnet styles Standard and normalising.

3 For other styles please contact us. Standard bonnet packing Teflon/Chevrons and options Stem-guided contoured trim, Quick change, Concentric Cage(s), Multi-step, Micro Spline and Trickle Trim. Inherent trim characteristics Linear, bi-linear, equal percentage, quick open or options Balanced, Unbalanced Cage / Top guided Hard faced or solid hard plugs Soft seat option Plug/Seat Leakage Class ANSI/FCI Class IV as standard, Class V with metal seat and Class VI with soft seat insert. Materials of constructionA wide range of standard materials is available for both the valve pressure containing parts and trim, including carbon and stainless steel, duplex/super duplex and high nickel alloys. Stellite, and other hard facings/coatings are available. For further details on materials please contact us. Paint A wide range of paint finishes are available including enamel, alkyd gloss and various epoxy finishes. Direction of flow Either direction depending upon application.

4 Preferred flow directions are:Contoured unbalanced (1" to 4"): Flow under CC Trim unbalanced (up to 4"): Flow under CC Trim balanced (6",8",10"): Flow under or over Anti cavitation CC Trim: Flow under or over Flashing service: Flow under or over Noise abatement CC Trim (6",8",10"): Flow under Clean build Severn Glocon maintains high clean build standards, utilising clean build areas including Oxygen Clean and a Ultra High Purity Clean Rooms. Inspection and testingSevern Glocon undertakes the highest levels of inspection and testing which meet international and customer A wide range of control instruments is available from Severn Glocon including positioners, air-filter regulators, volume boosters, solenoid valves, and lock-up Series 1200 Globe ValvesValve body style option The Series 1200 valve is available in three basic body styles globe, angle or three way. Apart from the valve bodies, many parts are interchangeable.

5 The angles pattern has an optional venturi seat which provides additional protection for the valve outlet. Globe bodyAngle bodyThree way bodyStandard bonnet This enables the formation of a deep packing box together with a long guide housing, thereby providing a robust and vibration-resistant assembly. Teflon rings are the standard packing up to 250 bonnet Protects the packing from excessive heat or cold, which may adversely affect valve, or packing PERFORMANCE . Application temperature range depends upon the valve and bonnet construction options Usually constructed in the same material as the valve body, selection of the bonnet design is undertaken on the basis of both the operating temperature range and the fluid media handled. A temperature range of -190 C to 580 C is bonnet These are suitable for temperatures up to 580 C when fitted with graphite packing and graphite balancing rings or up to 232 C when fitted with PTFE packing and a PTFE balance seal.

6 Balanced seal installation Balance sealSeal retainer Series 1200 Globe Valves 05 Standard trim options availableUnbalanced trim Soft seat insert Balanced trim Spline Hard facing options CC cage trimStandard duty normal flows Quick Change balanced and unbalanced contoured trim are available. Suitable for modulating and on / off duty. Valve size options Standard range up to 10in. For large sizes please contact us. Plug options Balanced and unbalanced, contoured metal seated. Resilient / soft seat insert option available. Characteristics available Equal %, Linear or Semi-throttle. Others on request. Direction of flow Either direction depends upon application. Hard trim options Hard coatings / facings seat area or full contour. Solid seat and / or plug. Wide choice of materials depends on service conditions. Soft / resilient seating Soft seat insert fully supported and integral within the seat. Standard duty low flows The Trickle Trim / Micro Spline range provides for high rangeability and control of low flow rates.

7 Plug options Unbalanced with metal to metal seating faces. Direction of flowEither direction depends upon guided. Severe service dutiesSingle / Multiple Concentric Cage (CC) trims are available for higher pressure drop applications to prevent the onset of cavitation and to reduce noise levels. 06 Series 1200 Globe ValvesFlow coefficients CvThe Cv values detailed in the tables are at the maximum rated travel and stated in US units. The figures by definition are related to the flow of water (Specific gravity = 1) in US Gallons per minute with a pressure drop Cv values mentioned below are normal. Please contact us for process Cv over 80% of the rated Cv. Table 2: Contoured and multi-step trimsTable 3: Single stage cage trimsTable 3: Double stage cage trimsNote: Multi-step trim options are indicated in green. For other options please contact us. Table 1: Trickle trimsNote: These trims are available with only linear flow/lift characteristics Valve size Available trim Cv in mm ASME 150, 300, 600 1 25 Valve size Available trim Cv in mm ASME 150, 300, 600 1 25 1 4 6 9 12 1 1/2 40 1 4 6 9 12 16 20 25 2 50 1 4 6 9 12 16 20 25 30 35 46 3 80 15 25 30 46 75 99 4 100 25 46 75 110 135 195 Valve size Available trim Cv in mm ASME 150, 300, 600 1 25 2 4 6 9 121 1/2 40 9 12 16 25 2 50 12 25 30 35 46 3 80 30 46 75 99 4 100 75 110 135 170 6 150 130 200 240 300 35 8 200 300 400 500 600 10 250 400 550 825 Note: For valve and trim sizes outside this range please contact us.

8 Note: For valve and trim sizes outside this range please contact us. Valve size Available trim Cv in mm ASME 150, 300, 600 1 25 2 4 6 1 1/2 40 9 15 2 50 16 25 3 80 22 30 4 100 40 75 100 6 150 75 130 175 8 200 200 350 10 250 420 550 Series 1200 Globe Valves 07 Noise & cavitation control As a fluid passes through a restriction, such as the trim in a valve, a pressure reduction and subsequent velocity increase takes place. The point of lowest pressure and highest velocity that occurs immediately after the restriction is called the vena contracta, after which the pressure recovers and the fluid velocity is reduced. The trim design has a great influence on the amount of recovery. In the case of liquids, if the pressure at the vena contracta goes below the liquid s vapour pressure, bubbles are formed.

9 If the subsequent pressure recovery to P2 (downstream pressure) exceeds the fluid s vapour pressure the vapour bubble collapses or implodes so called cavitation. This can occur within the valve, or in the downstream pipe work. The energy dissipated can cause extensive damage to both the valve and the pipe work. If the pressure recovery stays below the fluid s vapour pressure then flashing occurs. Multi-stage pressure let down or anti-cavitation valve trim designs enable the required pressure drop across the valve to be achieved in a number of stages as illustrated in above velocity of the fluid through the valve has a major influence on the erosive effect of the fluid on the valve body and trim, so the control of fluid velocity and the appropriate selection of materials is critical to the valve PERFORMANCE and service life. Higher fluid velocities, particularly in gas service, can generate noise in the valve and pipe work thus velocity control is major factor in containing noise emissions within acceptable limits (normally <85 dBA).

10 Severn Glocon s valve trim designs, engineered for specific applications, may include a combination of Multi-stage pressure reduction stages Tortuous paths as the fluid changes direction, energy is dissipated Flow impingement of one flow path onto another also causes energy loss Through our World Class Engineering Intelligence, Severn Glocon can provide the ideal trim solution having considered the process control conditions and the preferred flow direction, as well as initial and life cycle of cavitation control using multistage low recovery trim P1P2P2 PvPvc1st stage2nd stage3rd stageThree stage low recovery valve trimCavitating flowVapour pressureVena contracta pressureFlashing flowFLOW PATHPRESSURES ingle stage high recovery valve trim08 Series 1200 Globe ValvesStandard dimensions & weights1200 Series valve fitted with W Series Actuator1200 Series valve fitted with W Series Actuator with side mounted HW Table 4: Dimensions of standard 1200 unbalanced valve with W Series Actuator Valve ACT Stem DIM "A" DIM Approx.