Series 110 Globe Control Valves

Transcription

1 Series Control Valves Series Globe Control Valves This type of control valve with it s globe body shape, uses the variable area generated within the control valve trim to control fluid flow. Designed in accordance with ASME, it is single seated with unbalanced or balanced trim configurations and can be supplied with a wide variety of trim design options. The valve can provide good positional accuracy, high rangeability and simplified maintenance. It satisfies the majority of control applications throughout the process and power industries. Service backed by Experience

2 Series Control Valves Specification Design Code ASME Valve Size to 00 mm (/ to ) Rating ANSI to 00 or equivalents to DIN, S, JIS etc End Connection Flanged, Hubbed, utt weld, Screwed ody Material Carbon steel, Chromemoly steel, Stainless steel, Monel, Alloy 0, Hastelloy /C, Duplex stainless steel, Aluminium bronze onnet Standard up to 00 C Normalising between 0 C to 0 C Extended cold service 0 C to 0 C, Cryogenic 0 ºC to 0 ºC ellowseal Gland Packing Trim Form PTFE Chevrons, Graphite, Low emission Top guided contoured, Spline Micro Flow Ported cage (unbalanced / balanced) Low Noise (LR, LR, LR, LR) Trim Material Stainless steel, Duplex stainless steel, % Chrome steel, Monel Hastelloy /C, Stellite Flow Characteristic Equal percentage, Linear, Quick Opening Seat Leakage Actuator Form Actuator Type Diaphragm As per ANSI / FCI 000 Class III, IV, V and VI Diaphragm, Piston or Electric Direct / Reverse Acting Nitrile / Neoprene (nylon reinforced) Accessories Valve Positioners Pneumatic, ElectroPneumatic, Smart Instruments Airset, Solenoid Valve, Volume ooster, Airlock, Limit Switches Features Top or Side Mounted handwheel, Limit Stops Removable lind Head, Steam Jacketing etc. Design Features Quality and Performance Guarantee High flow capacity and rangeability. Large variety of trim designs. Top entry for ease of inspection and maintenance. Designed with clamped seat and trim configuration. Unbalanced or balanced plug design options to achieve specified leakage requirements. olts located outside of the piping stress area to eliminate gasket crush problems. Wide selection of actuators to meet most system requirements. Produced with Quality Systems accredited to ISO 00:00 CE marked in accordance with European Pressure Equipment Directive //EC and ATEX compliant with European directive //EC. Full material certification available for all major component parts. Rigorous proven onsite performance. Full guarantee on design and performance. All testing performed to the requirements of ASME.. Series : Control valve with standard bonnet and reverse acting actuator Series : Control valve with standard bonnet and direct acting actuator Valve Solutions tel: 0 fax: 0 enquiry@valvesolutions.co.uk web:

3 Series Control Valves Characteristic Curves 0 0 The Inherent flow characteristic of a control valve is the relationship between the flow and the lift of the plug at a constant pressure drop. 0 The characteristics normally available, are shown. Flow coefficient (Cv) QO LIN Equal % Linear Flow is directly proportional to valve lift. Equal % Flow changes by a constant percentage of its instantaneous value for each unit of valve lift. Quick opening Flow increases rapidly with initial travel reaching near its maximum at a low lift Valve lift % of full lift Rangeability Trim size Standard rangeability ins mm Spline micro trim Contoured trim LR trim Multi stage trim / and / and 0 0 : 0 : : to to : : : 0 : to 0 to 00 0 : : : to to 00 0 : 0 : : Maximum Recommended Valve ody Velocity for liquid flows Trim style Contoured Cage Guided Valve body material Valve size Carbon steel Alloy steel Aluminium bronze ins mm m/s m/s m/s / to to..0.0 to to to to to to Maximum Recommended Valve ody Velocity for Gas/Vapour Flows Trim style Maximum Maximum Maximum outlet mach No. for Valve size predicted noise level Inlet velocity Outlet velocity ins mm m/s m/s >da <da <da Contoured Cage Guided / to to and and 0 0 and to 00 to to Service backed by Experience

4 Series Control Valves Valve Trims Standard Range Contoured trim Metal to Metal Contoured trim Soft Seated Contoured trim (Metal to Metal and Soft Seated) The contoured trim is the standard configuration for benign pressure drop service. A large diameter, precision machined plug and hardened guide bush provide the basic elements of a heavy top guided construction. Contoured trim available for modulating and on/off duty. The contoured trim configuration is available with metal to metal contact and soft seat options. Ported trim Metal to Metal or Soft Seated Ported cage trim is a heavy duty cage guided design with the option of pressure balanced configuration. Choice of elastomer seal materials provides fluid compatibility. Spline Micro Metal to Metal or Soft Seated This design of trim is a seat guided arrangement having a very high rangeability and designed for the accurate control of small flow applications. Valve Solutions tel: 0 fax: 0 enquiry@valvesolutions.co.uk web:

5 Series Control Valves Valve Trims Standard Range LR Single Stage Low Pressure Recovery LR Double Stage Low Pressure Recovery LR Triple Stage Low Pressure Recovery LR Four Stage Low Recovery Low Recovery trim (Metal to Metal and Soft Seated) All the advantages of ported cage trims. Multiple drilled orifices of a special size and spacing resulting in reduced noise levels compared to conventional valve trims. Added advantage on liquid duty valves by preventing cavitation damage. Low pressure recovery characteristic of LR suitable for flashing duty. Service backed by Experience

6 Series Control Valves Guide to onnet and Gland Packing Selection Graphite PTFE Chevron Standard All services except strong oxidisers lubrication is not required Resistance to most known chemicals Lubrication not required Common service condition Normalising Provides glandpacking Protection in high temperature conditions Extended Cryogenic Temperature o C Valve Sizing Coefficient / Cv Rating (Valve Sizes up to (mm) Valve size Trim size Contoured Quick Low noise LR ins mm ins equal%/linear opening Equal Linear / / / /.0 /.00 / 0 / / / / / / / / / / / / /.00 / / / Valve Sizing Coefficient / Cv Rating (Spline Micro Trims) ins / / Valve size mm 0 Trim size Modified ins equal % No. A No. No. C No. D No. E No. F No. G No. H No. I No. J No. K No. L No. M No. N No. O Valve Solutions tel: 0 fax: 0 enquiry@valvesolutions.co.uk web:

7 Series Control Valves Valve Sizing Coefficient /Cv Rating (Valve Sizes / to (0 to mm)) Valve size Trim size Contoured & Ported Cage Low noise LR ins mm ins mm Equal % & linear Quick opening Equal % & linear./ 0 0./ 0./ 0 0././ 0 0./ 0././ 0./ / Note: CV values are for valve ratings up to and including ANSI Class 00 for higher ratings consult Valve Solutions Service backed by Experience

8 Series Control Valves Valve Sizing Coefficient / Cv Rating LR Trims Valve size Trim size Liquid duty flow over the plug Gas duty flow under the plug ins mm ins Equal Linear Equal Linear Valve Sizing Coefficient / Cv Rating LR Trims Valve size Trim size Liquid duty flow over the plug Gas duty flow under the plug ins mm ins Equal Linear Equal Linear Note: CV values are for valve ratings up to and including ANSI Class 00 for higher ratings consult Valve Solutions Valve Solutions tel: 0 fax: 0 enquiry@valvesolutions.co.uk web:

9 Series Control Valves Actuator Selection Guide valve size ins mm //, 0, 0,, 00, 0, 00 trim size ins mm /. / /, /, /, 0, / / 0 / / act. size load ar shutoff pressure in (bar) 0. U U U 0 0 / / mm travel 0. U 0. U U U / / mm travel 0. U 0 0 / /mm travel 0. U U U U / / 0mm travel 0. U U U U U U U U.... U P values for contoured / ported cage unbalanced trim P values for low noise / ported cage balanced trim Service backed by Experience

10 Series Control Valves Control Valve Standard Dimensions H Z H H L L L G G G Valve with Standard bonnet F F Valve with Normalising bonnet F Valve with ellow seal bonnet Valve size ANSI PN, SD,E ANSI 00 PN, 0 SF, H, J ANSI 00 PN, 0 SK, R Stem in up onnet mount Height from centre line position dia Standard Normalising ellows Centre line to base Stem travel inch mm Face to Face (F) H Z L G / / / 0... / Valve Solutions tel: 0 fax: 0 enquiry@valvesolutions.co.uk web: