GLOBE 2 WAY CONTROL VALVE SERIES - 110

Transcription

1 ACAD/PVCT/PVCT - 1 GLOBE WAY CONTROL VALVE SERIES - 1 INTRODUCTION This type of Valve with its classic globe body shape, which reflects its name, uses the variable area generated between the plug and seat to control fluid flow. It is very versatile offering reduced trim options as well as a variety of special trims for severe high pressure drop applications. This style of valve is easily adapted for use on cryogenic temperatures and for high temperature duties. This valve is preferred for tight shut off, positioning accuracy, high rangeability and simplified maintenance, satisfy the majority of control valve applications throughout the process and power industries in control of Air, Steam, Water, Gas, Chemicals etc. SPECIFICATIONS DESIGN : ASME B1- VALVE SIZE : 1 to mm ( 1/ to ) RATING : to 0 or Equivalents to BS, DIN, etc. FACE FACE : ISA S.7.0 up to 00# ISA S.7.1 0# and above END CONNECTION BODY MATERIALS : Flanged, Screwed, Butt Weld, Socket weld. : Carbon Steel, Chrome-moly Steel, Stainless Steel, Monel, Alloy, Hastelloy B/C, Duplex Stainless Steel, Aluminum Bronze, PP, PTFE etc. : PTFE Lined / PTFE Metal Housed BONNET : Standard upto C : Normalizing (Finned) between C to 00 C : Extended cold service - C to - 0 C : Cryogenic - 0ºC to - ºC : Bellows seals. GLAND PACKING TRIM DESIGNS TRIM MATERIALS CHARACTERISTICS SEAT LEAKAGE ACTUAR TYPE ACTUAR ACTION : Grafoil / PTFE V Rings, Low Emission : Top Guided Contoured, Splined Micro Flow, V-Ported (Balanced / Unbalanced), Low Noise ( LN1, LN, LN, LN ) : Stainless Steel, Alloy, Monel, Duplex Stainless Steel,1% Chrome Steel Hastelloy B/C, Stellite (Alloy ) : Equal Percentage, Linear and Quick Opening. : As per /FCI-- Class III. IV, V and VI (STANDARD LEAKAGE RATES) Metal to Metal Seating Class IV, Less than 0.01% of rated Cv. Metal to Soft Seating Bubble tight (Zero Leakage) : Diaphragm, Piston or Electric. : Direct / Reverse Acting. : Nitrile / Neoprene. SPRING RANGES : 1 PSIG ( Kg/cm² ) : 0 PSIG ( 0..0 Kg/cm² ) AIR SUPPLY : PSIG (1.. Kg/cm² ) AIR CONNECTION ACCESSORIES : 1/ or 1/ NPT : Valve Positioner - Pneumatic, Electro Pneumatic, Smart Positioner. Instruments- Airset, Solenoid Valve, Air Lock, Volume Booster, Position Transmitter, Limit Proximity Switches etc. Features- Top or Side Mounted handwheel, Limit Stops Removable Blind Head, Steam Jacketing, etc. CONTROL VALVE WITH REVERSE ACTUAR CONTROL VALVE WITH DIRECT ACTUAR 01/1 Page 1 of PVCT-1

2 DESIGN FEATURES >> High flow capacity and rangeability. >> Large variety of Trim design. >> Top entry for ease of inspection and maintenance. >> Tight closing for reliable control even when changes in pressure / temperature are sudden and extreme. >> Bolts located outside of the piping stress area to eliminate gasket crush problems, >> Wide selection of actuators to meet most system requirement. >> Rigorously proven on-site performance. QUALITY AND PERFORMANCE GUARANTEE >> Produced with Quality Systems accredited to ISO 01 : 0 by Bureau Veritas and CE marked in accordance to Pressure Equipments Directive and Regulations by Lloyd s Register. >> Full material certification available for all major component Parts. >> Full guarantee on design and Performance. >> All testing performed to the requirements of ASME B1.. RANGEABILITY The Inherent rangeability of Pneucon standard trims is as given under. ins TRIM SIZE mm Spline micro trim STANDARD RANGEABILITY CONURED LR trim Multi Stage trim 1/ and / 1 and 0:1 : 1 : 1-1 to to 0 0 : 1 0 : 1 : 1 : 1 to 0 to - 0 : 1 : 1 0 : 1 1 to 0 to 00 - : 1 0 : 1 0 : 1 MAXIMUM RECOMMENDED VALVE BODY VELOCITY FOR LIQUID FLOWS Trim style Contoured VALVE BODY MATERIAL VALVE SIZE CARBON STEEL ALLOY STEEL Aluminium bronze Ins mm m /s m /s m / s 1/ to 1 to to 0 to ACAD/PVCT/PVCT - 1 Cage Guided 1 to to to 0 to MAXIMUM RECOMMENDED VALVE BODY VELOCITY FOR GAS/VAPOUR FLOWS Trim Style Contoured VALVE SIZE MAXIMUM Inlet velocity MAXIMUM Outlet velocity Ins mm m /s m /s MAXIMUM OUTLET MACH No. for predicted noise level >9db a <9dba <dba 1/ to 1 to and 0 and and to Cage Guided 1 to to /1 Page of PVCT-1

3 ` The Inherent flow characteristic of a CHARACTERISTIC CURVES control valve is the relationship between the flow and the lift of the plug at constant pressure drop. The characteristic normally available are shown as below. LINEAR:-Flow is directly proportional to valve lift. EQUAL%:-Flow change by a constant percentage of its instantaneous value for each unit of valve lift. FLOW CO-EFFICIEENT (Cv) QUICK OPENING LINEAR EQUAL % QUICK OPENING:-Flow increases rapidly with initial travel reaching near its maximum at a low lift VALVE LIFT % OF FULL LIFT VALVE FLOW CO-EFFICIENT / LIFT RELATIONSHIP EQUAL % CONURED TRIMS M AXIM UM Cv V ALUE (U.S. UNIT S) T RIM SIZE 0 " 10 1" 10 " 9 " " " " " ACAD/PVCT/PVCT - 1 FLOW C0 EFFICIENT (Cv) U.S. UNITS /" 0. 1/1" MICROSPLINE No. A 0.7 B 0.0 C 0. D 0.0 E 0.1 F 0.07 G 0.00 H 0.0 I 0.00 J 0.01 K L M 0.00 N O P Q R VALVE LIFT % OF FULL Cv ".1/" " " 1.1/" 1" /" 1/" /" 1/" /1" 01/1 Page of

4 01/1 Page of VALVE SIZING CO-EFFICIENT Cv RATING - # 0# VALVE SIZE TRIM SIZE LOW NOISE TRIM ( GAS ) Ins mm Ins mm LN1 LN LN LN / / 1/ / / / 1.1/ / 1.1/ / /

5 01/1 Page of VALVE SIZING CO-EFFICIENT Cv RATING - # 0# VALVE SIZE TRIM SIZE CONURED & V-PORT TRIM LOW NOISE TRIM ( LIQUID ) Ins Ins EQUAL % & LINEAR QUICK OPENING (ON-OFF) LN1 LN LN LN mm 1.1/ / 1/ / / / 1.1/ / 1.1/ / /

6 VALVE TRIMS : STANDARD RANGE CONURED TRIM METAL METAL CONURED TRIM SOFT SEATED CONURED TRIM ( Metal to Metal & Soft Seated ) The Contoured Trim is the standard Top Guided top entry, which provides sure, economical Control for intermediate pressure drop service. A large diameter, precision machined plug and a pressed in, hardened guide bushing constitute the basic elements of a plug guidance system. Contoured trim available for both modulating duty and on/off duty. The contoured trim configuration available for both metal to metal contact and soft seat to metal contact to give leakage rate in accordance to FCI-.0 class VI ( B 1. class VI.) ACAD/PVCT/PVCT - 1 V 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 seal materials provides fluid compatibility. MICRO FLOW SPLINED TRIM (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 minute flow rates. 01/1 Page of PVCT-1

7 LN 1 SINGLE STAGE LOW NOISE LN DOUBLE STAGE LOW NOISE LN TRIPLE STAGE LOW NOISE LN FOUR STAGE LOW NOISE LOW NOISE TRIM ( Metal to Metal and Soft Seated ) ACAD/PVCT/PVCT - 1 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 LN1 sutiable for flashing duty. PVCT-1 01/1 Page 7 of

8 ACTUAR SELECTION GUIDE Valve Size Inches 1 " & & & mm & & 0 & 00 STD TRAVEL 1.1/ /(mm) /(mm).1/ /(7mm).1/ /(mm) Trim Size Inches /1 ¼ ⅜&½ ¾&1 1 1¼ 1 ½ ½ ½ mm. &1 & Act. Size Load Kg/cm² SHUFF PRESSURE ( Kg / cm² ) UP 00# (Flow Under The Plug) UB B N/A N/A N/A N/A UB B N/A N/A N/A N/A UB B N/A UB B N/A UB B UB B UB B UB B UB B 0 0. UB B UB: P VALUES FOR CONURED / V-PORTED UNBALANCED TRIM GUIDE BONNET AND GLAND PACKING SELECTION : B: P VALUES FOR LOW NOISE / V-PORTED BALANCED TRIM RECOMMENDED SERVICE NOT RECOMMENDED SERVICE PACKING MATERIAL GRAFOIL PTFE CHEVRON ALL SERVICES EXECPT STRONG OXIDIZERS. LUBRICATION IS NOT REQUIRED RESISTANCE MOST KNOWN CHEMICALS LUBRICANT NOT REQUIRED ACAD/PVCT/PVCT - 1 BONNET STANDARD NORMALIZING (FINNED) EXTENDED CRYOGENIC COMMON SERVICE CONDITION PROVIDES GLAND-PACKING PROTECTION IN ARDUOUS TEMPERATURE CONDITIONS PVCT-1 01/1 Page of

9 ACTUAR DIMENSIONS HA HA1 HA HA HA HA ACTUAR DIRECT ACTING PDO ACTUAR REVERSE ACTING PDC ACTUAR WITH P MOUNTED HANDWHEEL DIRECT ACTING PDO ACTUAR WITH P MOUNTED HANDWHEEL REVERSE ACTING PDC ACTUAR WITH SIDE MOUNTED HANDWHEEL DIRECT ACTING PDO ACTUAR WITH SIDE MOUNTED HANDWHEEL REVERSE ACTING PDC ACTUAR MODEL EFFECTIVE Inch BONNET MOUNT DIA. TRAVEL ФD HA HA1 HA HA HA HA PDC PDO PDC PDO PDC PDO PDC PDO PDC PDO PDC PDO PDC PDO PDC PDO PDC PDO PDC PDO PDC PDO ACAD/PVCT/PVCT - 1 PDO - Direct Acting Actuator ( used on supply failure Valve Opens ) PDC Reverse Acting Actuator ( used on supply failure Valve Closes ) All dimensions in mm. The Company s policy is one of continuous product improvement and the right is reserved to modify the specifications contained herein without notice PVCT-1 01/1 Page 9 of

10 Z H H H L L L ACAD/PVCT/PVCT - 1 VALVE SIZE F/F VALVE WITH STANDARD BONNET (NP,1 BS-- D,E) 00 (NP, BS-- F,H,J) H1 00 (NP,0 BS-- K,R) STEM IN UP POSITIO N BONNET MOUNT DIA HEIGHT FROM CENTER LINE STANDARD NORMALI BELLOW ZING # The Company s policy is one of continuous product improvement and the right is reserved to modify the specifications contained herein without notice. 01/1 Page of F/F Plot No: A-, Road No.,Wagle Industrial Estate, Thane 0 0, India. Phone: +9 71, 7, Fax : info@pneuconvalves.com Web: www. pneuconvalves.com IN TECHANICAL COLLABORATION WITH VALVE SOLUTIONS LTD. U.K CENTR LINE BASE 00# Inch mm FACE FACE (F/F) H Z L H1 00# 1/ / H1 STEM TRAVEL / F/F VALVE WITH BELLOW SEAL BONNET UKAS QUALITY MANAGEMENT H1 VALVE WITH NORMALIZING BONNET PVCT-1 Designed By : Rajesh

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