Design D4 Control Valve

Transcription

1 Product Bulletin Design D4 Control Valve D4 Valve The Design D4 control valve is a compact, rugged globe valve designed primarily for high-pressure throttling applications. This valve is ideal for use on pressure and flow control applications within the oil and gas production industry. The Design D4 valve also makes an excellent dump valve for high-pressure separators and scrubbers. These valves are especially useful for either throttling or on/off control of liquids or gases which are gritty, sticky, or which have a tendency to build up on internal valve parts. If the control valve requires maintenance, the trim and packing can be maintained by removing the patented deep-bore hammer nut and lifting the actuator/bonnet assembly off the valve without disassembling the actuator. Features Safer Bonnet / Valve Body Connection Unique design provides additional protection if disassembly of bonnet/valve body connection is inadvertently started while there is still pressure in the valve body. Heavy-Duty Construction Massive guiding (figures 2 and 3) positively aligns the valve plug in the seat ring for high pressure drop applications. The screwed-in seat ring completely encloses the seat ring gasket. Severe Service Capability Valve is available with S41600 or S31600/alloy 6 trim for service in erosive or corrosive applications. The valve plug is also available with a tungsten carbide tip and the seat ring can be fitted with a full-bore tungsten carbide insert for erosive service. Low Temperature Materials Valve construction materials allow use in applications as low as C. Quick-Change Valve Plug Removable groove pin allows quick, easy valve plug replacement. W85/IL Figure 1. Design D4 Control Valve D-Body Compatibility Seat ring can be removed with the same service tools used with a Fisher Design D valve. Easy Installation Compact design allows installation where space is a premium. Easy Maintenance Hammer nut bonnet/body joint allows repair or maintenance with a minimum of tools, without removing the valve body from the piping system. Standard Trim for Throttling or On-Off Service Micro-Form trim is standard for throttling or on-off service at no extra cost. D103039X012

2 D4 Valve Features (continued) Integral Bonnet Flange Bonnet has an integral flange that accepts hammer nut force when making the bonnet-to-body connection. There are no snap rings subject to possible failure in sour service or in atmospheric corrosion. NACE Trim Available Optional NACE trim and body materials are available for all applications. These constructions comply with the recommendations of the National Association of Corrosion Engineers (NACE) MR0175. Live-loaded Packing System The packing system provides a superior stem seal to prevent the loss of valuable or hazardous process fluids or gases. It features field-proven Fisher ENVIRO-SEAL packing technology, to provide reduced packing maintenance. Application Flexibility Choices of port diameters up to 31.8 mm (1-1/4 inches), end connections, and trim materials suit these valves to many applications, including sour gas service. Installation Design D4 control valves may be installed in any position, but normally the actuator is vertical and above the valve. Install the control valve so the flow direction arrow on the side of the valve body indicates the direction of the process flow. Dimensions are shown in tables 5 and 6 and figures 4 and 5. Ordering Information Product Bulletin Note: Fisher does not assume responsibility for the selection, use, or maintenance of any product. Responsibility for proper selection, use, and maintenance of any Fisher product remains solely with the purchaser and end-user. When ordering, specify: Application Information 1. Type of application a. Throttling or on-off b. Reducing or relief (back pressure) 2. Controlled fluid a. Type (include chemical analysis, if available) b. Temperature (normal and maximum anticipated) c. Specific gravity 3. Range of flowing inlet pressures 4. Pressure drops a. Range of flowing pressure drops b. Maximum drop at shutoff 5. Flow rates a. Minimum controlled flow b. Normal flow c. Maximum flow 6. Input signal range to actuator Control Valve Assembly Information Refer to the Specifications and review the information under each specification. 2

3 Product Bulletin D4 Valve 40C3710-A Figure 2. Design D4 Control Valve with Size 40 Actuator and Flanged Valve Body (Spring-To-Close Configuration) 3

4 D4 Valve Product Bulletin GE00282-A Figure 3. Design D4 Control Valve with Size 40 Actuator and 2-Inch Flanged Valve Body (Spring-To-Open Configuration) 4

5 Product Bulletin D4 Valve Table 1. Valve Sizes and Connection Styles VALVE PORT RING TYPE JOINT SCREWED RAISED FACE (RF) FLANGED SIZE, DIAMETER, (RTJ) FLANGED INCHES (INCHES) 3600 psi Class 150 Class 300 Class 600 Class 1500 Class 600 Class /4, 3/8, 1/2, 3/4 X X X X X X X 2 1/4, 3/8, 1/2 3/4, 1, 1-1/4 X X X X X X X X = Available construction. Table 2. Design D4 Control Valves Approximate Weights, Kg (Pounds) Valve Body Size, Inches 1 2 Screwed 32 (71) 39 (87) Class (74) 39 (86) Class 300 and (81) 48 (106) Class (110) 66 (1) 5

6 D4 Valve Product Bulletin Table 3. Maximum Shutoff Pressure Drops (1) for Design D4 Control Valves (Spring-To-Close) INPUT SIGNAL TO ACTUATOR, INITIAL BENCH SET PORT DIAMETER mm Inches 1/4 3/8 1/2 3/ /4 0 to 2.0 Bar (0 to 30 Psig) 0 to 2.3 Bar (0 to 33 Psig) 0 to 2.4 Bar (0 to 35 Psig) 0 to 3.4 Bar (0 to 50 Psig) 0.4 to 2.0 Bar (6 to 30 Psig) 0.74 Bar (10.7 Psig) 0.93 Bar (13.5 Psig) 1.06 Bar (15.4 Psig) 1.1 Bar (15.9 Psig) 0.74 Bar (10.7 Psig) Bar Psi Bar Psi Bar Psi Bar Psi Bar Psi The pressure or temperature limits in the referenced tables and any applicable ANSI code limitations should not be exceeded Table 4. Maximum Shutoff Pressure Drops (1) for Design D4 Control Valves (Spring-To-Open) INPUT SIGNAL TO ACTUATOR, INITIAL BENCH SET PORT DIAMETER mm Inches 1/4 3/8 1/2 3/ /4 0 to 2.0 Bar (0 to 30 Psig) 0 to 2.3 Bar (0 to 33 Psig) 0 to 2.4 Bar (0 to 35 Psig) 0 to 3.4 Bar (0 to 50 Psig) 0.4 to 2.0 Bar (6 to 30 Psig) 0.32 Bar (4.7 Psig) 0.32 Bar (4.7 Psig) 0.32 Bar (4.7 Psig) 0.32 Bar (4.7 Psig) 0.74 Bar (10.7 Psig) Bar Psi Bar Psi Bar Psi Bar Psi Bar Psi The pressure or temperature limits in the referenced tables and any applicable ANSI code limitations should not be exceeded Table 5. Dimensions (1) END CONNECTION STYLE Screwed Class 150 RF Flg Class 300 RF Flg Class 600 RF Flg Class 600 RTJ Flg Class 1500 RF Flg Class 1500 RTJ Flg 1. Also see figures 4 and 5. 1-INCH VALVE BODY 2-INCH VALVE BODY A D G A D G mm Inches mm Inches mm Inches mm Inches mm Inches mm Inches Table 6. Dimensions (1) FAIL ACTION C E F mm Inches mm Inches mm Inches Fail Down, Spring-To-Close Fail Up, Spring-To-Open Also see figures 4 and 5. 6

7 Product Bulletin D4 Valve C E MAX F 1/4-18NPT CONTROL D G 40C3710-A A/2 A Figure 4. Design D4 Valve Dimensions, Spring-To-Close (also see tables 5 and 6) 7

8 D4 Valve Product Bulletin C E 1/4-18NPT CONTROL D G GE00282-A A/2 A Figure 5. Design D4 Valve Dimensions, Spring-To-Open (also see tables 5 and 6) 8

9 Product Bulletin D4 Valve Coefficients Table 7. Design D4, Micro-Form Valve Plugs Equal Percentage Micro-Form - Flow Up Characteristic Valve Port Total Flow Size, Diameter Travel Coeffi- Valve Opening Percent of Total Travel F (1) L Inches mm Inches mm Inches cient C v /4 19 3/4 K v X T F d C v /8 19 3/4 K v X T C v /2 19 3/4 K v X T F d C v /4 19 3/4 K v X T F d C v /4 19 3/4 K v X T F d C v /8 19 3/4 K v X T F d C v /2 19 3/4 K v X T F d C v /4 19 3/4 K v X T F d C v /4 K v X T F d C v /41/4 19 3/4 K v X T F d At 100% travel. 9

10 D4 Valve Product Bulletin Specifications Available Configurations Spring-To-Close Spring-To-Open Valve Sizes and End Connection Styles (1) See table 1 Dimensions See tables 5 and 6 and figures 4 and 5 Face-to-face dimensions for flanged valves conform to ISA (Classes ) and ANSI/ISA Short (Class 1500) Maximum Inlet Pressures and Temperatures (1) If the valve nameplate shows an ANSI pressure-temperature class, maximum inlet pressure and temperature is consistent with applicable ANSI class per ASME B If the nameplate does not show an ANSI class, it will show a maximum cold working pressure at 38 C (100 F) (for example, 3600 psi) Maximum Pressure Drops (1) See tables 3 and 4 Input Signal to Actuator See tables 3 and 4 Actuator Maximum Casing Pressure 3.4 bar (50 psig) Shutoff Classification per ANSI/FCI -2 and IEC ANSI Class IV Flow Characteristic Equal percentage Flow Direction Flow up only Flow Coefficients See the section titled Coefficients in this bulletin or Fisher Catalog 12 Port Diameters See table 1 Construction Materials Valve Body and Bonnet: ASME SA 352 LCC Stress relieved Valve Plug and Seat: S31600/Alloy 6 Valve Stem: S20910 (Nitronic 50) Actuator O-Rings: (HNBR) Hydrogenated Nitrile Bonnet O-Ring: Standard: HNBR Optional: Fluoroelastomer Packing: PTFE/Carbon PTFE Packing Springs: N07718 (Inconel 718) Packing Retainer: S17400 Actuator Diaphragm: Neoprene Actuator Spring: Painted steel Seat Ring Gasket: S31600 (316 SST) Maximum Rated Valve Plug Travel 19 mm (3/4 inch) Valve Plug Style Micro-Form valve plug Actuator Diaphragm Effective Area 452 cm 2 (69 inches 2 ) Actuator Pressure Connection Size 1/4 inch NPT female Material Temperature Capabilities Actuator Assembly: 40 to 93 C ( 40 to 200 F) Valve Body Assembly: Standard Bonnet O-Ring: to 149 C ( 50 to 300 F) Optional Bonnet Fluoroelastomer O-Ring: 23 to 204 C ( 10 to 400 F) 1. The pressure or temperature limits in the referenced tables and any applicable ANSI code limitations should not be exceeded. 10

11 Product Bulletin D4 Valve 11

12 D4 Valve Product Bulletin ENVIRO-SEAL, Micro-Form, and Fisher are marks owned by Fisher Controls International, Inc., a business of Emerson Process Management. The Emerson logo is a trademark and service mark of Emerson Electric Co. All other marks are the property of their respective owners. This product may be covered by one or more of the following patents: 5,129,625; 5,131,666; 5,056,757; 5,230,498; and 4,986,300 or under pending patents. The contents of this publication are presented for informational purposes only, and while every effort has been made to ensure their accuracy, they are not to be construed as warranties or guarantees, express or implied, regarding the products or services described herein or their use or applicability. We reserve the right to modify or improve the designs or specifications of such products at any time without notice. Fisher does not assume responsibility for the selection, use or maintenance of any product. Responsibility for proper selection, use and maintenance of any Fisher product remains solely with the purchaser and end-user. Emerson Process Management Fisher Marshalltown, Iowa USA Cernay 680 France Sao Paulo Brazil Singapore Fisher 12 Controls International, Inc. 2002; All Rights Reserved Printed in USA.