Valve Solutions for the Bulk Material Industry
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- Gwendolyn Bryan
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1 Valve Solutions for the Bulk Material Industry
2 SUCCESS STORY Plant name & location: Tronox, llc. Hamilton, Ms Application: Ore Silo Inlet Media: Titanium Rutile Ore Tronox, llc., formerly Kerr McGee Chemical is a manufacturer of titanium dioxide pigment better known in the industry as TiO2. In one area of the process, they pneumatically transport a fine, granular substance into the storage silo. For years they have battled a problem with isolation and block valves. They have a main trunk line with several down spouts coming off of it going to the different silos. The valve opens while the silo is filling and when the desired level is reached, the valve closes. The vessel then pressurizes, pushing the material out of the bottom, to the desired location. This is repeated over and over throughout the day. Tronox has tried several style valves over the years and had settled on an Everlasting valve, which proved to last longer than the others tried. In normal circumstances, the Everlasting valves would last 2-3 months before having to be repaired. On April 1 st. 200, Tronox installed the Orbinox series 14 knife gate valve in this application. They chose the option of a Ni-hard deflector cone on the inlet side of the valve also. (A) On June 14 th, this line was down for repairs and they were curious to see how the valve was doing. After taking the valve out of line, they noticed very little wear on the valve (B) But there was noticeably wear occurring at the 12:00 position on the deflector cone. (C) The cone was rotated 10 degrees and the valve was put back into service that afternoon. Around mid September there was another down day in that area and they took the valve out for the second time. It was noted that the angled portion of the cone was completely eroded away, (D) yet still the valve showed very minimal wear. (E) They installed a new deflector cone and put the valve back in service again that afternoon. The valve was pulled again on due to leaking from a hole in the body. The failure analysis report confirmed the root cause of the failure was due to the deflector cone not being replaced or rotated on a regular basis. A true life expectancy has not yet been established. It has been determined that this style valve has far outlasted every other valve attempt in this application.. Tronox decided to go ahead with the design change and install the series 14 valve in the other similar applications in the area. The Orbinox series 14 valve, cost one third the cost of the Everlasting valve and it lasted almost 6 times longer. If you would like more information or need references on this type valve, please feel free to give us a call at any time.
3 A D B E C F
4 HOPPER SHAPE KNIFE GATE VALVE The SERIES 14 knife gate is a uni-directional wafer valve designed for industrial bulk handling service applications (powdered and granular products). The special internal body design allows easy flow of the media which prevents any build up. It also allows the valve to close properly and reduces premature wear of the seat. Ideal for installations on silo discharge in industries such as: Power Plants Food and Beverage etc. Chemical Plants Mining Sizes: 2 to 24 (larger diameters on request) OPPOSITE SEAT SIDE Working Pressure: PRESSURE Sizes 2 to 10 : 150 PSI 43 PSI Sizes 12 to 16 : 5 PSI 2 PSI Size 1 : 70 PSI 21 PSI Sizes 20 to 24 : 60 PSI 14 PSI Standard Flange Connection: ANSI B16.5 (class 150) and DIN PN 10 Note: Other flange connections are available on request. All valves are tested prior to shipping in accordance with the manufacturers specification standard developed by the Quality Control department at ORBINOX. STANDARD PARTS LIST Part: Cast Iron: Stainless Steel: 1- Body GG25 2- Gate AISI 304 CFM AISI Seat Metal or Resilient (EPDM Std.) 4- Packing 5- Gland Follower AH Aluminum (2 to 12 ) Cast Iron (14 to 24 ) NT CFM 6- Seat Retainer Ring 7- Support Plates AISI 304 AISI 316 Carbon Steel - Epoxy coated - Cap Carbon Steel 14-1
5 DESIGN FEATURES BODY: Wafer style cast monoblock design with reinforced ribs in larger diameters for extra body strength. Internally cast gate wedges and guides allow for tighter shut off. Cast body internal gate support prevents seat from deflecting off the gate when valve is installed in the reverse position of the flow direction. Wide internal body design avoids any build up of solids that could prevent valve from closing. Full port design for greater flow capacity and minimal pressure drop. Standard body flush ports allows cleaning of solids trapped within the body cavities that can obstruct the flow or sealing in the closed position if necessary. Purge ports can be injected with air, steam, liquids, etc. depending on the media. GATE: Blade polished on both sides for a tighter seal in the packing chamber. Straight beveled gate end shears through solids for tighter shut off. SEAT: (resilient) Stainless EPDM also available in different materials such as Viton, PTFE, etc. PACKING CHAMBER: Braided long life packing with EPDM O-ring for a tighter packing chamber seal. Smooth chamber and cast gland follower with equally distributed gland bolts provides uniform compression of packing. STEM: Corrosion resistance stainless steel stem. Single pitch Acme thread reduces torque on handwheel operator and eliminates installation of a gear operator on larger diameters. Standard stem protector on all handwheel actuators gives additional protection against dust while the valve is in the open position. ACTUATORS: All Orbinox actuator models are supplied with a standard mounting kit to allow easy installation on site. YOKE & SUPPORT PLATES: EPOXY coated steel (stainless steel available on request). Compact design makes it extremely robust even in the most severe conditions. EPOXY COATING: The electrostatic applied epoxy coating on all ORBINOX cast iron and carbon steel valve bodies and components make the valves corrosion resistant. GATE SAFETY PROTECTION: Gate guards are available upon request for areas where safety is a concern. The design feature prevents any objects from getting caught accidentally while the gate is moving. 14-2
6 OTHER OPTIONS BONNET: 14-3 Reduces risk of leakage to atmosphere where contamination of the environment is a concern. Leak proof stem seal can be easily re-packed in line. OTHER MATERIALS OF CONSTRUCTION AVAILABLE: Special alloys such as AISI 317, 254SMO, Hastelloys, Titanium, etc. FABRICATED VALVES: Orbinox is equipped for in house fabrication of special valves. Design is based on application, diameter, pressure, material of construction, etc., SURFACE TREATMENTS Valve components can be protected or coated for a longer life expectancy, depending on the application and the service conditions. At Orbinox we can offer treatments and coatings for the valve components to improve the properties against abrasion (stellite, polyurethane ), corrosion (Halar, Rilsan, galvanized ) and adherence (polishing, PTFE ). 14-3
7 ACTUATOR OPTION Handwheel (rising or non-rising stem) Chainwheel Lever BevelGear Others (square nut ) Electric Double Acting Pneumatic Single Acting Pneumatic Hydraulic All actuators supplied by ORBINOX are interchangeable. FAIL SAFE SYSTEMS Used on pneumatic actuated valves. SINGLE ACTING / SPRING RETURN Available in sizes 2 to, larger on request. Supply Minimum 75 PSI Pressure: Maximum 100 PSI Options: Fail open Fail close ACCESSORIES Mechanical Stops Locking Device Actuator Manual Override Solenoid Valves Positioners Limit Switches Electric Controls Floor Stands Stem Extensions SINGLE ACTING / VOLUME TANK Available in all sizes. Supply Minimum 50 PSI Pressure: Maximum 100 PSI Options: Pneumatic Fail safe Electropneumatic Fail safe Wide range of valve extensions available. For further information about fail safe systems and valve extensions, please refer to SERIES 10 section For additional information, please consult the factory. 1
8 SEAT / SEALS PACKING Material Max.Temp.( o F) Applications Material Max.Temp.( o F) ph Metal/Metal 500 High temperature. Tallowed cotton (AH) EPDM (E) 250 Acids and non mineral oils. Dry cotton (AS) Nitrile (N) 250 Petroleum products. Viton (V) 390 General chemical service. High temperature. PTFE impregn. Natural fiber (NT) PTFE impregn. Synth. fiber (ST) Braided PTFE (TH) Silicone (S) 42 Food service / High temperature PTFE (T) 42 Corrosion resistance.. More details and other materials on request. Graphite (AG) Ceramic fiber (FC) NOTE: Above includes an elastomer O-ring (same material as seal), excluding TH, AG and FC. SEAT TYPES TYPE A (metal/metal) standard High temperature High density media application Positive shut off TYPE B SEAT (metal/metal) High temperature High density media application Positive shut off Replaceable design without dismantling the valve TYPE A (resilient) standard Temperature limitations according to seat material selected. Consult the above chart or our technical department for more information. Replaceable seat retainer ring. TYPE B SEAT (resilient) Temperature limitations according to seat material selected. Consult the above chart or our technical department for more information. Replaceable design without dismantling the valve DEFLECTION CONE Deflects the media away from any exposed internal parts of the valve such as gate guides, seat, etc Different types of material available such as AISI 316 stainless, CA15, Nihard, etc... Face to face dimensions increase: Sizes 2 to10 =.375 Sizes 12 to 24 =
9 HANDWHEEL (rising stem) Standard handwheel actuator. Options: - Locking Device - Stem Extension Valve sizes available in 2 to 24, larger on request. For other options and dimensions, please consult our technical department. SIZE A B C D E F OG H Weight(lbs)
10 HANDWHEEL (non-rising stem) Recommended for installation where space is limited. Options: - Locking Device - Stem Extension - Square Nut Drive Valve sizes available in 2 to 24, larger on request. For other options and dimensions, please consult our technical department. SIZE A B C D E F OG H
11 CHAINWHEEL Recommended for elevated installations. Options: - Locking Device - Stem Extension - Non-rising Stem Valve sizes available in 2 to 24, larger on request. For other options and dimensions, please consult our technical department. SIZE A B C D E F OG H
12 LEVER Recommended for quick opening and closing. Options: - Locking Device Valve sizes available in 2 to 12. SIZE A B C D E F G H I
13 GEAR Recommended for valves larger than 14 and working pressures greater than 50 PSI. Options: - Locking Device - Stem Extension - Chainwheel - Non-rising Stem Valve sizes available in to 24. For other options and dimensions, please consult our technical department. SIZE A B C D E F G H I
14 PNEUMATIC CYLINDER Standard pneumatic actuator: - Carbon steel construction - Stainless steel tie rods and nuts - Nitrile Seats Valve sizes available in 2 to 24, larger on request. Supply Pressure: minimum 40 PSI - maximum 150 PSI All valves installed in a horizontal position, pneumatic actuators must be supported. NOTE: Depending on the application and service conditions, Orbinox can supply larger bore size cylinders. The table below shows the most commonly used bore sizes. Please consult our technical department for maximum differential pressure and minimum air supply for all pneumatic operated knife gate valves. Instrumentation and options on request: For other instrumentation and options, please consult our technical department. SIZE A B C D E F G H Weight (lbs) Standard Cyl. Connect Bore 1/4 NPT Bore 1/4 NPT Bore 1/4 NPT Bore 1/4 NPT Bore 1/4 NPT Bore 1/4 NPT Bore 1/4 NPT Bore 3/ NPT Bore 3/ NPT Bore 3/ NPT Bore 3/ NPT Bore 1/2 NPT Bore 1/2 NPT Bore 1/2 NPT 14-11
15 ELECTRIC ACTUATOR Standard Electric Actuator: - Electric Motor (manufacture standard) - Rising Stem or Non-rising Stem - Motor Support Yoke Flange (Acc. To ISO 5210 / DIN 333) Standard Electric Motor: - Manual Override - Limit Switches (open / close) - Torque Switches Valve sizes available in 2 to 24. NOTE: Please consult our technical department for specifications and options on electric motors. SIZE A B C D E F H OG I J L M Stem0xpitch Torque(ft/lbs) x x x x x x x x x x x x x x
16 FLANGE AND BOLTING DETAILS DIN PN10 DN K n o M T ANSI B16.5, class 150 DN K n o M T M-16 M-16 M-16 M-16 M-16 M-20 M-20 M-20 M-20 M-20 M-24 M-24 M-24 M / /4 5 1/ /2 1/2 9 1/2 11 3/4 14 1/ /4 21 1/4 22 3/ / / UNC 5/ UNC 5/ UNC 5/ UNC 3/4 UNC 3/4 UNC 3/4 UNC 7/ UNC 7/ UNC 1 UNC 1 UNC 1 1/ UNC 1 1/ UNC 11/4 UNC 3/ 3/ 3/ 3/ 3/ 1/2 1/2 3/4 3/4 7/ Your Company Information Here
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COMPANY PROFILE TABLE OF CONTENT. Our products have been supplied to local and foreign customers for the following industries:
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VQF Series V-port Segment Ball Valve (Flange) ISO9001 & CE Accredited Overview The Hiton VQF series v-port segment ball valve is primarily designed for flow control, and it can also be used for shut-off
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