Design A61D TriAx Triple Offset High Performance Butterfly Valve

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1 pril 2000 ulletin 51.6:61D Trix Design 61D Trix Triple Offset High Performance utterfly Valve Description The Design 61D Trix is a triple offset disk HPV designed for rugged isolation service, available in 3 through 24-inch sizes(see figure 1). The Design 61D Trix is fire-tested approved to PI 607 Rev 4 and meets PI 609 anti-blowout shaft retention requirements. These carbon steel or stainless steel double flanged valves are available in NSI Class 150 and 300 pressure classes. Standard face-to-face dimensions include NSI (gate valve) and ISO 5752 (short) lengths. The Design 61D Trix can be mounted to a Rack and Pinion Type 1035 actuator or a ettis Scotch Yoke actuator. The triple offset sealing system provides bi-directional bubble tight shut-off and high frequency operation with repeatable zero leakage. Features Frictionless Sealing The disk and seal surfaces meet at one contact angle, due to the triple offset geometry. ll points of the seal ring contact the seat at the same time converting the rotary motion to frictionless (non-rubbing) compression of the resilient metal seat. Excellent Shutoff Integrity Torque applied to the valve shaft loads the seal ring equally at all points with radial force to assure bi-directional zero leakage. nti lowout Protection Three anti-blowout prevention elements on the shaft provide safety from blowout hazards in compliance with PI 609. Ease of Seat Ring Maintenance The field-replaceable stainless steel seat press-fits into the valve body, eliminating costly valve body repairs. This allows maximum flow capacity, compared to valves with bolted-in seat ring designs. Compatible ctuator Mounting The ISO 5211 actuator mounting pad has full metric bolting dimensions and makes the valve compatible with a wide variety of actuators, such as the Rack and Pinion Type 1035 actuator or a ettis Scotch Yoke actuator. Structural Integrity One-piece valve body improves structural integrity of the pressure boundary by eliminating leak paths that could be caused by the body gaskets in two-piece, bolted valve designs. W7913 / IL Figure 1. Design 61D Trix Control Valve Self-Lubricated earings The Design 61D Trix features two self-lubricated valve body bearings. Each bearing has a grit excluding bearing seal at the inner diameter. This grit excluder prevents migration of particulate debris into the bearings. D102725X012

2 ulletin 51.6:61D Trix Specifications vailable Valve Sizes and Ratings (1) 3-, 4-, 6-, 8-, 10-, 12-, 14-, 16-, 18-, 20-, and 24-inch in NSI Class 150 or 300 Construction Materials See table 1 End Connection Style Double flange style. Face-to-face raised face dimensions per NSI 16.10, PI 609 Table 2 (Gate Valve) or ISO 5752 Short, PI 609 Table 2C. Maximum Inlet Pressure (2) Consistent with NSI Class 150 or 300 ratings per NSI Maximum Temperature Capabilities WCC Carbon Steel and NCE Valve ody: 29 to 427 C ( 20 to 800 F) LCC Carbon Steel Valve ody: 46 to 427 C ( 50 to 800 F) Stainless Steel Valve ody: 46 to 427 C ( 50 to 800 F) Shutoff Classification Zero leakage per PI 598 for resilient seated valves Flow Characteristic Modified equal percentage Flow Coefficients (Cv at 90 ) 3-inch:150 4-inch:330 6-inch:850 8-inch: inch: inch: inch: inch: inch:11, inch:14, inch:22,000 vailable ctuators Spring return and double-acting Rack and Pinion Type 1035 or ettis Scotch Yoke type actuators. Design 61D Trix has ISO 5211 mounting pattern. Disk Rotation Clockwise (CW) to Close Valve Dimensions and pproximate Weights See figure 3 Fire-Tested Rating pproved to PI 607 Rev 4 Options NCE materials available. 1. The valve sizes listed in this bulletin refer to Nominal Pipe Size (NPS). 2. The pressure/temperature limits in this bulletin, and any applicable code or standard limitation, should not be exceeded. Triple xis Offset Configuration The Triple xis Offset sealing system in the Design 61D Triax valve achieves a seal between the two steel surfaces: a laminated duplex stainless steel/ graphite seal ring and a solid stainless steel seat. The seal ring and seat are machined into a conical shape with the apex of the cone off the centerline of the valve. The Triple xis sealing creates a linear movement of the seal ring in and out of the seat by widening the angles of engagement. The motion of the seal ring from open to close is rotary, until the last fraction of movement. It then becomes linear into and out of the seat. This creates a frictionless (non-rubbing) sealing system. fter the seal ring and seat engage, torque loads the seal ring equally around the entire periphery of the seal ring with radial force, creating bubble tight shutoff. Installation Preferred valve orientation for the Design 61D Trix valve is reverse flow direction (shaft upstream). i directional flow is permitted. For assistance in selecting the appropriate combination of actuator action and open valve position, consult your Fisher Controls sales office or sales representative. 2

3 ulletin 51.6:61D Trix Table 1. Materials of Construction Part Name Key Number Carbon Steel Stainless Steel NCE Valve body 10 WCC or LCC steel CF8M stainless steel (SST) WCC steel Disk 15 WCC steel, Nickel Plated CF8M SST WCC steel, Nickel Plated Disk Square Key 73 ISI S31600 (316 SST) or S30400 (304 SST) ISI 316 SST ISI 316 SST or 304 SST Disk Socket Head Cap Screw 71C 8M 316 SST or SST 8M 316 SST or SST 8M 316 SST or SST Seat Ph SST H1150M CF8M SST 17-4 Ph SST H1150M Shaft Ph SST H1150M STM 479 type XM Ph SST H1150M Shaft Retainer 26 ISI 410 SST (RC 22 max) 316 SST ISI 410 SST (RC 22 max) Packing Ring 63 raided Carbon filament yarn and Graphite raided Carbon filament yarn and Graphite raided Carbon filament yarn and Graphite Packing Gland 20 ISI C-1018 steel 316 SST ISI C-1018 steel Packing Retainer 21 ISI C-1018 steel 316 SST ISI C-1018 steel Packing ox ushing 22 ISI C-1018 steel or 316 SST 316 SST ISI C-1018 steel Packing Flange 25 ISI C-1018 steel ISI C-1018 steel, Nickel plated ISI C-1018 steel Packing Stud 70 Class 8.8, Nickel plated 660 SST (RC 35 max) 7M, Nickel plated Hex Nut 72 Class SST (RC 35 max) 2HM, Nickel plated Follower Flange 24 ISI C-1018 steel 316 SST ISI C-1018 steel Follower Flange Gasket SST and Graphite 304 SST and Graphite 304 SST and Graphite Follower Flange Hex olt 71 Class SST (RC 35 max) 7M Center Key 27 CF8M SST or 316 SST CF8M SST or 316 SST CF8M SST earing 30 ISI 416 SST (heat treat Rc 37-47) STM 439 type D SST (Rc 22 Max) earing/shaft Seal 62 raided carbon filament yarn raided carbon filament yarn raided carbon filament yarn Seal Ring Locator Ph SST 316 SST 17-4 Ph SST Seal Ring 35 Seal Ring Retainer 36 STM 240 S31803 Duplex SST and Graphite STM -36 or ISI C-1018, Nickel Plated STM 240 S31803 Duplex SST and Graphite 316 SST STM 240 S31803 Duplex SST and Graphite STM -36 or ISI C-1018, Nickel Plated Seal Ring Gasket SST and Graphite 304 SST and Graphite 316 SST and Graphite Thrust Washer Ph SST 17-7 Ph SST 17-7 Ph SST Dowel Pin 74 Carbon steel 316 SST Carbon steel 3

4 ulletin 51.6:61D Trix E0285 / IL Figure 2. Design 61D Trix Valve ssembly 4

5 ulletin 51.6:61D Trix NSI Class 150 VLVE SIZE, INCH NSI (Gate) ISO 5752 (short) C D E G H J PPROX. WEIGHT mm kg Inches lbs E C NO. OF HOLES D OLT SIZE UPSTREM END G/P MXIMUM D K D UPSTREM END K G/P MXIMUM Cx Cx FLOW E0286 / IL Figure 3. Dimensions and Weights Class 150 and 300 5

6 ulletin 51.6:61D Trix NSI Class 300 VLVE SIZE, INCH NSI (Gate) ISO 5752 (short) C D E G H J PPROX. WEIGHT mm kg Inches lbs Figure 3. Dimensions and Weights Class 150 and 300 (continued) Fisher and Fisher-Rosemount are marks owned by Fisher Controls International, Inc. or Fisher-Rosemount Systems, Inc.Trix is a mark owned by Orbit Valve Company. ll other marks are the property of their respective owners. Fisher Controls International, Inc. 2000; ll Rights Reserved For information, contact Fisher Controls: Marshalltown, Iowa US Cernay France Sao Paulo razil Singapore Printed in U.S..