Double Acting and Spring Return Actuator and Accessories MTC Series TM Pneumatic Actuators Atex Class
Operations Double Acting A B A B By supplying air to Port A, pressure is applied to the center chamber and forces the dual pistons outward. Linear piston force is transferred via gear racks to the pinion gear, causing the pinion to turn counterclockwise while the air is being exhausted from Port B. By supplying air to Port B, pressure is applied to the outside chamber and drives the dual pistons inward. The action causes the pinion to turn clockwise while the air is being exhausted from Port A. Spring Return (Fail clockwise shown) A B A B By supplying air to Port A, pressure is applied to the center chamber, forcing the dual pistons outward, compressing the springs in the outside chambers to produce a counterclockwise rotation. Exhaust air exits at Port B. Upon loss of air pressure, the stored energy in the compressed springs forces the pistons inwards producing rotary motion with exhaust air exiting at Port A. This "fail safe" position is held by spring force until air pressure reapplied to Port A. Installation of Springs for Spring Return Actuator Springs Springs Springs Springs Springs 0 Springs Springs Springs Even spring set is recommended for high cycle application.
Materials of Construction 3 4 3 4 0 0 3 4 (Optional) No. Part Description Qty. Material No. Description Qty. Material Indicator Cap Screw Plastic / Stainless Steel Spring (Cartridge) 0~ High Alloy Spring Steel Position Indicator Plastic (ABS) Bearing (Piston) 3 Pinion Snap Ring O-ring (Piston) 4 Thrust Washer Piston Die-Casting Aluminum Thrust Bearing Plug Body Extruded Aluminum Alloy 0 O-ring (Adjust Screw) Piston Guide Stop Nut (Adjust Screw) O-ring (Pinion Top) Adjust Screw Bearing (Pinion Top) 3 Stop Screw 0 Inside Washer 4 Nut (Stop Screw) Cam Alloy Steel* O-ring ( Cap) Pinion (Drive Shaft) S.S. 300 Series / Nickel Plated Alloy* Cap Die-Casting Aluminum 3 Bearing (Pinion Bottom) Cap Screw 4 O-ring (Pinion Bottom) Shaft Adapter Sintered Metal * Stainless steel for model DA/SR03 and smaller only. 3
Dimensions 0. 0.4 0. NAMUR PINION DETAIL K V MODEL C-DA40, DA/SR0-0 C-DA/SR0-0 V 0.. 4-M x 0.3 NAMUR J ØD M E H G F L A C B U T M 4xS 4 0. 0.4 0. 0.3 0. 0.3 /"-NPT /4"-NPT 0.4 4-M x 0.3 4-M x 0.34 0. /4" NAMUR /" NAMUR 4 x R MODEL: C-DA/SR-0 M Unit: inch Model A B C D E F G H J K L M R S T U MTC-DA40 4..44.3..0.3 3. 3.. 0. 0.43 M x M x 0 F03/.4 F0/. MTC-DA/SR0...3....3 3. 3.. 0. 0.43 M x M x 0 F03/.4 F0/. MTC-DA/SR03..4...3 3. 3.44 4.3 3.. 0. 0. M x 0 M x 3 F0/. F0/. MTC-DA/SR0.4..0. 3. 3.0 3. 4.0 3.. 0. 0. M x 0 M x 3 F0/. F0/. MTC-DA/SR03.03..4. 3. 3. 4..0 3.. 0.3 0. M x 0 M x 3 F0/. F0/. MTC-DA/SR0 0.3..30. 3. 4.3 4.0.3 3...0 0. M x 0 M x 3 F0/. F0/. MTC-DA/SR0 0.... 4.3 4..4.0 3...0 0. M x 3 M0 x F0/. F0/4.0 MTC-DA/SR...3..0.3.0. 3...3 0. M x 3 M0 x F0/. F0/4.0 MTC-DA/SR40.3. 3.03..4.33..4 3...3.0 M0 x M x 0 F0/4.0 F/4. MTC-DA/SR0.03 3.43 3.43...4..4 3....0 M0 x M x 0 F0/4.0 F/4. MTC-DA/SR0 0. 4.0 4.0 3..44.0.0 0.4.,..4 M x F4/. MTC-DA/SR0.0 4.4 4.4 3... 0.04.....4 M x F4/. MTC-DA/SR40 3.0.. 3.. 0.3.3..,.. M0 x F/.4 MTC-DA/SR0.0.. 3. 0...3 4.0.... M0 x F/.4 4
Technical Data Spring Return Actuators Output Torque (lbf-in) Output Air to Spring Air Pressure (PSI) 40 0 0 0 0 0 00 Spring 0 0 Actuator Type o o No. MTC-SR MTC-SR3 MTC-SR MTC-SR3 MTC-SR MTC-SR0 0 0 0 0 0 0 4 3 4 4 0 3 3 4 43 34 Operating Conditions 3 4 3 3 03 4 4 4 4 0 3 33 0 3 44 3 3 33 3 40 403 3 3 44 4 34 0 3 44 03 33 0 40 30 0 Operating Media: Dry and lubricated air, or non-corrosive gas. The maximum particle diameter must be less than 30 μm. Air Supply Pressure: The minimum supply pressure is 3 psig. The maximum supply pressure is 0 psig. 4 0 4 0 04 4 3 0 3 4 4 400 3 34 33 4 44 44 3 0 4 3 44 33 3 33 4 3 0 0 34 3 3 44 3 33 0 0 0 0 40 400 30 0 3 0 3 4 0 4 3 303 4 4 3 3 0 4 44 4 400 33 34 4 0 4 0 03 0 4 4 3 0 33 0 3 0 3 434 3 3 3 3 3 4 43 3 3 0 0 4 40 4 40 40 33 44 34 3 33 3 30 4 0 34 0 43 4 3 4 03 00 04 4 04 4 4 4 0 03 30 4 3 0 4 4 3 33 3 43 4 43 4 4 33 0 3 4 3 3 304 3 3 4 40 3 3 33 3 3 3 3 4 4 3 00 4 30 30 0 3 3 3 3 0 04 3 34 34 30 3 00 44 4 0 00 4 3 04 34 330 30 4 43 4 0 0 3 4 43 40 30 0 4 3 3 34 0 0 3 3 0 4 4 Spring Return Output 0 0 3 4 03 4 0 3 30 04 44 3 3 40 44 4 304 3 4 4 4 0 30 43 3 0 4 04 Operating Temperature: Standard (NBR O-ring): -4 o F to o F. Low Temperature (Silicone O-ring): -3 F to o F. High Temperature (Viton O-ring): o F to 30 F. Premium Range (HNBR O-Ring): -4 F to F Stroke Adjustment: Pinion stops allow ± o adjustment at and. 3 4 0 0 0 33 4 3 3 4 0 4 40 4 0 30 33 0 4 33 3 43 44 4 0 33 3 44 04 0
Spring Return Actuators Output Torque (lbf-in) Spring Return output Output Air to Spring 0 0 0 0 0 0 0 0 0 4 0 0 33 3 3 4 30 3 33 4 33 43 30 4 3 3 34 0 3 4 3 4 03 3 00 34 000 3 3 3 40 3 0 44 40 34 33 3 4 40 34 3 0 3 0 0 4 40 03 3 43 03 334 0 40 44 34 0 34 4 3 0 3 3 0 0 34 03 3 3 3340 30 33 4 44 43 3 4 0 40 033 4 0 33 3 44 3 3 4 40 4 3 4 44 00 3 00 43 0 4 43 3 3 3 40 44 34 3 0 00 4 34 40 33 43 0 0 4 340 0 3 4 33 03 4 40 3 333 3 30 04 00 3 0 33 4 0 0 3 3 33 034 0 4 3 04 30 34 3 43 443 33 340 0 0 34 04 3 33 3 44 00 34 3 0 4 0 43 33 4 433 30 3 3 4 3 43 43 34 0 0 0 34 44 00 0 00 4 4 303 3 4 40 444 43 3 3 44 3 4 40 43 0 34 3 44 0 034 4 4 43 4 4 043 4 0 03 4 3 344 30 4 3 3 30 4 43 044 4 0 04 33 04 44 3 00 0 3 4 34 343 334 34 300 33 400 4 0 4 40 4 03 0 434 340 4 40 340 0 4 334 4 4 3 0 300 0 4 4 433 4034 34 33 0 33 3 34 44 4 04 4 44 33 44 4 00 03 4 34 4 4 0 30 3 34 3 3 3 03 0 300 4 4 34 30 43 44 430 3 043 03 43 333 3 4 300 4 4 40 3 0 0 0 0 30 3 4 3 43 30 4 4 40 33 3 340 33 44 430 340 33 430 4 3 43 33 43 0 0 4 4 4 44 0 04 0 0 3 0 4 3 30 43 30 04 3 0 4 44 4 33 3 40 44 3 3 334 430 4 43 00 333 403 40 3 03 3 0 40 44 03 0 34 44 3 34 30 MTC-SR MTC-SR40 MTC-SR0 MTC-SR0 MTC-SR0 MTC-SR40 MTC-SR0 Spring No. Actuator Type 40 Air Pressure (PSI) 0 0 0 0 0 00 Technical Data
Technical Data Double Acting Actuators Output Torque (lbf-in) MODEL 40 0 0 Air Pressure (Psig) 0 0 0 00 0 0 MTC-DA40 MTC-DA MTC-DA3 3 4 00 33 3 40 4 44 44 40 3 Double Acting Torque Curve MTC-DA 4 30 3 430 40 3 4 3 MTC-DA3 MTC-DA MTC-DA0 MTC-DAI 33 0 4 00 3 4 33 4 4 03 40 40 3 0 303 03 33 4 4 43 3 Torque 0 0 MTC-DA40 0 333 3 4 4 43 MTC-DA0 34 40 43 4 30 34 4 MTC-DAI0 4 03 44 4 MTC-DA0 4 4 34 4 43 4 MTC-DA40 MTC-DA0 3 4 3 40 430 40 04 33 34 3 0 3 4 4 Spring Return Torque Curve Weight (lbs) MODEL 40 3 3 0 40 0 0 0 40 0 MTC-DA 3 4 0 3 3 0 0 3 MTC-SR 3 4 4 44 3 Maximum Air Consumption (cu. inches) Per Stroke Model Action 3 3 0 CCW.3..3. 3..0. CW. 4. 0.. 44. 3..4 Actuator Cycle Speed (sec.) 40. 34. 0.. 0 3. 3.4 0 4. 4. 40. 4.3 0 03. 4.4 Action Model 3 3 0 40 0 0 0 40 0 CCW CW DA SR DA SR 0.3 0.4 0.4 0.4 0. 0. 0. 0. 0. 0. 0..0 0. 0. 0..0 0. 0. 0.. 0..0.0. 0......4....0..... 3.0. 3. 3. 4.0 3. 4. 4..0 3. 4. 4..0 Torque Air Stroke 0 0 Torque Spring Stroke 0 0 Interface Specification Drive and Flange to ISO configuration for easy direct mount onto a valve or connection with standardized mounting hardware. The NAMUR Drive Pinion and NAMUR top mounting connection for direct installation of accessories such as Limit Switch and Positioner. Air supply connection is designed in accordance with NAMUR Standard to install solenoid valve.
Quality Assurance All actuators are manufactured in a registered ISO 00-000 facility All actuators are 00% inspected and tested in factory Each actuator is marked with a unique serial number for full traceability. can also provide valve automation accessories, including Limit Switches, Positioners, Solenoid Valves, and Mounting Hardware. Torque Range at 0 Psig Air Pressure: Double Acting: -,00 lbf-in Spring Return: 0 -,00 lbf-in Cycle Life: up to million cycles Other Series of Actuators B Series Actuator Aluminum Body, s, Wide Range of Selection Model B-DA3-400, SR4-400 Torque: up to 000 lbf-in for DA 300 lbf-in for SR Represented by: Pneumatic Actuators TM info@mastertorq.com This catalog is not contractual and may be amended without notice.