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| | | Actuator Mounting Positions Double-Acting Spring Return & Spring Return- Spring-to-Close- Spring-to-Open Single Cylinder Single Cylinder Q ri â to | | |
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| | | C | Standard Position 90° Position Standard gn° Position Position | | |
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| | | 180° Position t=J 180° Position 270° Position 270° Position | | |
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| | | Spring Return Spring-to-Open-Double Cylinder Standard Position | | Spring Return Spring-to-Close- Double Cylinder Spring Return | | |
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| | | Standard Position | | |
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| | | 90° Position | | |
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| | | 90° Position | | |
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| | | 180° Position | | |
| | | 180° Position | | |
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| | | 270° Position | | |
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| | | 270° Position | | |
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| | | Actuator Torques & Weights | | |
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| | | Spring Return | | |
| | | Double-Acting | | |
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| | | | | | | | | | | | | Torque | Weight LBS | | | | | Ft-Lbs. (NM) | (KG) | | | | Actuator | 60 psi | Spring- | Spring- | | | | Size | (4 Bar) | to-Open | to-Close | | | | PR-R1A-SC4 | 56 (76) | 50 (23) | 53 (24) | | | | PR-R1A-SC6 | 126 (171) | 92 (42) | 94 (43) | | | | PR-R2A-SC6 | 255 (346) | 114 (52) | 129 (59) | | | | PR-R2A-SC8 | 450 (610) | 184 (83) | 208 (94) | | | | *PR-R1A-SC4A | 56 (76) | 36 (17) | 38 (17) | | | | *PR-R1A-SC6A | 126 (171) | 52 (24) | 54 (25) | | | | *PR-R1A-SC6B | 126 (171) | 56 (26) | 58 (27) | | | | | | | | | | | |
| | | | | | | | | | | | | Torque-Ft-Lbs. (NM) | Weight LBS (KG) | | | | Actuator | 60 psi | 80 psi | | | | Size | (4 Bar) | (5.5 Bar) | | | | PR-R1A-PC4 | 56 (76) | 75 (102) | 28 (13) | | | | PR-R1A-PC6 | 126 (171) | 170 (230) | 42 (19) | | | | PR-R2A-PC6 | 255 (346) | 340 (461) | 59 (27) | | | | PR-R2A-PC8 | 450 (610) | 600 (813) | 82 (37) | | | | | | | | | | | |
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| | | *Single cylinder | | |
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| | | 6 | | |
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