How it works
Spring-return rotary actuator
Construction
Parts and materials
Pneumatic actuators with return springs DNOVA PA-SA-85 for food gates WBV3131E-2W-W/T/C are designed for automation of the control process of quarter-turn pipeline valves.
Dimensions and mounting dimensions of pneumatic actuators with return springs DNOVA PA-SA-85 for food gates WBV3131E-2W-W/T/C
| Model | Size in mm | |
| Height | D | |
| 85 mm | 147 mm | 85 mm |
Dimensional sketch of pneumatic actuators with return springs DNOVA PA-SA-85 for food gate WBV3131E-2W-W/T/C complete with gate valve
Materials of pneumatic actuators with return springs DNOVA PA-SA-85 for food gates WBV3131E-2W-W/T/C
| № | Name | Material |
| 1 | Compressed air connection | n/a |
| 2 | locking ring | stainless steel 304 |
| 3 | Top cover | stainless steel 304 |
| 4 | O-ring | NBR |
| 5 | O-ring | NBR |
| 6 | piston | Aluminum alloy 4A11 (with high silicon content - from 4.5 to 6%) |
| 7 | Needle bearing | n/a |
| 8 | Spring | 65Mn spring steel |
| 9 | Spring | 65Mn spring steel |
| 10 | Needle bearing | n/a |
| 11 | Needle bearing | n/a |
| 12 | Transfer ring | stainless steel 304 |
| 13 | O-ring | NBR |
| 14 | Needle bearing | n/a |
| 15 | Case | stainless steel 304 |
| 16 | Silencer | brass H62 |
Material sketch of pneumatic actuators with return springs DNOVA PA-SA-85 for food gates WBV3131E-2W-W/T/C
Production. Usually 7–14 business days after you approve the quotation and pay. Made-to-specification items are confirmed in the quotation.
Freight. Not charged at checkout. A manager quotes air and sea freight to your port or airport, and nothing ships until you approve the price and the freight.
To North America. From approval and payment to the destination port or airport: air 14–24 days, sea 32–60 days. Estimates, not guarantees.
Terms. EXW Ningbo or FOB Ningbo Port; CIF on request. The agreed term is written on the Proforma Invoice.