Double Acting Hydraulic Series
The Valveworks USA Double Acting Hydraulic Series consists of a lineup of actuators with reliable, proven designs. The Hydraulic Actuation allows for hydraulically powered operation to open and close the gate valve. This series of actuators offers the user several options depending on the specific gate valve size and pressure.
Double Acting Hydraulic Actuators are similar to each other in design with only slight variations across the lineup, offering a high percentage of parts interchangeability, giving you an efficiency-driven advantage in the management and maintenance of your actuator fleet, and providing optimal life cycle management integrity.
This brochure provides an in-depth look at the details of this series of actuators and explains the features, benefits, characteristics, dimensional & technical data, and other valuable information needed to determine which actuator provides an optimal solution for your specific application.
TABLE 1 – PRODUCT FEATURES
| 550 Series | 650 Series | 850 Series | |
|---|---|---|---|
| Available valve bore sizes & rated working pressures (psi) |
1 13/16” 10/15K 2 1/16” 5/10/15K 2 9/16” 10K 3 1/8” 5/10K 4 1/16” 5K |
2 9/16” 15K 3 1/8” 15K 4 1/16” 15K 5 1/8” 3/5/10K |
5 1/8” 15K 7 1/16” 3/5/10/15K |
| Maximum operating pressure (psi) | 2500 | 2500 | 2500 |
| Available PR(a) | 2 | 2 | 2 |
| Material classes | AA | AA | AA |
| Stem type | Rising | Rising | Rising |
| Stem packing type | Opti-seal | Opti-seal | Opti-seal |
| Repacking | YES(b) | YES(b) | YES(b) |
| Balance stem | Yes | Yes | Yes |
| Temperature range | -20°F (-29°C) THRU 250°F (121°C) | -20°F (-29°C) THRU 250°F (121°C) | -20°F (-29°C) THRU 250°F (121°C) |
a) Performance Requirement.
b) Repacking is achieved via stem backseat method.
TABLE 2 – TEMPERATURE RATING
| Temperature Classification | Operating Range |
|---|---|
| P | -20°F (-29°C) TO 180°F (82°C) |
| S | 0°F (-18°C) TO 140°F (60°C) |
| T | 0°F (-18°C) TO 180°F (82°C) |
| U | 0°F (-18°C) TO 250°F (121°C) |
TABLE 3 – MATERIAL REQUIREMENTS
| Minimum Material Requirements | |||
|---|---|---|---|
| Material Class | Body, Bonnet end & outlet connections |
Pressure-Controlling parts & stems |
|
| AA | General service | Carbon or Low-alloy steel | Carbon or Low-alloy steel |
TABLE 4 – TECHNICAL DATA
| Series | Height (A) | Diameter (D) |
|---|---|---|
| 550 | 21 1/2 | 7 1/4 |
| 650 | 22 3/4 | 8 1/2 |
| 850 | 27 1/4 | 10 1/2 |
The dimensions B, C, and E vary for different series of Double Acting Hydraulic Actuators and different valve sizes chosen to accompany them.
