The Valveworks USA Diaphragm Pneumatic Series includes high-performance pneumatic actuators designed for reliable operation in wellhead and tree equipment. This series offers multiple options depending on gate valve size and pressure, and provides parts interchangeability and efficient lifecycle management.
Diaphragm Pneumatic Series
The Valveworks USA Diaphragm Pneumatic Series consists of a lineup of actuators with reliable, proven designs that are engineered and manufactured to meet the requirements of wellhead and tree equipment. The Diaphragm Pneumatic Actuation allows for pneumatic-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.
Diaphragm Pneumatic Actuators are similar to each other in design with only slight variations across the lineup, offering a high percentage of parts interchangeability. This provides an efficiency-driven advantage in managing and maintaining your actuator fleet, and supports 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.
PDF BrochureThe interactive tabbed diagram below provides a detailed cutaway of the Valveworks USA Diaphragm Pneumatic Actuator. It illustrates internal components such as the diaphragm, top cap, actuator stem, and other sealing elements. This visual aid helps users understand the construction and function of the pneumatic actuator series, which is used to open and close gate valves using pneumatic power. Designed for reliable performance in wellhead and tree equipment applications.
Diaphragm Pneumatic Actuator
PRODUCT FEATURES
The following table provides detailed specifications for Valveworks USA Diaphragm Pneumatic Actuator models, including 100, 120, 150, and 200 Series. Each model varies in bore size, pressure ratings, material class, repacking options, and temperature range, and is engineered for reliable performance in pneumatic gate valve operations.
| Key Features | 100 Series | 120 Series | 150 Series | 200 Series |
|---|---|---|---|---|
| Available Valve Bore Sizes & Working Pressures (PSI) | 2 1/16” 2/5K |
2 1/16” 2/5K 2 9/16” 2/5K 3 1/8” 2K |
1 13/16” 10K 2 1/16” 10K 3 1/8” 3/5K 4 1/16” 2/5K |
2 9/16” 15K 3 1/8” 10K 4 1/16” 15K 5 1/8” 5K 7 1/16” 2/3K |
| Maximum Operating Pressure (PSI) | 150 | 150 | 150 | 150 |
| Available PR(a) | 1 | 1 | 1 | 1 |
| Material Classes | AA | AA | AA | AA |
| Stem Type | Rising | Rising | Rising | Rising |
| Stem Packing Type | Opti-seal | Opti-seal | Opti-seal | Opti-seal |
| Repacking | YES(b) | YES(b) | YES(b) | YES(b) |
| Temperature Range | -20°F (-29°C) THRU 180°F (82°C) | -20°F (-29°C) THRU 180°F (82°C) | -20°F (-29°C) THRU 180°F (82°C) | -20°F (-29°C) THRU 180°F (82°C) |
a) Performance Requirement.
b) Repacking is achieved via stem backseat method.
TEMPERATURE RATING
The following chart outlines temperature classifications for Valveworks USA Diaphragm Pneumatic Actuators. Each classification corresponds to an operating temperature range, ensuring performance under specific environmental and field conditions.
| 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) |
This section presents detailed specifications for the Valveworks USA Diaphragm Pneumatic Actuators, covering both minimum material requirements and technical data. Table 1 defines the material class AA for general service applications, while Table 2 outlines actuator height and diameter dimensions for the 100, 120, 150, and 200 series. The diagram provides a visual guide to these dimensions.
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 |
TECHNICAL DATA
| Series | Height (A) | Diameter (D) |
|---|---|---|
| 100 | 13 3/4 | 12 7/8 |
| 120 | 15 1/2 | 15 1/8 |
| 150 | 17 1/4 | 18 3/8 |
| 200 | 22 1/4 | 23 1/2 |
The dimensions B, C, and E vary for different series of Diaphragm Pneumatic Actuators and the valve sizes used with them.
