All-Stainless Steel Material
Product Overview
Spirax Sarco AE36 series automatic air vent valves are specifically designed for hot and cold water equipment, with core components (body and cap) made of 316L austenitic stainless steel, featuring excellent corrosion resistance and structural strength, adaptable to various complex water quality environments. The product range includes two models: standard AE36 and AE36A with check valve, meeting different requirements for air venting and backflow prevention, widely used in various liquid transmission systems.
Product Standards and Certificates
- Compliant with European Pressure Equipment Directive 97/23/EC, ensuring product safety and reliability under pressure conditions.
- EN 10204 3.1 material certificate available. If additional certificates are required, they must be clearly specified when ordering.
Key Technical Parameters
Pressure and Temperature Parameters
| Parameter Name | Value |
|---|---|
| Body Design Condition | PN10 |
| Maximum Allowable Pressure (PMA) | 10 bar g @ 150℃ |
| Maximum Allowable Temperature (TMA) | 150℃ @ 10 bar g |
| Minimum Allowable Temperature | -10℃ |
| Maximum Operating Pressure (PMO) | 10 bar g @ 110℃ |
| Maximum Operating Temperature (TMO) | 110℃ @ 10 bar g |
| Minimum Working Temperature | -10℃ |
| Maximum Pressure Differential (PMX) | 8 bar g |
| Design Maximum Cold Water Test Pressure | 15 bar g |
| Minimum Liquid Specific Gravity | 0.926 |
Port Sizes and Pipe Connections
| Connection Type | Specification |
|---|---|
| Inlet Connection | ½" BSP Female Thread or ½" NPT Female Thread |
| Outlet Connection | ¼" BSP Male Thread or ¼" NPT Male Thread |
Free Discharge
- Reference Condition: At air temperature of 16℃, discharge varies with pressure differential (refer to product discharge curve chart for details).
- Temperature Correction Formula: Actual Discharge = Chart Discharge × (273 + T) / 289 (T is actual air temperature, default air temperature equals water temperature).
Dimensions and Weight
| Model | Dimension A (mm) | Dimension B (mm) | Dimension C (mm) | Weight (kg) |
|---|---|---|---|---|
| AE36 | 56 | 10 | 105 | 0.7 |
| AE36A | 56 | 10 | 105 | 0.7 |
Component Material Details
| No. | Component Name | Material | Standard/Additional Notes |
|---|---|---|---|
| 1 | Cap | Austenitic Stainless Steel 316L | ASTM A351 CF3M |
| 2 | Cap "O" Ring | Green Fluorocarbon Rubber 75 | - |
| 3 | Body | Austenitic Stainless Steel 316L | ASTM A351 CF3M |
| 4 | Float | Acetal co hostaform/Stainless Steel | - |
| 5 | Valve Plug | EPDM | - |
| 6 | Valve Seat | Stainless Steel | BS 970 431 S29 |
| 7 | Bracket/Rod Assembly | Stainless Steel | BS 1449 304 S11 |
| 8 | Screw | Stainless Steel | BS 4183 18/8 |
| 9 | Check Valve Ball | Stainless Steel | AISI 440 B (only for AE36A) |
| 10 | Spring Retaining Ring | Stainless Steel | BS 970 302 S25 |
Installation and Safety Information
Installation Requirements
- The automatic air vent valve must be installed vertically with the inlet end at the bottom to ensure proper float triggering for air venting.
- It is recommended to connect the outlet end to a drain pipe to guide discharged air or accumulated liquid to a designated location, avoiding site clutter.
- For detailed installation, maintenance steps, and safety precautions, please refer to the Installation and Maintenance Guide (IM-P017-03) provided with the product.
Recommended Tightening Torque
| Part No. | Component Description | Specification | Tightening Torque (Nm) |
|---|---|---|---|
| 1 | - | 30 mm | 10 - 12 |
| 8 | Pan Head | M4X6 | 2.5 - 2.8 |
Spare Parts Information
Available Spare Parts List
| Spare Part Type | Included Components | Corresponding Part No. |
|---|---|---|
| Maintenance Assembly | Valve Plug, Float, Cap "O" Ring, Check Valve Ball, Check Valve Spring Retaining Ring | 2, 4, 5, 9, 10 |
Spare Parts Usage Instructions
- Early product AE36CV (operating range 3-8bar) cannot use AE36A spare parts and must use corresponding early dedicated spare parts.
- Spare parts compatibility with current AE36 and AE36A models must be based on product port size and model, which must be clearly specified when ordering.
Ordering Information
Ordering Examples
- 1-Spirax Sarco ½" AE36A automatic air vent valve, with check valve, BSP threaded connection.
- 1-Maintenance assembly for ½" Spirax Sarco AE36A automatic air vent valve.
Ordering Notes
- When ordering, clearly specify product model (AE36/AE36A), port size, and thread type (BSP/NPT).
- If certificates other than EN 10204 3.1 material certificate are required, they must be specifically stated when ordering.
- When ordering spare parts, specify the port size and model of the corresponding automatic air vent valve to ensure spare parts compatibility.
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