API 6A Shear Pin Safety Relief Valve
Description
TECHNICAL DATA SHEET – API 6A SHEAR PIN SAFETY VALVE
| Parameter | Specification |
|---|---|
| Product Model | QZL1-SF-35 |
| Design & Manufacture Standard | API Specification 6A |
| Pressure Rating (Working Pressure) | 2000 psi, 3000 psi, 5000 psi, 10000 psi, 15000 psi |
| Nominal Size (Bore) | 46 mm (1-13/16″) to 180 mm (7-1/16″) |
| Shear Pin Specification | Diameter: 6.7 mm (Customizable for specific set pressure) |
| Product Specification Level (PSL) | PSL 1, PSL 2, PSL 3, PSL 3G |
| Performance Requirement (PR) | PR1, PR2 |
| Material Class (per API 6A) | AA, BB, CC, DD, EE, FF, HH (Sour Service) |
| Temperature Rating | Grade K (-46°C to 82°C), Grade L (-46°C to 121°C) |
| Service Media | Oil, Natural Gas, Drilling Mud, Sour Service (H₂S) |
| Body Material | Forged Alloy Steel (e.g., A694 F60) per selected Material Class |
| End Connection | API 6A Flanges (6B or 6BX Type) |
| Reset Requirement | Mandatory replacement of the certified shear pin after activation. Weekly replacement recommended as preventative maintenance. |
| Weight (Approx.) | 35 kg (Varies by size and pressure rating) |
Key Notes:
-
Set Pressure: Determined by the shear pin’s diameter and material. Only use manufacturer-certified pins.
-
Safety Warning: Never use makeshift parts (e.g., bolts) to replace the shear pin.
