API 11B Polished Rod Wellhead Stuffing Box DPSB 

  Overview of the Double-Layer Stuffing Box for API 11B Wellhead Tool 1. Tool Description:    - The API 11B wellhead tool, known as a double-layer stuffing box, is designed to seal the polished rod at a pumping wellhead.    - It is available in two options: single pack and double pack.    - Materials for components include 1045/4130 casting steel or ductile iron, based on customer demand. 2. Key Components:    - The stuffing box includes a cross shell, seal gate valves, sealing pin, sealing cap, and rubber packing.    - Features a misaligning capability to reduce the need for precise alignment with the pumping unit.    - Incorporates cone packing and a lubricated upper gland (LUG) with a grease zerk for rod lubrication.    - Optional components like an oil reservoir gland (ORG) and an anti-pollution adapter (APA) are available. 3. Specifications:    - Working Pressure: 1500 psi  …