API 6A Fig 1003 Mud Gate Valve 4" 15K Psi Forged Body

• Customization: Available
• After-sales Service: 24/7
• Warranty: 1 Year
• Model NO.: Mud Gate Valve
• Manufacturing Process: Forging
• Surface Treatment: Polishing
• Operation Pressure: 5000-15000psi
• Material: Alloy
• Standard or Nonstandard: Standard
• Media: Oil/Water/Mud
• Working Pressure: 70MPa
• Use: Well Drilling
• Transport Package: Export Package
• Specification: 2", 3", 4", 5" Valve Sizes
• Trademark: GPE
• Origin: China
• HS Code: 8431
• Production Capacity: 150000
• Package Size: 75.00cm * 55.00cm * 55.00cm
• Package Gross Weight: 45.000kg

Product Description

Factory outlet API 6A 4inch demco fig 1003 mud gate valve
Mud Gate Valve
demco fig 1003  mud gate valve
4inch demco fig 1003  mud gate valve

The union ends mud gate valve is mainly used for drilling mud circulating system in oil field. It is used to control the flowing and stopping of mud and is joined by trapezoid thread connection, can be installed quickly and conveniently. The equipment has strong rigidity which is safe and reliable, The union ends mud gate valve seat and gate are sealed by means of parallel-type Metal to Metal Sealing, its sealing effect is good, and it is convenient for opening, Two ends of the valve and pipes are connected by spherical movement. The movable connection of the rubber seal ring like "O" is not of high requirement about straightness of the two ends of pipes, its seal performance is very good after installed.




API 6A Union-End Mud Gate Valve | Drilling Circulation System Control
Rapid-Deployment Trapezoidal Thread Connection with Metal-to-Metal Sealing

Engineered for critical drilling mud circulation systems, this union-end gate valve delivers positive shutoff of abrasive slurries. Featuring API-specified trapezoidal thread connections (e.g. API Line Pipe Thread), it enables 5-minute field installation without flange alignment tools. The monolithic cast body exceeds API 6A PSL 2 rigidity requirements with 1.8x safety factor at 10,000 PSI WP.
 

Sealing Technology

 

Primary Metal Seal System

• Parallel Dual-Seat Design:

  • ASTM A182 F6a hardened seats (HRC 45-50) + 13Cr chrome-plated gate

  • Zero-leakage per API 598 Annex B (Bidirectional Class VI)

• Self-Cleaning Wedge Action:
  Abrasion-resistant stellite overlays (AWS ERCoCr-A) prevent jamming in >15% solids mud

Union Connection Advantages

• Spherical Swivel Joint:

  • ±4° angular misalignment compensation (vs. 1° for flanges)

  • Eliminates pipe stress-induced seat distortion

• Live-Loaded O-Ring Seal:

  • FKM elastomer (NORSOK M-710 Grade CD) + anti-extrusion rings

  • Maintains seal at 2,000+ thermal cycles (-29°C to 121°C)