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Precision Oilfield
Union Solutions

Manufacturer of API 6A, 16A Compliant Hammer Unions, Seal-O-Grip, Mud Tank Unions, Flanges & Casing Protectors

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Trusted Manufacturer of High-Pressure Oilfield Unions

Xi’an Chancemate Petroleum Mechanical Co., Ltd is a leading professional manufacturer of wellhead and well control equipment, specializing in high-integrity hammer unions, Seal-O-Grip systems, mud tank connections, and API-compliant flanges and fittings.

With strict adherence to API 6A, API 16A, API 16C, and API 16D standards, our products are engineered for reliability in extreme downhole conditions, including H2S service and high-pressure drilling environments.

20+
Years Industry Experience
98%
Customer Retention Rate
Manufacturing Facility

Our Premium Products

Engineered to API Standards for Maximum Reliability in Oil & Gas Applications

KEMPER Seal-O-Grip Union

KEMPER Seal-O-Grip Union

Sizes: 6" to 24", designed for quick-connect applications in mud systems and manifold lines.

  • • API 6A Compliant
  • • Air-operated for fast engagement
  • • Leak-proof sealing under high pressure
Hammer Union

Hammer Union (FIG 1502 to 2202)

Available in FIG 100, 200, 602, 1002, 2002, 2202 – from 2" to 10".

  • • Forged carbon steel construction
  • • Rated up to 15,000 PSI
  • • Ideal for frac lines and high-pressure service
Mud Tank Union

Kemper Mud Tank Union

Sizes 6" to 16", used in mud circulation systems and tank connections.

  • • Heavy-duty design
  • • Corrosion-resistant coating
  • • Quick assembly/disassembly
API 6A Flange

API 6A Weld Neck Flange

Available in ASTM A105, SS316L – up to 29.5", 500 PSI.

  • • Double Studded Adapter Flange (DSAF)
  • • Butt weld SCH XXS
  • • H2S sour service compliant
Casing Protector

Clamp-On Casing Protector

Sizes 2 3/8" to 24", Klepo & HDH type thread protectors.

  • • Air-operated models available
  • • Protects casing threads during transport
  • • Reusable and durable

Swivel Joint & Plug Valve

H2S service plug valves and rotating swivel joints for flexible connections.

  • • Full port design
  • • Anti-static & fire-safe
  • • API 6A certified

Tee, Cross & Pup Joints

ASTM A234 WPB elbows, tees, crosses, and integral pup joints.

  • • Seamless and welded options
  • • Sch 40 to XXS wall thickness
  • • NACE MR0175 compliant

API 6A Spacer & Drilling Spools

Used in wellhead and blowout preventer systems.

  • • 16A compliant
  • • Custom lengths and ratings
  • • Integral or flanged ends

Why Choose Seal-O-Grip Hammer Union?

Engineered for Performance, Built for Durability

API Certified Quality

All products manufactured to API 6A, 16A, 16C, and 16D standards with full traceability and NDT testing.

Advanced Manufacturing

State-of-the-art CNC machining, forging, and heat treatment processes ensure precision and consistency.

Global Supply Network

Trusted by oil & gas operators worldwide with fast shipping and responsive technical support.

500+
Products in Catalog
45+
Countries Served
99.7%
On-Time Delivery
24/7
Customer Support

Frequently Asked Questions

What standards do your hammer unions comply with?

Our hammer unions are manufactured in accordance with API 6A specifications, including FIG 1502, 2002, 2202, and other configurations. All materials and testing follow API 6A, 16A, and NACE MR0175 for sour service.

Can you customize flanges and unions?

Yes, we offer OEM and ODM services. We can manufacture custom sizes, pressure ratings, materials (carbon steel, stainless steel, alloy), and coatings based on your drawings or specifications.

Do you provide H2S service-rated products?

Absolutely. We produce plug valves, flanges, and unions compliant with NACE MR0175/ISO 15156 for sour service environments with high H2S content.

What is the lead time for bulk orders?

Typical lead time is 30-45 days depending on order size and complexity. We maintain inventory of popular sizes for faster delivery.

Get in Touch

Reach out for quotes, technical support, or product inquiries.

Email: sales@sealogriphammerunion.com

Phone: +86 19937228526

Address: No.105 Dongguan South Street, Beilin District, Xi’an City, Shaanxi Province, China

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