API 7K Certified Safety Clamps for Tubular Operations - High Strength from China Suppliers & Factory
WA Series Safety Clamps
WA Safety Clamps: Used for handling flush joint pipes and drill collars, preventing accidental tubular drops during make-up or break-out of drilling equipment.
| Model | Size Range (in) | Total Number of Links |
|---|---|---|
| WA-C | 3-3/4 ~ 4-5/8 | 7 |
| 4-1/2 ~ 5-5/8 | 8 | |
| 5-1/2 ~ 6-5/8 | 9 | |
| 6-1/2 ~ 7-5/8 | 10 | |
| 7-1/2 ~ 8-5/8 | 11 | |
| 8-1/2 ~ 9-5/8 | 12 | |
| 9-1/2 ~ 10-5/8 | 13 | |
| 10-1/2 ~ 11-5/8 | 14 | |
| 11-1/2 ~ 12-5/8 | 15 | |
| 12-1/2 ~ 13-5/8 | 16 | |
| 13-1/2 ~ 14-5/8 | 17 | |
| 14-1/2 ~ 15-5/8 | 18 | |
| WA-T | 1-1/8 ~ 2 | 4 |
| 2-1/8 ~ 3-1/4 | 5 | |
| 3-1/2 ~ 4-1/2 | 6 |
MP Safety Clamps: Adjustable by adding or removing chain links, ideal for handling drill collars and flush joint pipes of varying diameters.
| Type | Pipe O.D (in) | No. of Chain Links |
|---|---|---|
| MP-S | 2-7/8 ~ 4-1/8 | 7 |
| 4 ~ 5 | 8 | |
| MP-R | 4-1/2 ~ 5-5/8 | 7 |
| 5-1/2 ~ 7 | 8 | |
| 6-3/4 ~ 8-1/4 | 9 | |
| 8 ~ 9-1/4 | 10 | |
| 9-1/4 ~ 10-1/2 | 11 | |
| MP-M | 10-1/2 ~ 11-1/2 | 12 |
| 11-1/2 ~ 12-1/2 | 13 | |
| 12-1/2 ~ 13-5/8 | 14 | |
| 13-5/8 ~ 14-3/4 | 15 | |
| 14-3/4 ~ 15-7/8 | 16 | |
| MP-L | 15-7/8 ~ 17 | 17 |
| 17 ~ 18-1/2 | 18 | |
| 18-1/8 ~ 19-3/8 | 19 | |
| MP-XL | 19-3/8 ~ 20-3/8 | 19 |
| 20-3/8 ~ 21-1/2 | 20 | |
| 21 ~ 22-5/8 | 21 | |
| 22-5/8 ~ 23-3/4 | 22 | |
| 23-3/4 ~ 24-7/8 | 23 | |
| 24-7/8 ~ 26 | 24 | |
| 26 ~ 27-1/8 | 25 | |
| 29-3/8 ~ 30-1/2 | 28 | |
| 35 ~ 36-1/8 | 33 |
Safety Clamp Features
High Strength: High strength alloy steel with controlled heat treatment for optimal toughness and wear resistance.
Load Distribution: Multi-link chain structure distributes radial load evenly, reducing stress concentration and surface damage on tubulars.
API Spec 7K Compliant: All clamps undergo proof-load testing and dimensional verification to ensure strict API Spec 7K compliance.
Highly Adjustable: Adjustable configurations accommodate a wide operational range without sacrificing grip security.
Frequently Asked Questions (FAQ)
What are WA Series Safety Clamps used for?
They are primarily used for handling flush joint pipes and drill collars. Their main function is to prevent accidental tubular drops during the make-up or break-out processes of drilling equipment.
What is the size range accommodated by the WA-C model?
The WA-C model is highly versatile, accommodating pipe sizes ranging from 3-3/4 inches up to 15-5/8 inches, utilizing between 7 and 18 chain links depending on the specific pipe diameter.
How do MP Safety Clamps adjust to different pipe diameters?
MP Safety Clamps are designed to be easily adjustable by simply adding or removing chain links. This makes them ideal for handling drill collars and flush joint pipes of varying sizes safely and securely.
What material are these safety clamps made from?
The safety clamps are manufactured from high-strength alloy steel. They undergo a controlled heat treatment process to ensure optimal toughness and exceptional wear resistance in harsh drilling environments.
Are the safety clamps compliant with industry standards?
Yes, all clamps undergo rigorous proof-load testing and precise dimensional verification to ensure full compliance with API Spec 7K standards.
How does the multi-link chain structure benefit the tubulars?
The multi-link chain design evenly distributes the radial load across the pipe. This significantly reduces stress concentration and prevents surface damage or crushing on the tubulars being handled.