11 inch 5,000 PSI Double Ram BOP, Shaffer-type, API 16A compliant. H2S rated. Interchangeable rams. Complete with pipe ram, blind ram, locking mechanism. CAMTOP manufactured BOP equipment.
11 inch 5000 PSI Double Ram BOP | Shaffer Type API 16A | H2S Service
Description
11″ 5,000 PSI Double Ram BOP (Shaffer Type)
API 16A | 11″ Bore | 5,000 PSI Working Pressure | H2S Service | Double Ram Configuration
Product Overview
The 11″ 5,000 PSI Double Ram BOP is a high-performance blowout preventer designed and manufactured in accordance with API 16A specifications. Engineered for demanding well control applications, this Shaffer-type double ram BOP provides dual ram cavities for flexible configuration with pipe rams, blind rams, or shear rams. Constructed from premium alloy steel with NACE-compliant materials for H2S service, it delivers reliable wellbore sealing in both onshore and offshore drilling environments.
Bore Diameter: 11″ (279 mm) | Working Pressure: 5,000 PSI (34.5 MPa) | Connection: R54 Studded | Weight: 9,900 lbs (4,491 kg)
Assembly Drawing & Dimensions
11″ 5,000 PSI Double Ram BOP General Assembly & Dimensional Schematic
Key Features
- API 16A Compliant Design: Manufactured to the latest API 16A specifications for blowout prevention equipment
- Shaffer-Type Interchangeable Rams: Ram assemblies are fully interchangeable with Shaffer BOP rams for operational flexibility
- High-Grade Alloy Steel Construction: Premium alloy steel body and components rated for H2S sour service environments
- Arc-Shaped Body Design: Curved body profile on both sides reduces stress concentration during high-pressure operations
- Sloped Bottom Cavity: Angled bottom surface allows debris to drain back into the wellbore, minimizing friction on rams
- Complete Manual Lock System: Integrated mechanical locking mechanism on all four rams for extended closure security
- Internal Hydraulic Piping: Protected internal piping design prevents damage during transportation, installation, and field operation
- Dual Seal System: Primary lip-type seals hold well pressure and operating pressure; secondary emergency seal system provides backup protection
- Dual Ram Cavities: Two independent ram cavities configurable with pipe rams, blind rams, shear rams, or variable bore rams
- Full Spare Parts Support: Complete range of OEM-spec replacement parts, seal kits, and maintenance components available
Technical Specifications
| Parameter | Specification |
|---|---|
| BOP Type | Double Ram BOP (Shaffer Type) |
| Design Standard | API 16A |
| Bore Size | 11 inch (279 mm) |
| Working Pressure | 5,000 PSI (34.5 MPa) |
| Top Connection | 11″ 5,000 PSI R54 Studded |
| Bottom Connection | 11″ 5,000 PSI R54 Studded |
| Side Outlets | 4-1/16″ |
| Service Rating | H2S Sour Service |
| Overall Dimensions (L/W/H) | 89.1″ x 53.9″ x 33.1″ (2,263 x 1,369 x 841 mm) |
| Net Weight | 9,900 lbs (4,491 kg) |
| Stud Size | 1-7/8″ x 9-1/2″ (12 pcs) |
| Nut Specification | 1-7/8″ – 8UN-2B (12 pcs) |
| Ring Gasket | R54 |
| Locking Mechanism | Manual Lock (4 sets) |
Scope of Supply (Standard Configuration)
| Item | Qty | Description |
|---|---|---|
| A | 1 Set | 11″ 5,000 PSI Single Ram BOP Assembly |
| B | 1 Set | 5″ Pipe Ram (2-7/8″, 3-1/2″, 4-1/2″, or 7″ per customer specification) |
| C | 1 Set | Blind Ram Assembly |
| D | 12 Pcs | Studs (1-7/8″ x 9-1/2″) |
| E | 12 Pcs | Nuts (1-7/8″ – 8UN-2B) |
| F | 1 Pc | Ring Gasket (R54) |
| G | 1 Pc | Wrench (S=75) |
| H | 1 Pc | Wrench (S=50) |
| I | 1 Pc | Wrench (S=38) |
| J | 4 Sets | Manual Locking Mechanism |
| K | 1 Set | Operation Manual, Parts List & Certificates |
| L | Optional | Recommended Spare Parts Package |
Recommended Spare Parts
| No. | Part Description | Specification | Qty |
|---|---|---|---|
| 1 | Side Door Seal | 400 x 7 | 4 |
| 2 | O-Ring, Cylinder | 230 x 7 | 8 |
| 3 | O-Ring, Cylinder | 25 x 3.55 | 8 |
| 4 | O-Ring | 22.4 x 3.55 | 16 |
| 5 | O-Ring, Piston | 75 x 5.3 | 4 |
| 6 | O-Ring, Hinge Pin | 38.7 x 3.55 | 40 |
| 8 | Piston Rod Seal Kit | — | 8 |
| 10 | Sealing Grease | SFZ1310-31 | 4 |
| 11 | Piston Rubber Ring | — | 8 |
| 12 | Locking Shaft Seal Kit | — | 4 |
Applications
- Onshore and offshore drilling rigs requiring API 16A compliant BOP stacks
- Well control during drilling, tripping, and well intervention operations
- H2S sour service drilling environments requiring NACE-compliant materials
- Workover and completion operations with tubing or casing strings up to 7″
- Modular BOP stack configurations with annular and other ram BOPs
Why Choose CAMTOP?
- API 16A compliant design and manufacturing with full material traceability
- ISO 9001 certified quality management system
- Rams fully interchangeable with Shaffer-type BOPs
- Complete quality documentation: MTRs, NDT reports, hydrostatic test records
- Custom configurations available upon request
- Competitive factory-direct pricing with global logistics
Contact Us
Email: sales@cposl.com
Phone: 86-18621723891
Web: www.camtop-oilfieldtools.com
Address: No. 432, Fute North Road, Pudong District, Shanghai, China
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