CAMTOP 11″ 3M WP Double Ram BOP — API SPEC 16A large-bore dual ram blowout preventer. 11-inch bore, 3,000 psi working pressure, NACE MR-0175 compliant. Dual cavity with pipe rams (2-3/8″ to 7″) and blind rams. Four 4-1/16″ 5M side outlets.
11″ 3M WP Double Ram BOP | API 16A | 3,000 PSI | CAMTOP
Description
11″ 3M WP Double Ram BOP 双闸板防喷器
API SPEC 16A | 11″ Bore | 3,000 PSI Working Pressure | NACE MR-0175
Product Overview
The 11″ 3M WP Double Ram BOP is a large-bore double ram blowout preventer designed for applications requiring a full 11-inch through-bore. With a 3,000 psi working pressure rating and API SPEC 16A compliance, it provides reliable well control for large-casing drilling programs and big-bore completion operations. The dual ram cavity design accommodates both pipe rams (2 3/8″ through 7″) and blind rams. Four 4 1/16″ 5M studded side outlets offer generous flow capacity for choke and kill operations.
Bore: 11″ (279.4 mm) | Working Pressure: 3,000 psi | Test Pressure: 4,500 psi | Weight: 14,528 lb (6,590 kg) | Standard: API SPEC 16A / NACE MR-0175
Product Image
CAMTOP 11″ 3M WP Double Ram BOP — Large-bore dual-ram configuration for big-casing drilling programs
Assembly Drawing
CAMTOP 11″ 3M WP Double Ram BOP General Assembly Drawing — For reference only
Key Features
- 11-Inch Large Bore: Full 11-inch (279.4 mm) through-bore accommodates large casing sizes and big-bore drilling programs
- API SPEC 16A Compliant: Designed and manufactured to international standards for ram blowout preventers
- 3,000 PSI Working Pressure: Rated for 3,000 psi with 4,500 psi hydrostatic body test pressure
- Dual Ram Cavity: Independent upper and lower ram cavities accommodate pipe rams and blind rams simultaneously
- NACE MR-0175 Compliant: Suitable for H2S sour service environments with appropriate material selection
- 4 1/16″ 5M Side Outlets: Four large-bore 4 1/16″ studded side outlets for high-flow choke and kill operations
- Ni-Based Alloy 625 Ring Grooves: All ring grooves welded with nickel-based alloy 625 for superior corrosion protection
- 8.75″ Cylinder Diameter: High-capacity hydraulic cylinders for positive ram actuation in large-bore applications
- Wide Pipe Range: Accommodates tubular sizes from 2 3/8″ through 7″ for maximum operational flexibility
- Manual Locking Screws: Positive mechanical ram locking for position retention when hydraulic pressure is removed
- T-20 Temperature Rating: Metal materials rated for -29°C to +121°C; BD-rated non-metal seals
- R53 Flanged Connections: API R53 5M flanged top and bottom for secure integration with 11-inch wellhead equipment
Technical Specifications
| Item | Specification |
|---|---|
| Model | 11″ -3M WP Double Ram BOP |
| Nominal Bore | 11″ (279.4 mm) |
| Working Pressure | 3,000 psi (20.7 MPa) |
| Hydrostatic Test Pressure | 4,500 psi (31.0 MPa) |
| Top Connection | 11″ -5,000 psi R53 Flanged |
| Bottom Connection | 11″ -5,000 psi R53 Flanged |
| Side Outlets (x4) | 4 1/16″ -5,000 psi Studded |
| Cylinder Diameter | 8.75″ |
| Open Hydraulic Fluid | 2.9 gal (11.0 L) |
| Close Hydraulic Fluid | 3.2 gal (12.1 L) |
| Hydraulic Control Pressure | ≤ 1,500 psi (10.3 MPa) |
| Hydraulic Connection | NPT 1″ |
| Ram Cavity Configuration | Dual Cavity — Pipe Ram + Blind Ram |
| Pipe Ram Range | 2 3/8″ ~ 7″ |
| Overall Dimensions (LxWxH) | 103.77″ x 38.81″ x 42.71″ (2,636 x 986 x 1,085 mm) |
| Net Weight | 14,528 lb (6,590 kg) |
| Design Standard | API SPEC 16A / API SPEC 16E |
| Sour Service | NACE MR-0175 / ISO 15156 Compliant |
| Temperature Rating (Metal) | T-20: -29°C to +121°C |
| Temperature Rating (Non-Metal) | BD: -18°C to +121°C |
Material Specifications
| Component | Material |
|---|---|
| Pressure-Containing Parts (Ram BOP Body, Intermediate Flange) |
Low Alloy Steel (Qualified Casting) |
| Connection Studs | AISI 4142 (42CrMo) Alloy Steel |
| Nuts | AISI C1045 (45) High Carbon Steel |
| Ring Groove Overlay | Nickel-Based Alloy 625 Stainless Steel Welding |
| Ram Blocks | Qualified Alloy Steel |
Spare Parts List
| Part | Qty |
|---|---|
| Bonnet Gasket | 4 |
| Ram Shaft Seal Ring | 4 |
| Cylinder Head O-Ring | 4 |
| Plastic Protection Ring | 4 |
| Pipe Ram Top Seal | 2 |
| Blind Ram Top Seal | 2 |
| Pipe Ram Front Packer | 2 |
| Blind Ram Front Packer | 2 |
| Piston O-Ring | 4 |
| Pipe Plug NPT 1″ | 8 |
Applications
- Large-casing drilling programs requiring 11-inch through-bore
- Big-bore completion and well testing operations
- Shallow gas and intermediate-depth wells with moderate pressure requirements
- Workover and well intervention with large-diameter tubulars
- Sour service (H2S) environments with NACE MR-0175 compliance
Why Choose CAMTOP?
- API SPEC 16A compliant design and manufacturing with full traceability
- ISO 9001 certified quality management system ensuring consistent product quality
- 11-inch large bore optimized for big-casing drilling and completion programs
- Complete documentation package: material certificates, NDE reports, pressure test records, and operation manuals
- Ni-based Alloy 625 ring grooves for long-term corrosion protection
- Competitive factory-direct pricing with global shipping
- Technical support including installation guidance and maintenance training
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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