Product Introduction
Our SANYI SU ram BOP parts lineup includes complete repair kits and replacement components for all critical BOP sections: bonnet sealing systems, upper/lower shear ram assemblies, variable bore rams, tandem boosters, and full pipe/blind ram sets. Crafted from high-grade oil-resistant elastomers, wear-resistant plastic packings, and forged steel ram blocks, each component undergoes pressure testing, dimensional verification, and material certification to match SU OEM performance standards. This comprehensive selection supports full BOP overhauls, targeted seal repairs, and shear ram blade replacements, making it the definitive sourcing solution for SANYI SU 13-5/8” 3K/5K/10K U-type BOP maintenance.
Functional Capabilities
- High-Pressure Bonnet Sealing: Bonnet rebuild soft goods kits (plastic packing, energizing rings, O-rings) create leak-proof seals at bonnet joints, retaining hydraulic pressure up to 10,000 PSI.
- Well Shearing & Sealing: Upper/lower shear ram blocks and blade seals enable emergency drill pipe shearing and full wellbore sealing, critical for blowout prevention.
- Variable Pipe Compatibility: VBR ram assemblies seal on multiple pipe sizes (2-7/8” to 7”), delivering flexible well control for varying drill string diameters.
- Hydraulic Actuation Support: Tandem booster repair kits maintain stable hydraulic pressure for smooth ram opening/closing, ensuring reliable BOP operation.
- Full Bore Sealing: Blind/pipe ram packers and top seals provide secure sealing on open hole or specific pipe sizes, supporting routine well control operations.
- Wear & Leak Protection: Backup rings, wear rings, and wiping seals extend component life and prevent hydraulic fluid contamination in operating cylinders.
Structural Design Features
- Exact SU OEM Fit: Precision-machined dimensions and SU OEM part number matching ensure seamless replacement, cutting installation time by up to 50%.
- High-Pressure Durability: Elastomer seals and metal components rated for 3K/5K/10K PSI, engineered to withstand pressure cycling and harsh well fluids.
- Oil & Chemical Resistance: Premium elastomer materials resist degradation from drilling fluids, hydraulic oil, and wellbore chemicals, extending seal life.
- Compliant Certification: All parts include CO and COC documentation, meeting API 16A and global well control regulatory requirements.
- Modular Repair Design: Individual seal kits and ram components enable targeted repairs, minimizing waste and lowering long-term BOP maintenance costs.
Applicable Operating Conditions
These SANYI SU ram BOP components are engineered to perform reliably in rigorous well control scenarios, including:
- SANYI SU 13-5/8” U-type ram BOPs (3000 PSI, 5000 PSI, 10,000 PSI ratings)
- Onshore/offshore oil, gas, and geothermal drilling well control systems
- Emergency shear sealing, routine pipe sealing, and BOP recertification
- Harsh environments with abrasive well fluids, high vibration, and pressure cycling
- Mandatory BOP maintenance, field repairs, and regulatory compliance checks
Maintenance & Service Recommendations
- Inspect bonnet seals and ram packers every 6 months for wear, swelling, or cracking; replace complete soft goods kits during mandatory BOP recertification.
- Lubricate operating pistons and rod seals with approved high-pressure hydraulic fluid during assembly to prevent dry start wear and seal damage.
- Test shear ram blade integrity and sealing pressure quarterly; replace worn blade seals and side packers to ensure reliable emergency shearing.
- Check tandem booster cylinder seals and wear rings for leakage annually, replacing repair kit components to maintain stable hydraulic actuation pressure.
- Store elastomer seals and packers in a cool, dark, dry environment to prevent premature degradation from UV light and extreme temperatures.
- Verify CO and COC documentation for all parts prior to installation to ensure regulatory compliance and OEM quality.
- We supply the following spare parts:
| NO. | Description (Spare Parts for SHEAR RAM) | Qty | Unit | Notes |
| 13-5/8” 5000psi Bonnet Rebuild Soft goods Kits | Origin Must be ChinaManufactured by SU companyCertificate of Origin must be providedCOC must be provided | |||
| 1 | Ring, Plastic Packing PN: SU353519 | NOS | ||
| 2 | Ring, Plastic Energizing PN: SU353517 | |||
| 3 | Seal Ring, Connecting Rod PN : SU353526 | |||
| 4 | Ring Back-up PN: SU353520 | |||
| 5 | Seal, Bonnet PN : SU353506 | |||
| 6 | O-Ring, Operating Cylinder PN : 132-458 | |||
| 7 | O-Ring, Operating piston Rod tointFIg PN : 13100.96-7.8 | |||
| 8 | Seal, Operating piston PN: SU353525 | |||
| 9 | Seal Ring, Tail Rod PN : SU353511 | |||
| 10 | O-Ring. Wiping PN: 132-337 | |||
| 11 | O-Ring, Ram Change Piston to Body PN : 132-328 | |||
| 12 | O-Ring, Ram Change Piston Rod to IntFIg PN : 132-333 | |||
| 13 | O-Ring, Ram Change Cylinder to IntFig PN : 132-346 | |||
| 14 | O-Ring, Ram Change Cylinder to Bonnet PN: 132-425 | |||
| 15 | O-Ring, Ram Change piston PN: 132-338 | |||
| 16 | Wear Ring, Operating piston PN : SU353510-2 | |||
| The Shear Ram of 13 5/8″ 3k, 5k, 10k U type Bop upper shear Ram Assembly | ||||
| 17 | Block, upper shear Ram PN: SU-DS3570S. 1-1 | NOS | ||
| 18 | Blade seal PN: SU-DS3570S.1-4 | |||
| 19 | Blade seal PN: SU-DS3570S. 1-5 | |||
| 20 | Side packer PN: SU-DS3570S.1-3 | |||
| 21 | Side packer PN: SU-DS3570S. 1-2 | |||
| 22 | Top seal PN: SU-DS3570X.1-4 | |||
| The Shear Ram of 13-5/8″ 3k/5k/10k/ U type Bop Lower shear Ram Assembly. | ||||
| 23 | Block, Lower shear Ram PN: SU-DS3570X.1-1 | NOS | ||
| 24 | Side packer PN: SU-DS3570X.1-3 | |||
| 25 | Side packer PN: SU-DS3570X.1-2 | |||
| The Variable Bore Ram Of 13 5/8″ 3K,5K, 10K | ||||
| 26 | 5” -2 7/8” BlocK,VBR Ram PN: SU-VBR 3570.3-1 | NOS | ||
| 27 | Top Seal PN: SU-VBR 3570.3-2 | |||
| 28 | 5″ -2 7/8″ Packer, VBR Ram PN: SU-VBR 3570.3-3 | |||
| 29 | 7” – 4 1/2″ BlocK, VBR Ram PN: SU-VBR 3570.1-1 | |||
| 30 | Top Seal PN : SU-VBR 3570.1-2 | |||
| 31 | 7” – 4 ½” Packer, VBR Ram PN: SU-VBR 3570.1-3 | |||
| Repair Kit for 13-5/8″ 5000psi Tandem Booster | ||||
| 32 | O-Ring. Cylinder PN: 132-453 | NOS | ||
| 33 | Lip Seal, Operating piston PN: SU532125 | |||
| 34 | Wear Ring, Operating piston PN: SU532110-2 | |||
| 35 | Wear Ring. piston I.D. PN: SU3570CL-31-02 | |||
| The pipe Ram of 13-5/8″ 3k, 5k, 10k U type Bop. | ||||
| 36 | Blok, Blind Ram PN: SU3570.1-1 | NOS | ||
| 37 | Top Seal PN: SU3570-T | |||
| 38 | Packer, Blind Ram PN: SU3570.1-2 | |||
| 39 | 2-3/8” Packer PN: SU3570.2-2 | |||
| 40 | 2-7/8″ Packer PN: SU3570.3-2 | |||
| 41 | 3-1/2″ Packer PN: SU3570.4-2 | |||
| 42 | 4” Packer PN: SU3570.5-2 | |||
| 43 | 4-1/2″ Packer PN: SU3570.6-2 | |||
| 44 | 5″ Packer PN: SU3570.7-2 | |||
| 45 | 5-1/2” Packer PN: SU3570.8-2 | |||
| 46 | 7” Packer PN: SU3570.9-2 | |||
| 47 | 9-5/8″ Packer PN: SU3570.10-2 | |||
Field Failure Repair Case Studies
Case 1: BOP Bonnet Hydraulic Leakage
A SANYI SU 13-5/8” 5K BOP experienced severe hydraulic leakage at the bonnet joint due to worn packing and energizing rings. Installing the complete bonnet rebuild soft goods kit eliminated leaks and restored pressure retention.
Case 2: Shear Ram Seal Degradation
Worn blade seals and side packers on an upper shear ram caused incomplete well sealing during pressure testing. Replacing SU-DS3570S series shear ram seals restored full high-pressure sealing integrity.
Case 3: VBR Ram Pipe Sealing Failure
A variable bore ram failed to seal on 5” drill pipe due to degraded top seals and packers. Fitting SU-VBR 3570 series VBR ram seals enabled consistent, leak-free sealing across multiple pipe sizes.
Frequently Asked Questions (FAQ)
| Question | Answer |
| Are these parts compatible with all SANYI SU 13-5/8” BOP pressure ratings? | Yes, these components fit 13-5/8” U-type SANYI SU BOPs rated for 3000 PSI, 5000 PSI, and 10,000 PSI operations. |
| Do these parts include required certification documents? | All parts include full Certificate of Origin (CO) and Certificate of Conformity (COC), meeting API 16A well control standards. |
| Are these repair kits manufactured by SU (China origin)? | Yes, every component is SU-manufactured with confirmed China origin, matching OEM specifications for direct replacement. |
Procurement Guidance
For well control teams and maintenance crews responsible for SANYI SU 13-5/8” 3K/5K/10K ram BOPs, this catalog is your definitive sourcing solution for certified, OEM-matched spare parts. It provides full transparency on part descriptions, SU OEM part numbers, pressure ratings, certification details, and BOP compatibility, serving as both a formal procurement compliance standard and a practical field troubleshooting reference for BOP repairs and recertification. Whether you need bonnet soft goods kits for leakage fixes, shear ram components for emergency sealing, VBR parts for multi-pipe compatibility, or tandem booster kits for hydraulic maintenance, every part is engineered to resolve common BOP failures and deliver compliant, reliable well control performance. Submit your detailed inquiry with specific part numbers, required quantities, and BOP pressure rating details to secure precision-matched components tailored to your SANYI SU BOP needs. Our technical team provides full certification verification, compatibility checks, and on-site repair guidance to streamline your procurement process and ensure safe, efficient installation.
