BOP Spare Parts – Packing Elements, Ram Packings & Seal Kits

Rams Annular Blowout Preventer Rubber Sealing Packing

RIGRS supplies replacement sealing and wear parts for annular and ram blowout preventers. Common requirements include annular packing elements, ram packers, top seals, bonnet seals, hydraulic seals and overhaul seal kits.
Replacement parts should be identified from the exact BOP model and service requirement rather than bore size alone.
We support OEM-compatible replacements after confirming your BOP type, bore size, working pressure, and part numbers (or photos). Material/compound options can be discussed based on service temperature and environment (including sour service requirements). Send your required list and we will propose compatible items with lead time and pricing.

Our Company has an advanced production line of rubber sealing products, which is equipped with physical analysis, mechanical performance testing, stepping high and low-temperature test devices, simulated deep-water environment test devices, special pressure test devices for factory tests, and other detection and test methods. It can develop rubber sealing products for petroleum machinery that are suitable for different working conditions such as high temperature, low temperature, high hydrogen sulfide, and so on.

Our can produce spherical rubber core and conical rubber core of various annular blowout preventers Rubber Sealing Packing Element with drift diameters from 4 3/4″ to 29 7/8″ and pressure ratings from 3000Psi-15000Psi; Various specifications of variable ram, shear ram, and pipe ram seals; Rotary BOP series seals; And other petroleum machinery seal products.

Need Replacement Elastomers?

To maintain the safety and pressure control of your drilling operations, we supply premium, API 16A certified Rubber Sealing Packing Elements and ram rubbers designed to fit your specific annular and ram BOP models.Please send your procurement requirements.

RS Ram BOP VBR – Rubber Sealing Packing Element

The variable diameter ram assembly consists of small variable ram assembly and large variable ram assembly, which can seal pipe strings of various specifications. The range of small variable ram sealing string is not more than 2 inches, the range of large variable ram assembly sealing string can be more than 4 inches, and the maximum sealing pressure rating can be up to 20000 psi. The variable ram assembly can realize the sealing of pipe strings of different specifications within a certain range, reduce the number of ram replacements on site, and improve the efficiency and benefit of drilling operations.

For a quick quote, send BOP type (annular/ram), bore size, working pressure, model/brand, parts list (or photos), quantity, and destination port.

Does the Same Bore Size Mean BOP Parts Are Interchangeable?

No. BOP parts can differ by manufacturer, model, pressure rating, cavity design, material and product revision even when nominal bore size is the same.
Always confirm the exact BOP model or critical dimensions before ordering replacement parts.

Elastomer Compound Selection Guide for BOP Packing Elements

Choosing the right rubber compound is critical to balance sealing integrity and service life under specific downhole environments. We engineer our BOP rubber sealing elements in accordance with API Spec 16A standards using premium, rigorously tested elastomers:
Natural Rubber (NR) Compounds: Formulated primarily for water-based drilling muds. Offers exceptional mechanical performance, high resilience, and outstanding tearing resistance in temperate or low-temperature environments.
Nitrile Rubber (NBR / Buna-N): The industry standard for oil-based muds (OBM), synthetic drilling fluids, and hydrocarbon exposure. Demonstrates excellent resistance to swelling, abrasion, and thermal degradation.
Neoprene (CR) Compounds: Specifically engineered for cold-weather operations (Arctic drilling). Maintains elasticity and sealing force at ultra-low ambient temperatures where other rubbers become brittle.

Engineering Excellence & OEM Interchangeability

Our packing elements and rubber seals feature embedded, high-tensile steel reinforcing inserts that are chemically bonding to the elastomer during our proprietary vulcanization process. This ensures uniform feedable rubber movement during closure, resulting in a reliable seal around any string shape (drill pipe, kelly, tool joints, or wireline) and complete shut-off on open hole.
100% Interchanging Capability:
All sealing elements are precision-molding to seamlessly replace original parts in mainstream blowout preventers, including:
Annular BOP Elements:
Fully interchangeable with Cameron type, Shaffer type, and Hydril type hoisting and sealing geometries.
Ram BOP Rubbers:
Top seals and variable bore ram (VBR) rubbers designed for perfect fitment, preventing premature extrusion under high-pressure, high-temperature (HPHT) conditions.
Quality Control:
Every batch undergoes strict hardness (Durometer Shore A), tensile strength, and compression-set testing to guarantee field reliability and minimize non-productive time (NPT).

FAQ – RIGRS Rubber Sealing Packing Element

Q1: What information do you need to match Rubber Sealing Packing Element?

A: BOP type (annular/ram), bore size, working pressure, manufacturer/model, part numbers (if available), and required quantity.

Q2: Can you supply OEM-compatible parts?

A: Yes. We can supply OEM-compatible parts after confirming dimensions and compatibility.

Q3: Do you support different Rubber Sealing Packing Element compounds?

A: Yes. Compound options can be selected based on temperature range and service environment.

Q4: Can you provide a complete spare parts kit?

A: Yes. We can propose a maintenance kit based on your BOP configuration and project needs.

Q5: What is the difference between an annular packing element and a seal kit?

A: The packing element is the main reinforced sealing component of an annular BOP. A seal kit normally contains smaller hydraulic seals, O-rings, backup rings and related components.

Q6: How do I select packing-element material?

A: Selection should consider BOP model, temperature, drilling fluid, hydrocarbon exposure and H₂S service.

Q7: Can you supply a complete BOP overhaul kit?

A: Overhaul kits can be reviewed according to the exact BOP model and required maintenance scope. Send the equipment model and existing parts list where available.