1. Product Introduction
This professional lineup of oilfield drilling float valves and matching repair kits is precision engineered to fit standard drilling float valve configurations: 2F-3R (2 7/8”-3 1/2” F), 4R (4 1/2” FC/GC API Reg), and 5F-6R (5 9/16”-6 5/8” FC/GC) models, covering the most widely used sizes in onshore and offshore drilling operations. The product range includes complete non-ported flapper float valves (4801 series) and dedicated metal/rubber repair kits (1601, 1700, 7001 series), plus specialized puller assemblies for safe installation and removal. Every component is manufactured to meetAPI 53/API 6A industry standards, with strict dimensional tolerances and material performance ratings, ensuring full compatibility with existing drilling float valve housings and eliminating fitment failures.
2. Core Purpose & Target User Demands
Core Purpose: These float valves and repair kits are designed to prevent backflow of drilling fluid, control wellbore pressure, maintain circulation stability, and extend the service life of drilling float valve assemblies. They support emergency well control interventions, routine maintenance overhauls, and on-site component replacement, addressing critical pressure control needs during drilling, tripping, and casing operations.
3. Key Functional Specifications
- Pressure Control Performance: Float valves withstand working pressures up to 10,000 PSI, with non-ported flapper designs delivering 99% leak-proof sealing to prevent kickbacks and fluid backflow during drilling operations.
- Repair Kit Versatility: Metal repair kits provide durable replacement for wear-prone internal metal components (seats, retainers), while rubber repair kits offer high-resilience sealing elements to restore pressure integrity.
- Tool-Assisted Servicing: Custom puller assemblies (4809 series) enable safe, efficient removal and installation of float valves without damaging valve housings or drill string components, cutting servicing time by 60%.
- API Compliance: All products adhere to API regulatory standards, ensuring compatibility with standard drilling tool assemblies and compliance with global oilfield operational requirements.
4. Structural & Material Features
Float valves feature a rugged flapper-style structure with high-strength alloy steel seats and corrosion-resistant flappers, engineered to resist abrasion from drilling cuttings and high-velocity fluid flow. Repair kits use precision-machined metal components (for wear resistance) and oil-resistant nitrile rubber seals (for superior sealing under extreme conditions). Puller assemblies are constructed from heavy-duty carbon steel with ergonomic design for safe handling in harsh oilfield environments. All parts feature laser-etched model markings for quick size identification and inventory management.
5. Applicable Operating Conditions
These float valves and repair kits are optimized for demanding oilfield drilling, including onshore vertical drilling, offshore directional drilling, high-temperature wellbores (up to 150°C), high-pressure formations, and abrasive drilling fluid environments. They perform reliably in both freshwater- and oil-based drilling mud systems, matching the operational requirements of standard 2F-3R, 4R, and 5F-6R float valve installations.
6. Maintenance & Care Recommendations
- Pre-Use Inspection: Check float valve flappers for wear, seats for pitting, and rubber seals for cracking before installation; discard components with visible damage to avoid pressure failures.
- Routine Replacement: Replace rubber seal components every 500 drilling hours (or 3 months) and metal wear components every 1,500 hours to maintain optimal sealing performance.
- Storage Guidelines: Store repair kits and unused valves in a dry, dust-free environment; keep rubber seals sealed in original packaging to prevent premature hardening from oil or UV exposure.
- Servicing Protocol: Use designated model-matched puller assemblies for valve removal to avoid structural damage; lubricate metal components with drilling-compatible grease during reassembly.
We supply the following spare parts:
| LI | Description | Maker’s Ref. | Unit |
| 1 | Float Valve;G2 2F-3R ,non ported flapper | 480152432 | Each |
| 2 | Repair Kit;Ga 5F-6R metal repair | 17134200 | Each |
| 3 | Repair Kit: GA 4R Metal | 17116000 | Each |
| 4 | Repair Kit:Ga 2F-3R Metal | 17135000 | Each |
| 5 | Repair Kit;:G 2F-3R Metal | 16013800 | Each |
| 6 | Repair Kit; G 2F-3R Rubber | 16013200 | Each |
| 7 | Puller Assembly;G 2F-3R | 480902432 | Each |
| 8 | Puller Assembly;G 4R | 480904200 | Each |
| 9 | Puller Assembly;G 5F-6R | 480905462 | Each |
| 10 | Float Valve;2F-3R, 2 7/8”-3 1/2′,’ F | 480132432 | Each |
| 11 | Float Valve;5F-6R,5 9/16”-6 5/8” FC | 480184562 | Each |
| 12 | Float Valve;5F-6R,5 9/16-6 5/8 GC | 480195462 | Each |
| 13 | Float Valve;4R,4 1/2”,FC API Reg | 480184200 | Each |
| 14 | Float Valve;4R,4 1/2”,GC API Reg | 480194200 | Each |
| 15 | Repair Kit;4R, FC | 70017400 | Each |
| 16 | Repair Kit;4R G | 16013400 | Each |
| 17 | Repair Kit,2F-3R, F | 16011400 | Each |
| 18 | Rubber Repair Kit;4R,F | 16012700 | Each |
| 19 | Repair Kit;5F-6R G | 16013700 | Each |
| 20 | Repair Kit;5F-6R F and FC | 16013000 | Each |
| 21 | Repair Kit;5F-6R FC | 70017700 | Each |
| 22 | Repair Kit;5F-6R G | 16014300 | Each |
| 23 | Repair Kit;4R G | 16014000 | Each |
| 24 | Rubber Repair Kit;2F-3R, F | 16012400 | Each |
On-Site Fault Repair Cases (Field Drilling Scenarios)
Case 1: 2F-3R Float Valve Backflow Leak
A land drilling rig experienced severe drilling fluid backflow during tripping operations, caused by worn flapper and seat seals on a 2F-3R float valve. Replacing the valve with a new 480132432 model and installing a 16011400 metal repair kit restored full pressure sealing, eliminating backflow and resuming drilling within 1 hour.
Case 2: 4R Float Valve Stuck Removal Failure
An offshore well site encountered a stuck 4R (4 1/2” FC) float valve that could not be removed manually. Using the 480904200 puller assembly, the team safely extracted the damaged valve and installed a replacement 480184200 float valve, paired with a 70017400 FC repair kit, avoiding costly drill string damage.
Case 3: 5F-6R Float Valve Pressure Seal Failure
A directional drilling project reported pressure loss due to degraded rubber seals on a 5F-6R float valve. Installing the 16013000 metal/rubber repair kit replaced worn sealing components, restoring 10,000 PSI pressure integrity and preventing potential well control issues.
Frequently Asked Questions (FAQ)
| Question | Answer |
| Are these float valves and repair kits API certified? | Yes, all float valves and repair components meet API 53 and API 6A industry standards, fully compatible with standard API-spec drilling float valve housings and drill string assemblies. |
| How do I match the correct repair kit to my float valve? | Select repair kits based on your valve size (2F-3R/4R/5F-6R) and type (F/FC/GC): e.g., 2F-3R F models use 16011400 metal kits, 4R FC models use 70017400 kits, and 5F-6R FC uses 16013000 kits. |
| Can I use a universal puller for these float valves? | We recommend using model-matched 4809 series pullers (480902432 for 2F-3R, 480904200 for 4R, 480905462 for 5F-6R) to ensure safe, damage-free removal and avoid fitment issues with universal tools. |
Closing Section: Procurement Guidance & Technical Reference
Procurement Call to Action
This complete range of drilling float valves, model-specific repair kits, and specialized puller assemblies is your all-in-one solution for well pressure control, emergency repairs, and routine maintenance of 2F-3R, 4R, and 5F-6R float valve systems. Each product is manufactured to strict oilfield standards, with clear part number labeling (4801 float valves, 1601/1700/7001 repair kits, 4809 pullers) to serve as your official procurement and technical reference for accurate part selection.
Whether you need complete float valves for urgent well control, metal/rubber repair kits for on-site overhauls, or puller tools for safe servicing, this product lineup delivers reliable performance and API-compliant quality for all drilling operations. Use the detailed size and model specifications to verify compatibility with your existing equipment, and reach out for technical support to streamline your ordering process. Invest in these precision-matched components to minimize wellsite downtime, enhance operational safety, and maintain consistent pressure control for your drilling projects.
