FKQ8007 YPQ-250B Anti-seismic Pressure Transmitter & Complete Oilfield BOP/Pump Parts Series

Introduction

In oilfield drilling and production operations, especially in harsh environments like offshore drilling rigs and onshore oilfields, the stability and reliability of equipment directly determine operational safety, efficiency, and economic benefits. The parts listed, including the FKQ8007 YPQ-250B anti-seismic pressure transmitter, 2FZ23-21 BOP ram, and FKQ8007 QYB40-60L three-cylinder pneumatic hydraulic pump, are core components designed for key oilfield equipment such as blowout preventers (BOP), high-pressure pumps, and pressure control systems. These parts are fully compatible with mainstream oilfield equipment models, including Honghua ZJ series drilling rigs, FZ series BOPs, F series mud pumps, Weatherford and Jereh drilling equipment, as well as Caterpillar and Detroit Diesel supporting systems. Our product line is tailored to meet the细分 needs of oilfield operation teams, maintenance engineers, and procurement departments—solving pain points such as frequent part failures under high pressure, poor compatibility with original equipment, short service life in harsh environments, and difficulty in emergency maintenance. The core purpose of these parts is to ensure the safe and stable operation of oilfield drilling, well control, and fluid transmission systems, reduce downtime caused by part damage, and lower long-term maintenance costs for oilfield enterprises.

Product Overview

We supply a full range of high-quality oilfield equipment parts, covering pressure measurement and control, BOP components, pump parts, sealing elements, and fasteners. The product line includes key models such as the FKQ8007 YPQ-250B anti-seismic pressure transmitter, FKQ6407 YPQ-40A pressure transmitter, 2FZ23-21 2-7/8″ BOP ram, FZ35-70 BOP gate assembly, and FKQ8007 QYB40-60L three-cylinder pneumatic hydraulic pump. All parts are manufactured in strict accordance with API 16A (for BOP parts), API 674 (for pump parts), and GB/T 20425-2006 standards, with each unit undergoing 100% pressure testing and seismic performance verification before leaving the factory. Our parts feature direct drop-in replacement compatibility with original equipment, eliminating the need for modifications to the equipment body, which greatly shortens maintenance time and reduces operational risks. Backed by 15 years of experience in oilfield parts research and development and production, our products have been adopted by more than 30 major oilfield enterprises worldwide, with a cumulative service life of over 800,000 hours in harsh oilfield environments, and a failure rate of only 0.3 per 1,000 units—far lower than the industry average of 1.2 per 1,000 units.

Key Product Functions

Each part is designed to address specific pain points in oilfield operations, with core functions focused on safety, stability, and efficiency:

• Anti-seismic Pressure Transmitters (FKQ8007 YPQ-250B, FKQ6407 YPQ-40A): Withstand seismic intensity up to 8 degrees and work stably under high pressure (up to 40MPa for YPQ-40A, 25MPa for YPQ-250B), providing accurate pressure data with an error margin of only ±0.05MPa—solving the problem of inaccurate pressure measurement caused by drilling vibration and ensuring timely adjustment of well control parameters.

• BOP Components (2FZ23-21 Ram, FZ35-70 Gate Assembly, FH23-21 Rubber Core): Made of high-strength alloy steel and wear-resistant rubber, they can withstand pressure up to 70MPa (for FZ35-70) and effectively seal wellbore pressure during well kicks or blowouts, preventing well control accidents. The 2FZ23-21 ram’s 2-7/8″ size is perfectly matched to small-diameter wellbores, solving the problem of poor sealing caused by mismatched ram sizes.

• Three-Cylinder Pumps (FKQ8007 QYB40-60L, FKQ3204 QB21-50): Deliver stable output flow (40L/min for QYB40-60L) and high working pressure (60MPa), with a built-in adjustable pressure relief valve to prevent pump body damage due to overpressure—solving the problem of pump failure caused by unstable pressure in high-load drilling operations.

• Sealing Elements (FZ35-70 Side Door Sealing Ring, 3GB.00C V-clamp Seal): Adopt high-temperature and high-pressure resistant materials, with a service life of up to 18 months under continuous operation at 120℃ and 31.5MPa—solving the problem of frequent seal replacement caused by harsh oilfield conditions.

Structural Features

Our parts are designed with practicality and durability in mind, with structural features that address industry pain points:

• Pressure Transmitters: Integrated stainless steel housing with IP68 protection rating, preventing dust and water intrusion in humid and dusty oilfield environments; the anti-seismic structure uses a damping spring and shock-absorbing pad, reducing the impact of drilling vibration on measurement accuracy—ensuring stable operation even in continuous vibration environments (frequency 5-50Hz).

• BOP Rams and Seals: The 2FZ23-21 ram adopts a split-type structure for easy installation and replacement, without disassembling the entire BOP; the FZ35-70 side door sealing ring uses a multi-layer composite structure, enhancing sealing performance and reducing the risk of pressure leakage. The FH23-21 spherical rubber core has a flexible design, adapting to slight deviations in wellbore size and improving sealing reliability.

• Three-Cylinder Pumps: The FKQ8007 QYB40-60L uses a three-cylinder plunger structure, reducing output pressure fluctuations (fluctuation range ≤±0.5MPa) and improving the stability of fluid transmission; the pump body is made of forged alloy steel, with a thickness of 25mm, enhancing impact resistance and extending service life to 10,000 working hours.

• Fasteners (M36*3*215 Stud Bolt): High-strength carbon steel material with heat treatment, tensile strength up to 12.9 grade, ensuring firm connection under high pressure and preventing bolt loosening caused by equipment vibration—avoiding potential safety hazards.

Applicable Working Conditions

Our parts are specially designed for harsh oilfield working conditions, including but not limited to:

• Offshore Oilfield Drilling Rigs: Adapt to high humidity (relative humidity 85%-100%), salt spray corrosion, and seismic environments, suitable for Honghua ZJ30-ZJ70 drilling rigs and FZ series BOPs (FZ35-70, FZ54-14).

• Onshore High-Pressure Oilfields: Withstand high temperature (ambient temperature -40℃ to 120℃) and high pressure (up to 70MPa), suitable for Jereh and Weatherford well control systems, as well as F series mud pumps.

• Well Control and Blowout Prevention Scenarios: Used in 2FZ23-21, 2FZ35-70, and 2FZ53-21 BOPs, ensuring effective sealing and pressure control during well kicks, blowouts, and well completion operations.

• High-Pressure Fluid Transmission Systems: Suitable for FKQ8007, FKQ6406, and FKQ3204 three-cylinder pumps, used in mud circulation, cementing, and fracturing operations in oilfields.

Maintenance and Care Recommendations

To extend the service life of the parts and ensure stable operation, our senior oilfield maintenance engineers provide the following practical operation suggestions (avoiding common maintenance mistakes):

• Pressure Transmitters: Clean the pressure interface every 3 months to remove sludge and impurities—avoid using high-pressure water flushing directly on the sensor, as this may damage the internal circuit. Calibrate the transmitter every 6 months using a standard pressure gauge (such as Fluke700 series) to ensure measurement accuracy; if the output signal is unstable, check the wiring terminal for loose connections first, not the sensor itself.

• BOP Components: Inspect the ram rubber core and sealing rings every 2 months for wear or cracks; replace them immediately if the wear depth exceeds 2mm. Apply FKQ6407 7903 high-pressure sealing grease to the ram surface and side door sealing ring before installation—avoid using ordinary grease, which will decompose under high pressure and cause sealing failure.

• Three-Cylinder Pumps: Check the oil level every 15 working days and add special hydraulic oil (model 46# anti-wear hydraulic oil) if necessary. Clean the inlet and discharge valve core (3GB.00.05 9160100005) every month to prevent blockage; if the pump output pressure drops, check the plunger seal first, not the pump body.

• Fasteners and Seals: Tighten the M36*3*215 stud bolts every month with a torque wrench (torque 800N·m) to prevent loosening. Replace the V-shaped clip fabric rubber sealing ring (9160599100) every 12 months, even if there is no obvious wear—this avoids sudden seal failure during high-pressure operation.

We supply the following spare parts:

Field Fault Maintenance Cases

The following are 4 real on-site maintenance cases from domestic and foreign oilfields, showing the practical effect of our parts in solving actual problems:

1. Case 1: Bohai Bay Offshore Oilfield (China) – Equipment Model: 2FZ35-70 BOP; Fault: Ram rubber core leakage during well control operation, pressure drop from 50MPa to 35MPa in 10 minutes; Load: 50MPa wellbore pressure; Solution: Replace with our 2FZ35-70 6 5/8″ ram rubber core; Repair Effect: Sealing pressure remains stable at 50MPa for 72 hours, no leakage; Customer Feedback: “The replacement part fits perfectly, and the sealing performance is better than the original, avoiding a potential blowout accident and reducing downtime by 8 hours.”

2. Case 2: Permian Basin Oilfield (USA) – Equipment Model: FKQ8007 QYB40-60L three-cylinder pump; Fault: Pump output pressure unstable, fluctuation range ±2MPa, unable to meet fracturing requirements; Load: 60MPa working pressure, 40L/min flow; Solution: Replace the inlet and discharge valve core (3GB.00.05 9160100005) and add FKQ6407 7903 high-pressure sealing grease; Repair Effect: Pressure fluctuation range reduced to ±0.3MPa, meeting fracturing operation standards; Customer Feedback: “The parts solved the pressure instability problem that plagued us for a month, and the pump operation is now very stable, improving fracturing efficiency by 15%.”

3. Case 3: Daqing Onshore Oilfield (China) – Equipment Model: FKQ8007 YPQ-250B pressure transmitter; Fault: Inaccurate pressure measurement due to drilling vibration, error up to ±0.2MPa, affecting well control parameter adjustment; Load: 25MPa working pressure, continuous vibration (frequency 20Hz); Solution: Replace with our FKQ8007 YPQ-250B anti-seismic pressure transmitter; Repair Effect: Measurement error reduced to ±0.04MPa, stable operation under vibration; Customer Feedback: “The anti-seismic performance is excellent, and the pressure data is accurate, which helps us adjust well control parameters in a timely manner and ensures drilling safety.”

4. Case 4: Middle East Oilfield (Saudi Arabia) – Equipment Model: FZ35-70 BOP; Fault: Side door sealing ring leakage, unable to maintain wellbore pressure; Load: 60MPa wellbore pressure, high temperature (85℃); Solution: Replace with our FZ35-70 side door sealing ring assembly (11148.41.00); Repair Effect: Sealing is tight, pressure remains stable at 60MPa for 96 hours, adapting to high-temperature environment; Customer Feedback: “The sealing ring can withstand high temperature and high pressure, and the service life is longer than the original part, reducing maintenance frequency and costs.”

FAQ (Frequently Asked Questions)

Procurement Guide

We provide a full range of high-quality oilfield equipment parts, including the FKQ8007 YPQ-250B anti-seismic pressure transmitter, BOP components, three-cylinder pump parts, and sealing elements, all of which meet international standards and have passed CE, RoHS, and TUV certifications. Our parts feature drop-in replacement compatibility, long service life, and reliable performance, effectively solving the pain points of frequent failures, poor compatibility, and high maintenance costs in oilfield operations. Whether you need batch procurement for daily maintenance or emergency replacement parts for urgent operations, we can provide high-quality products and professional technical support. To ensure you get the correct parts, please provide the equipment model, part model, or specific specifications when contacting us. Our technical team will help you confirm the matching parts and provide a detailed quotation and product parameter manual. We are committed to providing you with cost-effective oilfield parts and intimate after-sales service, helping you improve operational efficiency and reduce maintenance costs.

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