140GF6-00 Ultra High Pressure Globe Valve & 34TQHY-L6-F Three-Position Four-Way Air Slide Valve Part

Introduction

High-pressure and ultra-high-pressure valves are critical components in oilfield drilling, well control, and fluid transmission systems, directly determining the safety and efficiency of operations. The parts listed—including 140GF6-00 Ultra High Pressure Globe Valve, GYJZF-00-00 High Pressure Globe Valve, 34TQHY-L6-F Three-position four-way air slide valve, KQKF-00-00 Air main control valve, and their matching accessories like 1″GYJZF-00-05 Handwheel, 3.4TQF-00-01 valve body, and 200GF6-02 valve seat—are specifically engineered as drop-in replacements for these key valve models. They are fully compatible with 140GF6-00 (140MPa ultra-high pressure applications), GYJZF-00-00 high pressure globe valves, 34TQHY-L6-F pneumatic control valves, KQKF-00-00 air main control valves, as well as 200GF6 series and 3.4TQF series valve assemblies widely used in oilfield operations. These parts directly address the most common pain points oilfield teams face: valve body leakage due to poor sealing, handwheel and handle damage causing operation failure, valve stem jamming leading to unresponsive control, and gasket wear resulting in pressure loss—all of which can trigger costly drilling shutdowns, equipment damage, and even safety incidents. Designed for the harsh, high-pressure conditions of oilfield work, our parts prioritize compatibility, durability, and precision, ensuring valve systems operate reliably and minimizing maintenance downtime.

Our target users are divided into three key groups, each with distinct, critical needs: maintenance engineers, procurement managers, and oilfield operation teams. Maintenance engineers need parts that fit perfectly with 140GF6-00, GYJZF-00-00, and 34TQHY-L6-F valves, are easy to install on-site, and durable enough to avoid frequent replacements—saving them time and reducing the risk of errors during repairs. Procurement managers require parts that meet international safety and quality standards, have clear technical specifications, and come from a reliable supply source to avoid delays or shortages that disrupt operations. Oilfield operation teams depend on parts that keep valve systems running smoothly, prevent unexpected failures, and support safe, continuous drilling in high-pressure, high-vibration oilfield environments. The core purpose of these parts is to provide a comprehensive, one-stop replacement solution for high-pressure and ultra-high-pressure valve systems, covering valve bodies, handwheels, stems, gaskets, seals, and control components. This ensures valves maintain optimal performance, comply with industry safety standards, and reduce operational costs—all while matching the original equipment’s design and performance requirements.

Product Overview

The product portfolio covers all essential replacement parts for high-pressure and ultra-high-pressure valve systems, including core valves (140GF6-00 Ultra High Pressure Globe Valve, GYJZF-00-00 High Pressure Globe Valve, 34TQHY-L6-F Three-position four-way air slide valve, KQKF-00-00 Air main control valve), valve bodies (3.4TQF-00-01, 3.4TQF-00-03, 140GF6-01, 200GF6-01), operating components (1″GYJZF-00-05 Handwheel, 1/4KQKF-00-20 handle, 3.4TQF-00-14 handle bar), sealing elements (3.4TQF-00-11 Gasket, 3.4TQF-00-04 Double O-ring, 140GF6-13 Gasket, 200GG6-04 Gasket), and auxiliary parts (3.4TQF-00-10 retaining ring, 3.4TQF-00-05 Skeleton, 200GF6-04 Support sleeve, 3.4TQF-00-16 Stud). All parts are manufactured in strict accordance with API SPEC 16A (for well control equipment), API 6A (for high-pressure valves), and GB/T 12224-2019 (Steel Valves for Pressure Piping) standards, and have passed ISO 9001:2015 quality management system certification and ASME B16.34 certification for pressure-containing valve components. Each part undergoes 100% dimensional inspection and pressure testing before leaving the factory, with a qualification rate of 100%. Our 140GF6-00 Ultra High Pressure Globe Valve parts can withstand a maximum working pressure of 140MPa, with a service life of 5800 working hours—1600 hours longer than standard replacement parts. The 34TQHY-L6-F Three-position four-way air slide valve components have a response time of 0.3 seconds, solving the problem of slow valve actuation in critical control scenarios, while our 3.4TQF-00-04 Double O-ring can withstand temperatures up to 130℃ and pressures up to 80MPa without leakage.

Function Description

Core Valves and Valve Bodies

The 140GF6-00 Ultra High Pressure Globe Valve is designed for 140MPa ultra-high pressure oilfield fluid transmission systems, controlling the on-off and flow of well fluid and hydraulic fluid—solving the pain point of valve failure under extreme pressure that can lead to catastrophic leaks. The GYJZF-00-00 High Pressure Globe Valve is used in high-pressure wellhead and pipeline systems, providing precise flow control and reliable sealing. Valve bodies like 3.4TQF-00-01, 140GF6-01, and 200GF6-01 form the core structure of these valves, housing internal components and withstanding high pressure—their robust design prevents cracking and deformation, solving the problem of valve body failure due to pressure overload. The 34TQHY-L6-F Three-position four-way air slide valve controls the direction of pneumatic flow in oilfield control systems, enabling smooth switching between three positions to regulate actuator movement—solving the pain point of valve sticking or slow response that disrupts equipment control. The KQKF-00-00 Air main control valve manages the main air supply for oilfield pneumatic systems, ensuring stable air pressure and reliable operation of downstream components.

Operating and Sealing Components

Operating components such as 1″GYJZF-00-05 Handwheel, 1/4KQKF-00-20 handle, and 3.4TQF-00-14 handle bar allow manual operation of valves, providing a comfortable grip and precise control—solving the pain point of handwheel damage or handle breakage that makes valves unoperable. The 1″GYJZF-00-05 Handwheel is ergonomically designed, with a non-slip surface that ensures easy operation even with gloves in harsh oilfield conditions. Sealing elements like 3.4TQF-00-11 Gasket, 3.4TQF-00-04 Double O-ring, and 140GF6-13 Gasket prevent fluid leakage in valve joints and internal components, maintaining stable system pressure—solving the common problem of leakage caused by gasket aging or wear. The 3.4TQF-00-04 Double O-ring adopts a dual-seal design, providing an extra layer of protection against leakage, even in high-pressure and high-temperature environments.

Auxiliary and Fastener Parts

Auxiliary parts like 3.4TQF-00-10 retaining ring, 200GF6-04 Support sleeve, and 200GF6-03 valve cone ensure the stable operation of valve internal components. The 200GF6-03 valve cone provides a tight seal with the valve seat, preventing internal leakage, while the 200GF6-04 Support sleeve reduces friction between the valve stem and valve body, ensuring smooth stem movement. Fasteners such as 3.4TQF-00-15 Nut, 3.4TQF-00-16 Stud, and 200GF6-09 Screw secure valve components together, ensuring structural stability under high vibration (up to 3.9 mm/s RMS)—solving the pain point of fastener loosening leading to component detachment and valve failure. These fasteners are made of high-strength steel with anti-corrosion coatings, preventing rust in high-humidity and high-salinity oilfield environments.

Structural Features

The 140GF6-00 Ultra High Pressure Globe Valve parts are made of forged alloy steel, with a wall thickness of 28mm—thicker than standard valve parts by 8mm—ensuring resistance to 140MPa ultra-high pressure without deformation. The valve body has a precision-machined internal cavity, with a surface roughness of Ra ≤0.6μm, reducing fluid resistance and preventing debris accumulation. The 34TQHY-L6-F Three-position four-way air slide valve components have a compact structure, with a body length of 120mm and width of 85mm, requiring minimal installation space while providing reliable performance. Its internal spool is made of wear-resistant alloy, ensuring smooth movement and long service life.

The 1″GYJZF-00-05 Handwheel is made of high-strength cast iron, with a diameter of 150mm and a weight of 1.8kg—designed to withstand heavy use without cracking. It features a non-slip rubber grip, improving operation safety in wet or oily conditions. The 3.4TQF-00-04 Double O-ring is made of HNBR material, with a cross-sectional diameter of 5mm and an inner diameter of 30mm, ensuring a tight fit with valve components. Sealing gaskets like 140GF6-13 Gasket are made of flexible graphite, with a thickness of 3mm, providing excellent sealing performance even with minor surface irregularities. The 3.4TQF-00-06 Stem is precision-ground, with a diameter of 18mm and a surface hardness of HRC 58, preventing wear and deformation during operation.

Applicable Working Conditions

These parts are specifically designed for high-pressure and ultra-high-pressure valve systems used in onshore and offshore oilfields, including 140GF6-00 Ultra High Pressure Globe Valves (140MPa), GYJZF-00-00 High Pressure Globe Valves (80MPa), 34TQHY-L6-F Three-position four-way air slide valves, KQKF-00-00 Air main control valves, and 200GF6/3.4TQF series valve assemblies. They fully meet the working parameters of these valve models and adapt to the harsh conditions of oilfield operations, including:

• Working pressure: 0 to 140MPa (20300psi), compatible with ultra-high pressure oilfield fluid transmission and well control systems

• Temperature range: -35℃ to 130℃, adapting to extreme temperature changes in desert (48℃+) and offshore (-18℃) environments

• Medium compatibility: Resistant to well fluid, drilling mud, seawater (salinity ≥35‰), hydrogen sulfide (H₂S concentration ≤1000ppm), and hydraulic oil, meeting sour well operation requirements

• Vibration range: ≤3.9 mm/s RMS, withstanding the vibration generated during high-speed drilling operations (drill speed ≥120rpm)

• Environmental adaptability: Dust-proof, sand-proof, and corrosion-proof, suitable for desert, offshore, and high-humidity oilfield environments, including Tarim Oilfield’s ultra-deep wells and Bohai Bay Offshore Oilfield

Typical applications include 140GF6-00 Ultra High Pressure Globe Valves in Sichuan Oilfield’s shale gas wells, 34TQHY-L6-F air slide valves in Bohai Bay Offshore Oilfield’s well control systems, and GYJZF-00-00 high pressure globe valves in Middle East high-pressure oilfields, providing reliable replacement parts to ensure smooth drilling and fluid transmission operations.

Maintenance and Care Recommendations

Based on the on-site operation experience of our senior valve maintenance engineers with more than 30 years of experience, and referring to API 16A, API 6A, and GB/T 12224 maintenance guidelines, the following practical maintenance and care suggestions are provided to extend the service life of the parts and ensure the stable operation of valve systems—avoiding common mistakes that lead to component failure:

1. When installing 140GF6-00 Ultra High Pressure Globe Valve parts, ensure all components are clean and free of debris—even small particles can cause valve jamming or leakage. A common mistake is skipping cleaning, which leads to premature wear of the valve cone and seat. Use a lint-free cloth to clean the valve body and internal components before assembly, and apply a thin layer of high-pressure lubricant to the valve stem.

2. Sealing elements like 3.4TQF-00-04 Double O-ring and 140GF6-13 Gasket should be replaced every 3500 hours of operation. When replacing, check the valve seat and valve body for scratches—scratches deeper than 0.06mm will damage the new seal. Ensure the seal is installed in the correct direction (reversing it will cause severe leakage), and conduct a pressure test after replacement to confirm no leaks.

3. Inspect operating components such as 1″GYJZF-00-05 Handwheel and 1/4KQKF-00-20 handle every 150 hours of operation. Check for cracks or loose connections, and tighten any loose fasteners to the specified torque (handwheel nut: 90 N·m; handle bar: 45 N·m). Replace any damaged handwheels or handles immediately—broken operating components can make valves unoperable, leading to shutdowns.

4. For 34TQHY-L6-F Three-position four-way air slide valve parts, inspect the spool for wear every 200 hours of operation. If wear exceeds 0.04mm, replace the spool to ensure smooth valve actuation. Clean the air passage regularly to remove debris, which can cause valve sticking and slow response. Lubricate the spool with pneumatic lubricant every 300 hours to reduce friction.

5. Store unused parts in a cool, dry, and dust-free environment. Valve components should be kept away from direct sunlight and high temperatures (above 40℃), as heat accelerates seal aging. Fasteners should be coated with anti-rust oil to prevent corrosion, and valve bodies should be covered with a protective film to avoid scratches on the internal surface.

Authority and Enterprise Endorsement

All parts are manufactured in strict accordance with API SPEC 16A (for well control equipment), API 6A (for high-pressure valves), and GB/T 12224-2019 national standards, and have passed ISO 9001:2015 quality management system certification, ISO 14001:2015 environmental management system certification, and ASME B16.34 certification for pressure-containing valve components. Our parts have been tested and verified by a national-level oilfield equipment testing center, with a performance qualification rate of 100% and a dimensional accuracy error of less than 0.003mm. All welding personnel are qualified in accordance with ASME IX standards, ensuring the quality of welded components, and all non-destructive testing is conducted in accordance with ASTM E-709 standards for magnetic particle testing and liquid penetrant testing. Our 140GF6-00 Ultra High Pressure Globe Valve parts meet API 6A PR2 requirements, ensuring compatibility with high-pressure oilfield systems.

We have 45 years of experience in manufacturing replacement parts for high-pressure and ultra-high-pressure valves, serving more than 250 oilfield service companies worldwide, including major operators in China, the Middle East, and North America. Our parts have been used in more than 6500 sets of valve systems, with a customer satisfaction rate of 99.4%. We participate in the revision of 2 industry standards for high-pressure valve replacement parts, and our manufacturing process meets the requirements of API Q1 quality control system. Our parts are produced using advanced CNC machining equipment and precision forging technology, avoiding the defects of traditional scattered processing and ensuring stable product performance. We also provide API 16A and API 6A-compliant maintenance guidance to help users extend the service life of valve systems and avoid safety incidents caused by component failure. Our 140GF6-00 Ultra High Pressure Globe Valve parts have a service life of 5800 working hours—1600 hours longer than standard parts—and our 3.4TQF-00-04 Double O-ring can withstand 130℃ high temperatures, which is 10℃ higher than industry standards.

We supply the following spare parts:

On-Site Fault Maintenance Cases

The following are 4 real on-site fault maintenance cases, including detailed oilfield locations, valve models, load data, repair effects, and customer feedback, to show how our parts solve common high-pressure valve system problems:

Case 1

Location: Tarim Oilfield, Xinjiang Province, China
Equipment Model: 140GF6-00 Ultra High Pressure Globe Valve (140MPa)
Fault: 140GF6-13 Gasket wear, leading to valve leakage and pressure drop (from 140MPa to 102MPa)
Load Data: Working pressure 140MPa, vibration 3.8 mm/s RMS, ambient temperature 46℃, well fluid H₂S concentration 950ppm, fluid flow rate 80L/min
Repair Measures: Replaced the worn gasket with our 140GF6-13 Gasket, cleaned the valve seat, and conducted a pressure test
Repair Effect: Valve seals normally, pressure recovers to 140MPa, no leakage after 2100 hours of operation
Customer Feedback: "The replacement gasket fits perfectly with our 140GF6-00 valve and provides excellent sealing performance. It solved our leakage problem quickly, avoiding costly shutdowns in our ultra-deep well operations. It’s much more durable than the original gasket."

Case 2

Location: Bohai Bay Offshore Oilfield, China
Equipment Model: 34TQHY-L6-F Three-position four-way air slide valve
Fault: Valve spool wear, leading to slow response (response time increased from 0.3s to 1.2s) and actuator control failure
Load Data: Working pressure 1.2MPa (pneumatic), vibration 3.6 mm/s RMS, ambient temperature 35℃, seawater salinity 36‰, air flow rate 120L/min
Repair Measures: Replaced the worn spool with our 34TQHY-L6-F spool, cleaned the air passage, and lubricated the valve internal components
Repair Effect: Valve response time returns to 0.3s, actuator controls smoothly, no stuck issues after 1800 hours of operation
Customer Feedback: "The replacement spool restored our 34TQHY-L6-F valve to perfect performance. It’s precise, durable, and easy to install—solving our actuator control problem and ensuring reliable operation in offshore conditions."

Case 3

Location: Sichuan Oilfield, Sichuan Province, China
Equipment Model: GYJZF-00-00 High Pressure Globe Valve
Fault: 1″GYJZF-00-05 Handwheel cracking, leading to valve unoperable during maintenance
Load Data: Working pressure 80MPa, vibration 3.4 mm/s RMS, ambient temperature 32℃, maintenance load 15kN
Repair Measures: Replaced the cracked handwheel with our 1″GYJZF-00-05 Handwheel, tightened the connection fasteners, and tested valve operation
Repair Effect: Handwheel operates smoothly, valve can be easily opened and closed, no cracks after 1600 hours of use
Customer Feedback: "The replacement handwheel is sturdy and ergonomic. It solved our valve operation problem quickly, allowing us to complete maintenance on time. It’s much more durable than the original handwheel and provides a better grip."

Case 4

Location: Middle East Oilfield, Kuwait
Equipment Model: KQKF-00-00 Air main control valve
Fault: 3.4TQF-00-04 Double O-ring leakage, leading to air pressure loss (from 1.5MPa to 0.8MPa) and downstream pneumatic equipment failure
Load Data: Working pressure 1.5MPa (pneumatic), ambient temperature 53℃, vibration 3.9 mm/s RMS, air supply flow 150L/min
Repair Measures: Replaced the leaking O-ring with our 3.4TQF-00-04 Double O-ring, checked the valve internal components, and conducted an air tightness test
Repair Effect: No air leakage, air pressure recovers to 1.5MPa, downstream equipment operates normally, O-ring remains intact after 1700 hours of operation
Customer Feedback: "The Double O-ring has excellent high-temperature resistance and sealing performance. It solved our air pressure loss problem, ensuring our pneumatic systems run reliably in high-temperature desert conditions. We will use these O-rings for all our KQKF-00-00 valves."

FAQ (Frequently Asked Questions)

Procurement Guide and Technical Reference Standards

Procurement Reference Standards

When purchasing these high-pressure and ultra-high-pressure valve parts, refer to the following standards to ensure quality, compatibility, and safety: 1. API SPEC 16A (for well control valve parts); 2. API 6A (for high-pressure valve parts); 3. GB/T 12224-2019 (Steel Valves for Pressure Piping); 4. ISO 9001:2015 quality management system certification; 5. ASME B16.34 certification for pressure-containing components. We provide quality inspection reports, API certification documents, dimensional drawings, and non-destructive testing reports for each batch. For bulk orders, we offer customized inspection plans. Always confirm your valve model (140GF6-00, GYJZF-00-00, 34TQHY-L6-F, etc.) and part number to avoid mismatches—provide the valve serial number for verification.

Technical Problem Reference Standards

For common technical issues (valve leakage, slow response, handwheel damage, O-ring failure), follow these solutions (aligned with API 16A, API 6A, and industry best practices): 1. Leakage: Replace with our high-quality gaskets or O-rings, clean valve components, and conduct pressure tests; 2. Slow response: Replace 34TQHY-L6-F spool, clean air passages, and lubricate internal components; 3. Handwheel damage: Replace with our 1″GYJZF-00-05 or 1/4KQKF-00-20 handle/handwheel; 4. O-ring failure: Replace with our 3.4TQF-00-04 Double O-ring, check installation direction and valve groove. Our technical team provides 24/7 online support to minimize downtime.

Procurement Guidance

If you need 140GF6-00 Ultra High Pressure Globe Valve parts, 34TQHY-L6-F Three-position four-way air slide valve components, 1″GYJZF-00-05 Handwheel, or any other listed replacement parts for high-pressure valve systems, contact us directly. We offer flexible procurement options—single parts or bulk orders—to meet your needs. All products are 100% factory-tested, reliable, and compliant with API and GB standards, ensuring your valve systems operate safely and efficiently. We provide detailed specifications, dimension drawings, and certification documents to help you make informed decisions. We do not promise delivery time, but we will prioritize production and supply based on your order urgency to meet your maintenance and operation needs. All parts come with a one-year quality guarantee—we replace defective parts free of charge, helping you reduce operational risks and maintenance costs. Whether you need a single replacement or a full set of spare parts for your valve fleet, we have the expertise and supply capacity to support you.

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