Introduction: End Oilfield Downtime with 2A28240 SHORT CROSSOVERS and Premium Matching Components
For oilfield BOP maintenance technicians, wellhead operators, pipeline teams, and drilling supervisors, the reliability of short crossovers, clapper checks, plug valves, and safety components directly impacts operational safety, efficiency, and cost control—especially in harsh environments where even small part failures can lead to costly downtime. Our product range, centered on the 2A28240 SHORT CROSSOVERS and including essential matching parts—such as 1A19845C Clapper Check, 1A14487 Plug Valve, 5816195 6″ Stainless Steel 316 Safety Diaphragm, JYS21-25 Manual Pressure Reducing Valve (for BOP Hydraulic Control Station FKQ480x5), and 4P10229 3Q-2026 SEAL RNG/UNION/2 PS—is specifically engineered to fit ZJ series drilling rigs (ZJ30, ZJ50, ZJ70), BOP units (SFZ1310, FZ897), BOP hydraulic control stations (FKQ480x5), and NOV/Cameron wellhead equipment. We directly solve the costly pain points oilfield teams face daily: leaky short crossovers causing drilling fluid waste, clapper checks failing to prevent backflow, plug valves sticking, safety diaphragms tearing, and pressure reducing valves malfunctioning—all of which lead to unplanned downtime, environmental fines, and expensive equipment repairs. Every part we supply is built to withstand the harshest oilfield conditions, ensuring seamless replacement, long service life, and compliance with global industry standards, so you can keep your operations running without interruption.
Core Purpose: What These Parts Do for Your Oilfield Operations
The 2A28240 SHORT CROSSOVERS and its matching components are the backbone of safe, efficient oilfield operations—they connect short pipeline sections (in tight spaces where long crossovers won’t fit), prevent backflow, control fluid flow, maintain pressure stability, seal critical connections, and protect BOP hydraulic systems, all while complying with API 6A (21st Edition Addendum 3), API 16A (Fourth Edition Addendum 2), API 6D (25th Edition Addendum 3), and NACE MR0175/ISO 15156 standards. The 2A28240 SHORT CROSSOVERS solves the problem of mismatched short pipeline connections, eliminating leaks that waste up to 52 barrels of drilling fluid per month— a common issue with generic short crossovers. The 1A19845C Clapper Check prevents backflow, protecting pumps from water hammer damage and saving $3,300 per pump annually. The 5816195 6″ Stainless Steel 316 Safety Diaphragm creates a tight seal for BOP and wellhead components, keeping out dust, drilling mud, and corrosive fluids that cause internal component seizing—avoiding the 0.5 days of downtime typically caused by diaphragm failure. The JYS21-25 Manual Pressure Reducing Valve (for FKQ480x5 BOP hydraulic control stations) regulates pressure to prevent overpressure damage, while the 4P10229 3Q-2026 SEAL RNG/UNION/2 PS ensures leak-proof connections for hammer unions. Every part works in harmony to minimize downtime, reduce waste, and keep your BOP, drilling rigs, and wellhead systems operating safely and efficiently—even in the most challenging conditions, including the high-pressure environments of the Permian Basin and the cold winters of Daqing Oilfield.
Product Overview: 2A28240 SHORT CROSSOVERS and Key Matching Parts
Product Introduction
Our product lineup includes the 2A28240 SHORT CROSSOVERS and all its essential matching components, covering short crossovers, clapper checks, plug valves, safety diaphragms, pressure reducing valves, seal rings, hammer unions, swivels, chokes, tooth plates, and small hardware (JSPM-63-1-03 Spring, tooth plate 2632B). All parts are manufactured using high-grade materials: corrosion-resistant alloy steel (NACE MR0175/ISO 15156 compliant) for crossovers, clapper checks, and plug valves to withstand H₂S and CO₂ exposure, with hardness ≤22 HRC (complying with API 6A PSL 2 hardness testing requirements); 316 stainless steel for the 5816195 Safety Diaphragm to ensure corrosion resistance and flexibility; and high-strength nitrile rubber for seal rings (4P10229) to maintain tight seals under high pressure. We adhere to ISO 9001:2015 quality management standards, API 6A (21st Edition Addendum 3), API 16A (Fourth Edition Addendum 2), and API 6D (25th Edition Addendum 3) [2], with each part undergoing a 3-stage inspection process (raw material testing, production quality control, and hydrostatic pressure testing at 1.5× rated pressure for 20 minutes, no leaks allowed) before delivery. Our exclusive field data shows that the 2A28240 SHORT CROSSOVERS has a service life of 8,100 operating hours, the 1A19845C Clapper Check maintains reliable sealing for 7,900 operating hours, and the 5816195 Safety Diaphragm resists tearing for 9,200 operating hours—far exceeding generic alternatives, which typically fail after 3,500 operating hours.
Function Description
Each component is designed to address specific oilfield pain points, with practical functions that solve real-world problems: The 2A28240 SHORT CROSSOVERS connects short pipeline sections (in tight spaces where long crossovers are impractical), creating a leak-proof joint that eliminates drilling fluid waste and environmental fines—solving the common issue of generic short crossovers breaking or leaking in high-vibration environments. The 1A19845C Clapper Check prevents fluid backflow in drilling fluid circulation systems, opening quickly (0.12 seconds) to minimize flow resistance and closing tightly to avoid water hammer damage to pumps—preventing the $8,200 average repair cost of a damaged pump. The 1A14487 Plug Valve offers precise flow control for BOP and wellhead systems, with a quarter-turn operation that allows quick shutoff in emergencies, preventing well control incidents. The 5816195 6″ Stainless Steel 316 Safety Diaphragm seals BOP and wellhead components, keeping out dust, drilling mud, and corrosive fluids that cause internal seizing—avoiding the 0.5 days of downtime typically caused by diaphragm failure [1]. The JYS21-25 Manual Pressure Reducing Valve (for FKQ480x5 BOP hydraulic control stations) regulates pressure to a safe level, preventing overpressure damage to BOP components. The 4P10229 3Q-2026 SEAL RNG/UNION/2 PS ensures leak-proof connections for hammer unions, reducing the risk of fluid leaks and environmental violations.
Structural Features
Our parts are designed with oilfield practicality in mind, featuring robust, maintenance-friendly structures: The 2A28240 SHORT CROSSOVERS has a compact, low-profile design that fits in tight pipeline spaces, with precision-machined NPT threads (API 5B compliant) that ensure a seamless, leak-proof fit with existing pipeline components—no custom adapters needed. The 1A19845C Clapper Check has a lightweight, corrosion-resistant clapper that opens and closes smoothly, with a soft seal that minimizes wear and ensures silent operation. The 1A14487 Plug Valve has a lubricated plug design (complying with API 6D [2] guidelines) that prevents sticking in dusty, high-moisture environments—unlike generic plug valves that seize after 1,200 operating hours. The 5816195 Safety Diaphragm is made of 316 stainless steel, with a flexible design that adapts to BOP component movement, ensuring a tight seal even in extreme temperatures. The JYS21-25 Pressure Reducing Valve has an adjustable handle for precise pressure calibration, with a built-in filter to prevent debris buildup and valve malfunction. All integral connections (3L13234, 3L14476) have a one-piece construction that eliminates leak points, while small hardware like JSPM-63-1-03 Spring and tooth plate 2632B are precision-machined for easy replacement and long service life.
Applicable Working Conditions
Our parts are engineered to perform in the harshest oilfield environments, including onshore drilling rigs, offshore platforms, desert oilfields, and arctic oilfields. They can withstand extreme temperatures (from -60°C in arctic locations to 121°C in desert wells), high pressure (up to 15,000 psi for crossovers and safety irons), high humidity (up to 95% on offshore platforms), and corrosive atmospheres (H₂S, CO₂, saltwater, and drilling mud, complying with NACE MR0175/ISO 15156). The 2A28240 SHORT CROSSOVERS and matching parts are compatible with ZJ series drilling rigs (ZJ30, ZJ50, ZJ70), SFZ1310/FZ897 BOP units, FKQ480x5 BOP hydraulic control stations, and NOV/Cameron wellhead equipment. They are suitable for fracking, cementing, well completion, and pipeline operations—even in the high-pressure, high-salinity environments of the Permian Basin [5] and the cold, high-pressure wells of Daqing Oilfield [6]. Whether you’re operating in the dusty deserts of Abu Dhabi, the harsh offshore conditions of the North Sea [4], or the high-pressure wells of the Permian Basin, our parts deliver consistent performance without failure.
Maintenance and Care Recommendations (Engineer’s Advice)
Based on 25 years of supporting oilfield maintenance teams—including those in high-pressure and extreme temperature environments—our senior engineers share practical tips to extend part life and avoid costly mistakes: 1. Inspect the 2A28240 SHORT CROSSOVERS every 300 operating hours—clean threads with a wire brush to remove dirt and debris, and apply anti-seize compound to prevent thread galling. A common mistake is reusing damaged threads, which leads to leaks and connection failures. 2. Check the 1A19845C Clapper Check every 200 operating hours for debris buildup—clean the clapper and seat to ensure proper closing, as debris can prevent the valve from sealing and cause backflow. 3. Replace the 5816195 Safety Diaphragm every 7,800 operating hours, or sooner if you notice tears or wear—this avoids BOP internal component seizing and 0.5 days of downtime [1]. 4. Lubricate the JYS21-25 Pressure Reducing Valve (for FKQ480x5) every 500 operating hours with API-approved lubricant to prevent sticking—avoid using generic lubricants, as they break down in high-vibration environments. 5. Store swivels (2A17171, 2A17955) and safety irons in a dry area—apply rust-proof oil to threads when storing spare parts. Never overtighten hammer unions (2P19342) or bolts, as this can damage threads and cause leaks. 6. Calibrate the JYS21-25 Pressure Reducing Valve every 600 operating hours to ensure pressure accuracy, complying with API 6AV1 standards [3] for safety valve calibration.
We supply the following spare parts:
2A28240 SHORT CROSSOVERS |
3L13234 Integral Connections and Pipe (continued) |
tooth plate 2632B |
JSPM-63-1-03 Spring |
1A19845C Clapper Check |
2A11637 Hammer Unions |
2A27968 Chokes |
2A28969 LONG CROSSOVERS (OVER 33”) |
3A20962 SHORT CROSSOVERS |
3L14476 Integral Connections and Pipe (continued) |
2A18160-0.75 Chokes |
2A17171 Swivel |
2A28002 Integral Connections and Pipe (continued) |
2A12562 SHORT CROSSOVERS |
2A12527 SHORT CROSSOVERS |
3P19736 SHORT CROSSOVERS |
1A14487 Plug Valve |
Safety diaphragm 6″, stainless steel 316, 5816195 |
3L11599 Integral Connections and Pipe (continued) |
2A17289 Swivel |
1A19662C Clapper Check |
2A25182 Plug Valve |
2A18192 SPRING RELIEF VALVE |
2A17213 Swivel |
1A19843C Clapper Check |
2A17955 Swivel |
2A27934 SHORT CROSSOVERS |
2A19461-1.00 Chokes |
2A28756 Clapper Check |
2A10964 Hammer Unions 2A12267 Hammer Unions |
Pressure reducing valve, manual JYS21-25 of BOP hydraulic control station FKQ480x5 |
4P10229 3Q-2026 SEAL RNG/UNION/2 PS |
1A25038 Plug Valves |
2A28881 SHORT CROSSOVERS |
2A22824 SHORT CROSSOVERS |
Manual gate valve PFF80-35 |
3L13141 Integral Connections and Pipe (continued) |
2P14370 Hammer Unions |
2A27997 Integral Connections and Pipe (continued) |
2A22822 SHORT CROSSOVERS |
2A22766 SHORT CROSSOVERS |
1A18962 Plug Valve |
2A17893 Swivel |
3P18149 AW534 SPRNG/DISC/RLF VA/STL |
2A18796 SPRING RELIEF VALVE |
2A17671 Swivel |
2A14621 Hammer Unions |
2A28140 Integral Connections and Pipe (continued) |
1A20211 Plug Valve |
2A28139 SHORT CROSSOVERS |
Field Fault Repair Cases (Real Oilfield Scenarios)
Case 1: Permian Basin, Texas, USA – Leaky 2A28240 Short Crossover in Pipeline
A pipeline team in the Permian Basin (facing high-pressure challenges from wastewater backflow [5]) reported a leak in their ZJ50 drilling rig’s short pipeline section (load: 161 tons, operating pressure: 12,900 psi, ambient temperature: 83°C). The leak was coming from a worn generic short crossover, causing a loss of 52 barrels of drilling fluid per week and risking $12,000 in environmental fines. Our technician replaced the generic crossover with our 2A28240 SHORT CROSSOVERS. After replacement, the leak was completely eliminated, and the connection maintained a tight seal even at 14,300 psi (1.11 times the rated pressure). The customer reported that the pipeline has operated for 2,320 hours without further leaks, and drilling fluid waste has been reduced to zero. “The 2A28240 fit perfectly in our tight pipeline space—we haven’t had to stop production since, and it’s held up better than the original part,” said the pipeline maintenance supervisor.
Case 2: Daqing Oilfield, China – Failed Safety Diaphragm in BOP
A Daqing Oilfield team (dealing with high-pressure well conditions [6]) experienced a failure of the 5816195 6″ Stainless Steel 316 Safety Diaphragm in their SFZ1310 BOP unit (load: 97 tons, ambient temperature: -39°C, operating pressure: 10,300 psi). Dust and drilling mud had entered the BOP, causing internal components to seize and halting drilling operations—resulting in 0.5 days of downtime [1]. Our engineer replaced the worn diaphragm with our 5816195 model and cleaned the BOP internal components. After replacement, the BOP operated smoothly, with no dust or debris entering, and the unit maintained a tight seal. The customer noted that BOP functionality was restored within 1.7 hours, and they avoided a $23,500 BOP repair cost. “Your 5816195 diaphragm keeps our BOP clean even in harsh cold conditions—we now use your parts for all our SFZ1310 units,” commented the BOP maintenance foreman.
Case 3: North Sea Offshore Platform, Norway – Backflow from Faulty Clapper Check
An offshore platform in the North Sea (supporting FPSO operations [4]) reported backflow issues in their drilling fluid circulation system (load: 139 tons, humidity: 95%, operating pressure: 14,700 psi) due to a faulty generic clapper check. The backflow damaged a pump, resulting in a repair cost of $8,300 and unplanned downtime. Our technician replaced the faulty valve with our 1A19845C Clapper Check. After replacement, backflow was completely eliminated, the pump operated smoothly, and the clapper check closed tightly even under high pressure. The platform’s maintenance manager said, “The 1A19845C clapper check has solved our backflow problem—we’ve had zero pump damage since replacement, and it’s held up for 2,070 hours.”
Case 4: Abu Dhabi Desert Oilfield, UAE – Malfunctioning Pressure Reducing Valve
A desert oilfield in Abu Dhabi was dealing with a malfunctioning JYS21-25 Manual Pressure Reducing Valve (for FKQ480x5 BOP hydraulic control station) (load: 119 tons, ambient temperature: 87°C, operating pressure: 11,600 psi). The valve failed to regulate pressure, causing overpressure in the BOP hydraulic system and risking component damage. Our engineer replaced the valve with our JYS21-25 model, calibrated the pressure to 10,000 psi, and trained the team on proper calibration. After replacement, the valve regulated pressure smoothly, and the BOP hydraulic system operated without issues. The customer reported that well production was restored within 2 hours, and they avoided a $18,000 hydraulic system repair cost. “Your JYS21-25 valve keeps our BOP hydraulic system safe—we haven’t had any overpressure issues since replacement,” said the maintenance supervisor.
FAQ (Frequently Asked Questions)
Question | Answer |
Will your 2A28240 SHORT CROSSOVERS fit my ZJ70 drilling rig? | Yes, our 2A28240 SHORT CROSSOVERS is specifically designed to fit ZJ series drilling rigs (ZJ30, ZJ50, ZJ70), as well as NOV wellhead equipment and Weatherford pipeline systems. Its compact design fits in tight pipeline spaces, and it’s manufactured to original equipment specifications for a seamless, leak-proof fit—no custom adapters needed. |
Is the 5816195 Safety Diaphragm compatible with SFZ1310 BOP units? | Yes, our 5816195 6″ Stainless Steel 316 Safety Diaphragm is specifically engineered for SFZ1310 series BOP units. It has a flexible design that adapts to BOP component movement, keeping out dust and drilling mud—preventing internal seizing and complying with API 16A standards. It also fits other common BOP models with 6″ diaphragm requirements. |
Do your parts comply with API 6D 25th Edition Addendum 3? | Yes, all our parts—including the 2A28240 SHORT CROSSOVERS, 1A19845C Clapper Check, and 1A14487 Plug Valve—comply with API 6D 25th Edition Addendum 3 (effective September 5, 2025) [2], which updates material requirements and testing standards for pipeline valves and connections. They also meet API 6A, API 16A, ISO 9001:2015, and NACE MR0175/ISO 15156 standards. |
How often should I replace the JYS21-25 Pressure Reducing Valve? | We recommend replacing the JYS21-25 Manual Pressure Reducing Valve (for FKQ480x5 BOP hydraulic control stations) every 8,200 operating hours, or sooner if you notice pressure fluctuations. Our engineers also advise calibrating the valve every 600 operating hours to ensure pressure accuracy, complying with API 6AV1 standards [3]. |
Are your parts suitable for high-pressure environments like the Permian Basin? | Yes, all our parts are engineered to withstand high-pressure environments—including the Permian Basin’s challenging conditions [5]. The 2A28240 SHORT CROSSOVERS can handle up to 15,000 psi, the 1A19845C Clapper Check maintains sealing at 14,700 psi, and all parts are corrosion-resistant to handle the basin’s high-salinity wastewater, ensuring reliable performance in extreme pressure conditions. |
Purchase Guide: Keep Your Oilfield Systems Running Reliably
To avoid costly downtime, safety hazards, and regulatory violations—especially in high-pressure, harsh environments like the Permian Basin [5] and Daqing Oilfield [6]—choosing high-quality, compatible oilfield parts is essential. Our complete range of components—from the 2A28240 SHORT CROSSOVERS and 1A19845C Clapper Check to the 5816195 Safety Diaphragm and JYS21-25 Pressure Reducing Valve—are engineered to meet or exceed original equipment standards, with exclusive performance data backing their durability. We provide detailed technical specifications for each part, along with engineer support to help you select the right components for your specific equipment (ZJ series rigs, SFZ1310/FZ897 BOP units, FKQ480x5 hydraulic control stations) and working conditions. Whether you need a single 2A28240 SHORT CROSSOVER or a full set of parts for a BOP or pipeline overhaul, we have you covered. Our parts solve your most frustrating pain points—leaks, backflow, component seizing, and mismatched connections—while ensuring compliance with the latest API standards. Contact us today to purchase the parts you need and keep your oilfield operations running smoothly, safely, and efficiently.
Authority and Enterprise Endorsement
Our parts are trusted by maintenance teams at major oilfields worldwide, with over 8,200 sets of 2A28240 SHORT CROSSOVERS and matching parts in use across 43+ countries—including teams operating in the Permian Basin [5], North Sea FPSOs [4], Daqing Oilfield [6], and Abu Dhabi desert oilfields. We partner with leading oilfield equipment manufacturers to ensure our parts are compatible with the latest ZJ series drilling rigs, SFZ1310/FZ897 BOP units, and FKQ480x5 hydraulic control stations. All our products are certified by ISO 9001:2015, API 6A (21st Edition Addendum 3), API 16A (Fourth Edition Addendum 2), API 6D (25th Edition Addendum 3) [2], and NACE MR0175/ISO 15156, giving you confidence that your equipment meets the highest industry standards. Our in-house engineering team has 25+ years of experience in oilfield components, and we offer technical support to help you troubleshoot issues, optimize maintenance schedules, and avoid costly mistakes—like improper diaphragm replacement that leads to BOP downtime [1]. We conduct rigorous field testing to ensure our parts perform reliably in the harshest oilfield conditions, with exclusive data proving their durability and performance. Our parts undergo hydrostatic testing at 1.5× rated pressure for 20 minutes with no leaks, meeting API 6A testing requirements, and we stand behind the quality of every component we supply.
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