Description
In-Line Flapper Check Valves 单向阀
20,000 PSI CWP | 1″-3″ Sizes | Abrasion Resistant Flapper | Replaceable Seat Design
Product Overview
The CAMTOP In-Line Flapper Check Valve is a high-performance backflow prevention valve engineered for high-pressure well intervention and stimulation services. Rated for 20,000 PSI Cold Working Pressure (CWP), it features an optimized flapper dynamics system, an abrasion-resistant carboxylated nitrile flapper face, and a field-replaceable seat design that ensures maximum uptime and minimum maintenance cost across the toughest downhole conditions.
Working Pressure: 20,000 PSI CWP | Sizes: 1″, 1½″, 2″, 3″ | End Connections: 2002 M×F Hammer Union | Service: Slick Water, Sand, Proppant, Gel, Cement
Product Image
CAMTOP In-Line Flapper Check Valves — Available in 1″, 1½″, 2″, and 3″ nominal sizes
Assembly Drawing
In-Line Flapper Check Valve Cross-Section — Three main internal components — For reference only
Key Features
- 20,000 PSI Cold Working Pressure (CWP): Designed for extreme-pressure fracturing, acidizing, and cementing operations
- Optimized Open Water Path: Flapper dynamics provide optimum flow with minimal pressure differential across the valve
- Abrasion Resistant Flapper: Carboxylated nitrile flapper face resists wear from slick water, sand, proppant, gel, and cement
- Replaceable Seat Design: Separate seat/body construction allows quick field replacement of worn seats without valve body change-out
- Multiple Size Options: Available in 1″, 1½″, 2″, and 3″ nominal bore sizes to match your flow line configuration
- Dual Flow Configurations: Both standard and reverse flow options available for flexible installation requirements
- 2002 M×F Hammer Union Connections: Industry-standard end connections for quick make/break compatibility
- Complete Spare Parts Program: Dedicated repair kits (PS19720) and elastomer sets (P535387/P535687) stocked for fast turnaround
- API Compliant Manufacturing: Full material traceability, PMI testing, and hydrostatic certification on every unit
- Compact Lightweight Design: Only 16.91 inches long, 8.00 lbs (3.63 kg) — easy handling and installation
Technical Specifications
| Nominal Size | CWP (PSI) | Service | End Connections | Flow Direction | Part Number | Length in. | OD in. | Weight lb | Repair Kit | Elastomer Set |
|---|---|---|---|---|---|---|---|---|---|---|
| 2″ | 20,000 | Standard | 2002 M×F | Standard | P3269158 | 16.91 | 8.00 | 123 (56) | PS19720 | P535387 |
| 2″ | 20,000 | Standard | 2002 M×F | Reverse | P558714 | 16.91 | 8.00 | 123 (56) | PS19720 | P535687 |
| 1″ | 20,000 | Standard | 2002 M×F | Standard | PS34738 | 16.91 | 8.00 | 123 (56) | PS19720 | P535387 |
| 1½″ | 20,000 | Standard | 2002 M×F | Standard | PS43340 | 16.91 | 8.00 | 123 (56) | PS19720 | P535387 |
| 1½″ | 20,000 | Standard | 2002 M×F | Reverse | PS19734 | 16.91 | 8.00 | 123 (56) | PS19720 | P519720 |
| 3″ | 20,000 | Standard | 2002 M×F | Standard | PS20099 | 16.91 | 8.00 | 123 (56) | PS19720 | P535387 |
Note: All dimensions and weights are approximate. Actual values may vary slightly based on specific configuration. Contact CAMTOP for certified dimensional drawings.
Main Components
| Item | Component | Material | Description |
|---|---|---|---|
| ① | Valve Body / Housing | Alloy Steel (Heat-Treated) | High-strength forged body rated for 20,000 PSI working pressure with 2002 hammer union connections |
| ② | Flapper | Carboxylated Nitrile Rubber + Metal Core | Abrasion-resistant flapper face designed for optimal sealing under low differential pressure conditions |
| ③ | Elastomer Seat | Nitrile / HNBR Composite | Replaceable seat assembly providing metal-to-elastomer seal interface; separate from body for easy field replacement |
Applications
- Slick Water Fracturing: Low-flow-differential design minimizes pumping losses during high-rate slick water treatments
- Sand-Laden Fluid Operations: Abrasion-resistant flapper withstands continuous exposure to sand and proppant slurries
- Gel / Crosslinked Fracturing: Reliable seal integrity maintained across viscous fluid systems and varying viscosities
- Cementing Services: Full 20,000 PSI rating handles primary and squeeze cementing job pressures safely
- Coiled Tubing Operations: Compact size ideal for coiled tubing string and well intervention flow line integration
- Well Control & Intervention: Essential safety component in high-pressure pump-in, kill, and circulation operations
Quality Assurance & Testing
- Material Traceability: Full mill test reports (MTRs) provided for all metallic components with PMI verification
- Hydrostatic Pressure Test: Every valve tested to 1.5 × working pressure (30,000 PSI) with zero-leak acceptance criteria
- Dimensional Inspection: Critical dimensions verified per engineering drawing using calibrated measuring equipment
- Elastomer Validation: Hardness, tensile strength, and compression set testing performed on every batch
- Surface Finish Verification: Seating surfaces inspected to meet Ra finish requirements for reliable sealing
- Packaging Inspection: Final visual check and protective packaging to prevent transit damage
Spare Parts List
| Part | Part Number | Applicable Sizes |
|---|---|---|
| Repair Kit (Complete) | PS19720 | All Sizes |
| Elastomer Set (Standard Flow) | P535387 | 1″, 1½″, 2″, 3″ |
| Elastomer Set (Reverse Flow, 2″) | P535687 | 2″ |
| Elastomer Set (Reverse Flow, 1½″) | P519720 | 1½″ |
Frequently Asked Questions
Q: What is the working pressure of the In-Line Flapper Check Valve?
A: The CAMTOP In-Line Flapper Check Valve is rated for 20,000 PSI Cold Working Pressure (CWP), suitable for high-pressure fracturing and cementing operations.
Q: What sizes are available?
A: Available in 1″, 1½″, 2″, and 3″ nominal bore sizes. All feature 2002 M×F hammer union connections with both standard and reverse flow options.
Q: What makes the flapper abrasion resistant?
A: The flapper face uses a specialized carboxylated nitrile rubber compound engineered to resist abrasive wear from slick water, sand, proppant, gel, and cement fluids.
Q: Can the seat be replaced?
A: Yes. The separate seat/body design allows the elastomer seat to be replaced in the field as needed without replacing the entire valve body, reducing downtime and maintenance costs significantly.
Q: What services is this valve recommended for?
A: Ideal for slick water fracturing, sand slurry operations, proppant/gel treatments, and cementing. The open water path design maintains low flow differential across all these demanding services.
Q: What end connection type is used?
A: All models use industry-standard 2002 Male × Female (M×F) hammer union end connections, ensuring full interchangeability with existing high-pressure flow lines and iron.
Q: What spare parts are available?
A: Repair kit PS19720 covers all sizes. Elastomer sets include P535387 (standard), P535687 (reverse 2″), and P519720 (reverse 1½″). All spares kept in stock for immediate dispatch.
Q: How does the flapper design improve performance?
A: The optimized flapper geometry delivers maximum flow area with minimal pressure drop. This reduces pump horsepower requirements and improves overall treatment efficiency during high-rate operations.
Q: Is this valve API compliant?
A: Yes. Manufactured in compliance with applicable API specifications. Each valve ships with full material certifications, hydrostatic test reports, and serial number traceability documentation.
Q: What is the typical lead time?
A: Stock items ship within 2–4 weeks. Custom configurations or bulk orders may require 4–6 weeks. Express delivery options available — contact our sales team for current availability and quotation.
Why Choose CAMTOP?
- API compliant design and manufacturing with full material traceability
- ISO 9001 certified quality management system
- Factory-direct pricing — no middlemen, OEM-quality at competitive prices
- Complete documentation package: material certificates, hydrostatic test reports, and traceability records
- Abrasion-resistant carboxylated nitrile flapper for extended service life in abrasive fluids
- Spare parts and repair kits readily available from stock
- Global shipping network covering North America, Middle East, Asia-Pacific, Europe, and Africa
- Technical support including sizing consultation, custom configuration, and after-sales troubleshooting
Contact Us
Email: sales@cposl.com
Phone: 86-18621723891
Web: www.camtop-oilfieldtools.com
Address: No. 432, Fute North Road, Pudong District, Shanghai, China
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