SINCE 1997,Qingdao Hainuoao Oilfield Equipment Manufacturing Co.,Ltd(abbreviated as HNA), has been an integrated engineering & manufacturing specialist & supplier recognized worldwide, for its complete range of high quality products of Mud Pump, Plunger Pump, Frac Pump & Spare Parts, High Pressure Forging & Investment Casting, and OEM customization, not only in O&G sector, but also in high speed train, automobile, heavy & special trucks, mining, cross tunnel, civil construction and heavy machinery industries.
HNA is a group company consisting of: Qingdao Headquarter Facilities of Machining, Assembling & Inspection Center, Shandong Heat Treatment Facilities, Hebei High Pressure Forging Facilities, Henan Casting Facilities. Taking benefits from our over 20 years expertise of designing & fabricating technology, state-of-art production & inspection equipment, professional R&D, manufacturing and sales & service teams, full range of products scope, as well as certified qualifications of API Q1, 7K, ISO, Member of IADC Suppliers, and High-End Oil Companies and End Users' Approvals, HNA has gained global reputation as an One-Stop Supplier for high quality and 100% interchangeable products in the O&G pump industry, among partners and end users from USA, Canada, Columbia, Mexico, Brazil, Italy, Britain, Netherlands, Saudi Arabia, UAE, Kuwait, Algeria, Russia, Kazakhstan, India, Indonesia, Malaysia, Vietnam, Australia etc., in North & South America, Europe, MENA & CIS & Pan-Pacific regions. HNA's cost-effective and high quality OEM products and services have greatly helped our clients to reduce their procurement, operation and maintenance cost, and therefore created more value and profit to our partners.
By our World Leading Technology of High Pressure, Ceramic, Compound Alloy, USA Imported Rubber & Polyurethane, Ni-Cr Alloy Spray Surface Treatment, together with dozens of technical patents and advanced production & strict quality management control, HNA is distinguished from other manufacturers or suppliers in the O&G Pump & Parts industry and thus your most optimal & ideal choice of supplier and partner to work together with on a long term and mutual beneficial basis.
HNA believes in Innovation & Technology Create the Future, and we appreciate continuous business from our old and new friends and partners on a long term win-win cooperation, hands in hands together creating the brilliance of ours.
Features
1. Construction and Materials
- Valve Seat Material: The high - pressure forged one - piece integral valve seat is crafted from AISI 8620 (20CrNiMo) or AISI 4119 (20CrMnMo) steel. These steel grades are known for their excellent mechanical properties, providing the valve seat with the strength and durability required for demanding applications. Additionally, customized materials can be provided to meet specific project requirements, allowing for tailoring the valve seat's performance to different operating conditions.
- Heat Treatment: Subjected to world - class heat treatment, the valve seat attains optimal mechanical properties. High tensile strength enables it to withstand substantial forces, while good yield strength ensures predictable deformation under load. Excellent Charpy impact resistance helps it endure sudden impacts, and sufficient elongation provides some flexibility. Moreover, its temperature and corrosion resistance performance exceeds API standards. This extended resistance not only prolongs the valve seat's service life but also makes it suitable for use in harsh environments where high temperatures, corrosive substances, and mechanical stress are common.
2. Precision Machining
- Close - Tolerance Fit: World - top - class precise machining crafts are employed to manufacture high - precision components. Special attention is given to the dimensional matching of the valve seat and the body's working angle. This meticulous approach ensures a close - tolerance fit, which is crucial for the valve seat's performance. A tight fit reduces leakage, enhances the overall efficiency of the valve system, and minimizes wear and tear, enabling the valve seat to operate smoothly for an extended period, even under extreme working conditions.
3. Valve Seat Types and Design
- Diverse Types for Compatibility: The valve seat is available in full - open, 4 - web, 3 - web, and 2 - web types. These are specifically designed to match with different valve body types such as bottom - guide type (4 - wing, 3 - wing), central - stem - guide type, and custom - designed valve bodies. The 4 - web, 3 - web, and 2 - web valve seats feature a higher - strength circular I - beam construction. This design reduces the area of the seat that blocks the fluid - flowing path, facilitating a smoother flow. Additionally, it makes the seat easier to pull out, which can be beneficial during maintenance or replacement procedures.
4. Insert and Sealing Design
- Precise Tapered Insert Design: The precisely tapered design of the insert, which is carefully matched to the seat, provides evenly distributed loading characteristics. This is essential for ensuring better sealing performance. To accommodate different valve types, pump types, and applications, double - angle designs such as 55°, 45°, or other specified tapers are available. This adaptability allows for optimizing the valve's performance in various operating conditions.
5. Compatibility and Performance
- API and Non - API Options: Both API Valve Seat and Non - API Modified Valve Seat versions are available. When paired with the HNA valve, the HNA Valve Seat offers a large metal - to - metal bearing area on its surface. This large bearing area results in even loading of the seat deck within the fluid - end module. As a consequence, it promotes a longer service life for the valve seat and enables maximum fluid flow, enhancing the overall efficiency of the valve system.
6. High - Performance Characteristics
- Resistance Properties: The valve seat exhibits outstanding resistance properties. It has extremely perfect high extrusion/abrasion resistance, which is crucial for withstanding the abrasive forces of fluids flowing through the valve. Its high chemical/corrosion resistance makes it suitable for use in environments where the fluids may contain corrosive substances. Additionally, it can resist high pressures, with a maximum rating of 7,500 Psi, ensuring reliable performance under high - pressure conditions.
- Long Service Life: The valve seat offers an extremely long service life that far exceeds API standards, with a lifespan of over 800 hours. This is a testament to its high - quality construction, from the choice of materials to the manufacturing processes. The extended service life reduces the frequency of valve seat replacements, leading to cost savings in terms of maintenance and downtime.
7. Interchangeability
- Compatibility with Major Valve Seats: The valve seat is fully interchangeable with major valve seat types such as those from Roughneck, Supreme Valve, Mud King Valve, and SWU Valve. It is available in API 3# through API 9# sizes, as well as non - API modified types and sizes. This interchangeability simplifies the process of replacing valve seats in existing systems. It also provides users with more options when choosing components for their valve systems, as they can select from a range of compatible valve seat types.
Product Series
1. HNA - FE - S - FO
- Full - Open Valve Seat: HNA Valve Seat - One - Piece Forged, Full Open. Available in API 3# through API 9# sizes, and non - API modified type & sizes. This model is suitable for applications where a full - open design is preferred, allowing for maximum fluid flow with minimal obstruction.
2. HNA - FE - S - W4
- 4 - Web Valve Seat: HNA Valve Seat - One - Piece Forged, 4 - Web. Available in API 3# through API 9# sizes, and non - API modified type & sizes. The 4 - web design offers a balance between strength and flow - through capabilities, making it suitable for a variety of applications that require a certain level of support and flow control.
3. HNA - FE - S - W3
- 3 - Web Valve Seat: HNA Valve Seat - One - Piece Forged, 3 - Web. Available in API 3# through API 9# sizes, and non - API modified type & sizes. The 3 - web design may be chosen for applications where a slightly different flow - through and strength profile is required compared to the 4 - web design.
4. HNA - FE - S - W2
- 2 - Web Valve Seat: HNA Valve Seat - One - Piece Forged, 2 - Web. Available in API 3# through API 9# sizes, and non - API modified type & sizes. The 2 - web design is likely to be used in applications where a more open flow path is needed while still maintaining some structural integrity.
5. Customized Series
- Fully Customizable Options: Customized Specific Design & Series of HNA Valve Seat - One - Piece Forged, API/Non - API Standard. This series caters to users with unique requirements. It allows for complete customization of the valve seat, including compliance with API or non - API standards, as well as other specific design requirements to meet the needs of different applications.
Detailed Photos
Company Profile
Certifications
FAQ
Q:How can I place order?
A: You can contact us by email or social media like WhatsApp on the order detail or place order on line.
Q:How about the payment?
A: For new clients, advance payment(30%-100% of total amount) is required, the balance need to be paid before the delivery after your inspection.
Q:How can I pay you?
A: By T/T (Telegraphic Transfer) or L/C (Letter of Credit). After you receive the PI, you can make the payment through your bank as per the terms mentioned in PI.
Q: What's the order procedure?
A: First we discuss order details, production details by email ,TM or other social media; then we issue you an PI for your confirmation. You will be requested to make full payment or deposit before we go into production.After we get the deposit, we start to process the order. Depending on the products you order, we usuallyneed a couple of days or even moths to complete production if we don't have the items in stock. Before production has been finished, we will contact you for shipment details, and the balance payment. After payment has been settled, we shall arrange the shipment for you.
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