
In order to reduce the pressure and displacement fluctuation of the drilling mud pump, an air bag is usually installed on the discharge pipeline. The suction air bag provided by our company has advanced structure and reliable performance, which can make the mud pump achieve the best suction effect and is widely used in petroleum , In the high-pressure pipeline of chemical transportation. This product can also be used as a stabilizer and shock absorber for air extractors.
The role of air bag:
1. Reduce pressure fluctuations and stabilize pressure.
2. Increase water horsepower.
3. Reduce lost circulation.
The air bag is divided into two types: Discharge Air Bag and Suction Air Bag.
1.Discharge Air Bag: Reduce pump displacement and pressure fluctuation;
2.Suction Air Bag: Improve inhalation conditions and prevent cavitation.
Size | OD of the bottom(mm) | OD of the above mouth (mm) | ID of the above mouth(mm) | Height | Mouth edge | Chassis number |
f-1300/1600(kb-75) | 530 | 279 | 240 | 378 | 16 | 1 |
3NB-1000/1300(3NB) | 590 | 314 | 280 | 286 | 23 | 1 |
f-500/800/1000(kb-45) | 445 | 235 | 196 | 332 | 16 | 1 |
SL-1300A | 465 | 270 | 240 | 250 | 21 | 1 |
600 pump | 530 | 300 | 260 | 350 | 30 | 1 |
KB-25 | 368 | 203 | 162 | 297 | 15 | |
350 pump | 350 | 216 | 190 | 250 | 20 |




We are based in Shandong, China, since 2017. We cater to Eastern Europe (40.00%), the Mid East (20.00%), Domestic Market (15.00%), South America (15.00%), and North America (10.00%). Our dedicated team comprises approximately 5-10 professionals in our office.
2. How can we guarantee quality?
We consistently provide a pre-production sample before mass production.
We perform thorough final inspections before shipment.
3. What can you buy from us?
We offer a wide range of products including drilling rigs, mud pumps, top drives, drawworks, and various spares.
4. Why should you buy from us and not other suppliers?
Rosenwell Petro is a highly reputable manufacturer and solution provider for mud pumps and drilling pumps in the oil and gas industry. We specialize in consumable parts, focusing on increasing parts' lifespan, reducing operational costs, and shortening downtime. Our parts are meticulously manufactured to the highest standards.
5. What services can we provide?
Accepted Delivery Terms: FOB, CFR, CIF, EXW, CIP, FCA, CPT, DDP, DDU, Express Delivery.
Accepted Payment Currencies: USD, EUR, CNY.
Accepted Payment Types: T/T, L/C, D/P, D/A, MoneyGram, Credit Card, PayPal, Western Union, Cash, Escrow.
Languages Spoken: English, Chinese, Spanish, Japanese, Portuguese, German, Arabic, French, Russian, Italian.
Best IBOP supplier, your reliable partner!

About Us:
Shandong Rosenwell Petroleum Technology Co., Ltd. (hereinafter referred to as 'Rosenwell') is strategically located in Dongying City, the second-largest oilfield and the biggest petroleum equipment industry base in China.
Since 2010, Rosenwell has been engaged in top drive servicing and the supply of interchangeable spares. We are a leading supplier of interchangeable replacement spares for top drive brands such as:
NOV, CANRIG, TESCO, BPM,
TPEC, JH,
and more.
etc.
Warranty :
- Our products boast reliable quality, tested and approved by the market.
- We offer competitive pricing, adding significant value to our partners.
- We maintain stock availability, ensuring the shortest lead times.
- We provide all types of mechanical and rubber seals, and rings.
- We offer repair kits for both hydraulic and mechanical systems.
- We supply regular expendable assemblies, such as IBOP, washpipe assemblies, S-Pipes, *** assemblies, hydraulic cylinder assemblies, yokes,
actuators, cam followers, and more.

Shandong Rosenwell Petroleum Technology Co., Ltd.
Contact Person: Chelsy Gao
Mobile: (+86) 178-6052-1687
Address: 4th Floor, No. 10 Yandong Road, Dongying City, Shandong, China.