Notice:The original Zhejiang Chaoda valve Co., Ltd upgraded itself to Chaoda Valves Group Co., Ltd, that is the Chaoda Valves Group, and as Chaoda Group for short.


Metal Seated Floating Ball Valve

Metal Seated Floating Ball Valve

Metal Seated Floating Ball Valve developed by CHAODA Valves Group has the structure of spring pre-loaded seat to avoid the stuck phenomenon. This structure could ensure the tightly touch between the sealing surface of ball&seat ring when valve is in the closed position. Moreover, it could eliminate the stuck phonomenon  which is caused by the expansion of internal parts because of the impact of high temperature as the spring pre-loaded seat could absorb the expansion.

To ensure the perfect sealing of the Q41H Metal to metal sealed ball valve, we use many advanced hardening technology according to different working condition and needs such as ultro-sonic spray coating, nickel base spray welding, surface specially hardening, STL spray welding, ceramic material with high strength&hardness property. The surface hardness of the ball and seat coulld generally reach more than HRC60, and maximun up to HRC74 and the material of sealing face could stand temperature of 540℃, and maximun 980℃。

Metal Seated Floating Ball Valve

Type: QA41Y,QA341Y,QA641Y,QA941Y
Bore: NPS½~NPS6,DN15~DN150
Rating: Class150~Class1500,PN16~PN100
Material: Carbon Steel,Stainless Steel,Alloy Steel,Duplex Stainless Steel
Operation: Manual,Gear Operated,Electric Operated,Pneumatic Operated
Applicable: Oil,Chemical,Natural Gas,Petrochemical,Coal Chemical and so on

Honor:Zhejiang Famous Brand


Metal Seated Floating Ball Valve product description

Metal Seated Floating Ball Valves (Flanged general or butt-welding connection optional) are suitable for using on various kinds of pipeline from pressure Class 150 to Class 1500, PN16 to PN100 to cut off or allow the flowing of medium. By using different material, the valves could be suitable for medium such as water, steam, oil, nitric acid, acetic acid, oxidizing substance, carbamide and etc. Manual/worm gear/pneumatic or electric actuators could be chosen by needs.

Ball valves are an important mechanical product related with society construction, national defense construction and people's life. Ball valves are used on the pipeline to cut off or connect the flowing of meduim in the process/industries of : The process of mining/refining/transporting Petroleum, natural gas, coal; The manufacturing process of chemicals/pharmacy/food; The system of hydropower, firepower, nuclear power; The rural/urban system of water draining, heating and gas supply; The irrigation and draining system of farmland and also the manufacturing system of metallurgy.

Metal Seated Floating Ball Valve product features

The metal seated Ball Valve developed by Chaoda has following good characteristics: good sealing performance, reliable safety guarantee, long life span and etc.

1. The lever could be made in carbon steel or stainless steel with stopping plate which could also equipped with locking device in case of wrong operation. There is clear mark of "open&close" on the lever.

2. The stem with blow-out proof features used for metal seated ball valve is integrated forged with hardness HB220~250. 

3. Braided or flexible graphite packing is used to ensure reliable sealing of stem.

4. Anti-static features.

5. Nnormally floating type for DN150, trunnion type for DN200.

6. Emergent grease injection: emergent injection device could be installed in seat and stem to realize urgent sealing. And could have extened stem for installing convenient if needed.

Metal Seated Floating Ball Valve standards

  Design and manufacture standards:API 6D, API 608, GB/T 12237, BS 5351, GB/T 21385-2008

  Face to face dimensions standards:ASME B 16.10, GB/T 12221

  Flanged Ends standards:ASME B 16.5、GB/T 9112~9124、HG/T 20592、HG/T 20615、JB/T 74~90、JIS B2238

  Testing inspection standards:API 598, GB/T 13927, GB/T 26480, JB/T9092, ISO 5208

Metal Seated Floating Ball Valve parts and material

Metal Seated Floating Ball Valve main size and weight

CHAODA valves group co.,ltd. Professional manufacturing Metal Seated Floating Ball Valve.


How to Order:   

1.Clients could call telephone +86-0577-67319962 or email us your enquiry including following information.

①Valve’s type, End to End dimension ②Connection Ends ③Nominal diameter ④Service medium and temperature and working pressure range
⑤Material, test standard and other requirement ⑥CHAODA could supply all kinds of actuator and spare parts and so on as client’s requirement.

2.When received clients’ enquiry, we would select the suitable valves for your and give you a offer.

3.And have a communication over the Metal Seated Floating Ball Valve delivery or other special requirement.

4.When have special requirement on your Metal Seated Floating Ball Valve products, please specify it in the purchasing order.

5.Should you have any question, please send email to