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.


Cast Steel Gate Valve

Cast Steel Gate Valves

CHAODA Valves Group is specialized in manufacturing Cast Steel Gate Valve with following good characteristics: good sealing performance, reliable safety guarantee, long life span and etc. The general features of this valve: Bolted bonnet or pressure sealing boonet(For high pressure gate valve); OS&Y; Rising stem and non-rising handwheel; Wedged single disc(Flexible or solid type); Metal to Metal sealed face.

Integral forged stem is usually made from A182-F6(1Cr13) with great tensile strength for cast steel gate valve so there would be no accident of disc trapped in the valve body owing to the stem head's accidental rupture. Back sealing structure is adopted to the head of stem to ensure no external leakage when valve is in full opening position. The connection of stem and disc is T type which ensures the gate could move smoothly with the guiding rib. 

Cast Steel Gate Valve

Type: Z41Y,Z41H,Z40Y,Z40H
Bore: NPS½~NPS66,DN15~DN1650
Rating: Class150~Class900,PN10~PN160
Material: Cast Steel
Operation: Manual,Gear Operated,Electric Operated,Pneumatic Operated
Applicable: Oil,Chemical,Natural Gas,Petrochemical,Coal Chemical and so on


Cast Steel Gate Valve product description

Cast Steel Gate valves(Generally flanged connection, but Butt-welding optional) are suitable for use on various kinds of pipeline from Class150 To Class900, PN10 To PN160 to cut off or connect the flowing of medium. By using different material, the Cast Steel Gate Valve could be suitable for medium such as water, steam, oil, nitric acid, acetic acid, oxidizing substance, carbamide and etc. Manual/bevel gear/pneumatic or electric actuators could be chosen by needs. 

Molded flexible graphite is used for packing material. PTFE or combined packing material can be also used if being asked by the customer. The internal surface of the stuffing box, of which area is contacted with the packing, is of excellent finish (Ra 3.2μm). The stem surface, contacted with the packing, should be rolled and pressed after being precisely machined so as to reach the high finish(Ra 0.8μm) and compactness requirement and ensure the reliable tightness of the stem area.

Cast Steel Gate Valve product features

Cast Steel Gate valves developed by Chaoda have following good characteristics: good sealing performance, reliable safety guarantee, long life span and etc.

 ①API manual operated gate valve is produced as to international standard with reliable sealing performance.

 ②Compact&Reasonable structure with good appearance.

 ③Flexible wedge disc is adopted, and for large size gate valve, rolling bearing is used to have a easy closing&opening.

 ④Various types of Body material with all types of packing&gasket according to the working condition or client's need could be chosen to make the valve suitable for very wide range of pressure, temperature& medium.

 ⑤The flange&flange's sealing face could be produced with different types standard both domestic&overseas to meet various project&client's needs

Cast Steel Gate Valve standards

 Design and manufacture standards:API 600, ISO 10434, API 6D, GB/T 12234
 Face to face dimensions standards:ASME B 16.10, GB/T 12221
 Flange dimensions standards:ASME B 16.5,ASME B 16.47, MSS SP-44, GB/T 9112~9124, JB/T 74~90, HG/T 20592
 Testing inspection standards:API 598, API 600, ISO 10434, API 6D, GB/T 26480

Cast Steel Gate Valve parts and material

Cast Steel Gate Valve main size and weight


CHAODA valves group co.,ltd. Professional manufacturing Cast Steel Gate 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 Cast Steel Gate Valve delivery or other special requirement.

4.When have special requirement on your Cast Steel Gate Valve products, please specify it in the purchasing order.

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