Marine Swing Valves
Your Professional Marine Swing Valves Supplier
Qingdao Keysmile Valves Co. Ltd. is a diversified manufacturing company located in the Environmental Protection Industrial Park of Jimo District, Qingdao, China. Our core expertise and primary focus lie in precision sheet metal fabrication and marine valves.
We specialize in the production of high-quality hardware components and parts for a wide range of industries. Our capabilities include crafting components from various materials, including steel, iron, steel, and aluminum, through processes like cutting, bending, punching, and assembling. We are particularly well-known overseas for manufacturing various brackets, charging piles, furniture hardware, public facilities industry, various cabinets, trailer compartments, etc.
Why choose us
Comprehensive Quality System Assurance
The company is ISO 9001 certified and strictly implements process control and data traceability. From raw material inspection and production monitoring to final product testing, detailed records are kept to ensure consistent quality and a high pass rate for every batch.
High-Precision Machining and Reliable Performance
Equipped with advanced CNC machining equipment and testing instruments, and supported by an experienced technical team, we can achieve micron-level precision control. Our metal components meet the stringent requirements of European and American customers in terms of strength, wear resistance, and dimensional accuracy.
Efficient and Stable Delivery Capability
With a lean production system and intelligent scheduling management, we ensure visualization and efficient coordination throughout the production process. Even for large-volume orders, we guarantee on-time delivery and stable quality, meeting the continuous supply demands of long-term partners.
Flexible Customization and Technical Support
We not only process parts according to customer drawings (DWG, STEP, PDF, etc.), but also provide structural optimization and process improvement suggestions to help customers reduce costs and improve assembly efficiency — truly delivering a one-stop service from prototyping to mass production.
The Marine Swing Valves are robust cast steel valves designed to control flow in marine applications. These API valves feature a swinging disc that hinges or trunnions, blocking the flow in one direction to prevent reverse flow or allowing forward flow when off the seat. The seat opening can be perpendicular to the centerline or at an angle. Swing check valves are commonly used for larger applications.
Dimensions - unit:mm
|
Rating |
SIZE |
φd |
L |
H |
FF Flange |
|||
|
φD |
φC |
t |
n-φh |
|||||
|
5K |
50A |
50 |
190 |
97 |
130 |
105 |
16 |
4-15 |
|
65A |
65 |
220 |
119 |
155 |
130 |
18 |
4-15 |
|
|
80A |
80 |
250 |
129 |
180 |
145 |
18 |
4-19 |
|
|
100A |
100 |
280 |
146 |
200 |
165 |
20 |
8-19 |
|
|
125A |
125 |
330 |
171 |
235 |
200 |
20 |
8-19 |
|
|
150A |
150 |
380 |
198 |
265 |
230 |
22 |
8-19 |
|
|
200A |
200 |
460 |
235 |
320 |
280 |
24 |
8-23 |
|
|
250A |
250 |
550 |
290 |
385 |
345 |
26 |
12-23 |
|
|
10K |
50A |
50 |
210 |
109 |
155 |
120 |
20 |
4-19 |
|
65A |
65 |
240 |
126 |
175 |
140 |
22 |
4-19 |
|
|
80A |
80 |
270 |
136 |
185 |
150 |
22 |
8-19 |
|
|
100A |
100 |
300 |
153 |
210 |
175 |
24 |
8-19 |
|
|
125A |
125 |
350 |
180 |
250 |
210 |
24 |
8-23 |
|
|
150A |
150 |
400 |
205 |
280 |
240 |
26 |
8-23 |
|
|
200A |
200 |
480 |
242 |
330 |
290 |
26 |
12-23 |
|
Product Structure Drawing
Hydro. test pressure - unit:kgf/cm²
|
Rating |
5 |
10 |
|
Hydraulic inspection for body |
10.5 |
21 |
|
Watertight inspection for valve seat |
7.7 to 4 |
15.4 to 4 |
Max. working pressure - unit:kgf/cm2
|
Rating Fluid condition |
5 |
10 |
|
Oil and pulsation water |
5 |
10 |
|
Non - shock water of 120℃ or less |
7 |
14 |
Material List
|
NO. |
Parts |
Material |
|
1 |
Body |
FC200 |
|
2 |
Bonnet |
FC200 |
|
3 |
Disc |
CAC406(BC6) |
|
4 |
Valve seat |
CAC406(BC6) |
|
5 |
Arm |
CAC406(BC6) |
|
6 |
Hinge pin |
C3604 |
|
7 |
Plug |
C3604 |
|
8 |
Hex. nut |
C3604 |
|
9 |
Washer |
C2801 |
|
10 |
Split pin |
C2600 |
|
11 |
Stud bolt |
SS400 |
|
12 |
Hex. nut |
SS400 |
|
13 |
Gasket |
NON ASBESTOS |
|
14 |
Gasket |
PTFE |
Features
Material
High-quality cast iron body with corrosion-resistant internal components.
Design
Swing-type disc for smooth operation and low-pressure drop.
End Connection
Flanged ends for easy installation and secure fitting.
Operation
Non-return design – prevents backflow and protects pumps, compressors, and piping systems.
Size Range
Available in standard marine sizes.
Standards Compliance
Manufactured in accordance with international marine and industrial standards.
1-Body: Cast Iron
2-Bonnet: Cast Iron
3-Disc: Bronze
4-Seat: Bronze
5-Gasket: Non-asbestos
Applications
Marine and Shipbuilding: Used in seawater, freshwater, and other fluid systems on ships.
Industrial: Suitable for various industrial applications requiring check valves with JIS standards.
Installation
Flanged Ends: Designed for bolted connections to flanges on the pipeline.
Orientation: Usually installed in horizontal pipelines, but can also be used in vertical applications with upward flow.
Maintenance
Access: The bolted cover allows for easy inspection and maintenance of internal components.
Durability: Cast iron construction and corrosion-resistant internal materials ensure long service life with minimal maintenance.
FAQ
We're professional marine swing valves manufacturers and suppliers in China, specialized in providing high quality customized service and OEM service. We warmly welcome you to buy high precision marine swing valves at the best price from our factory.
Marine Cast Iron Swing Check Valves, marine swing valves