DN65 DN100 Stainless Steel Single Plate Wafer Check Valve

Product Description

J-VALVES provide Industrial Valves, including , , , ,, and other types , which use for pipeline and equipment connections. 
 
Our Products could produce in both casting and forging type to meet different applications. J-VALVES products could meet  standards requirements. 

Product Description

Nominal Diameter	2" ~ 48" (DN50 ~ DN1200)
Pressure Class	150LB ~ 2500LB (PN20 ~ PN420)
Temperature Range	-29℃ to +425℃
Body	CF8, CF8M, CF3M, WCB (stainless steel lining optional)
Disc	CF8, CF8M, CF3M, CF8M with Stellite overlay
Stem / Spring	F304, F316, 17-7PH, Inconel X-750 (high temperature spring)
Sealing Surfaces	machined body surface, Stellite overlay, EPDM /  PTFE insert
Bolting	A2-70, A4-80 stainless steel bolts
End Connection	Wafer type, conforming to ISO 5752, API 594, EN 558
Flange Standard	ASME B16.5
Design Standard	API 594, API 6D
Test Standard	API 598
Face-to-Face Dimension	ASME B16.10

Design Features

Stainless Steel Construction: The valve body and disc are cast or forged from stainless steels such as CF8 (304), CF8M (316), and CF3M (316L), delivering excellent corrosion resistance and hygienic performance.
 Single Disc Design: The single-piece disc rotates around a fixed shaft with a large opening angle, low flow resistance, quick closing, and low water hammer effect.
 Wafer-Type Compact Structure: The valve body is much thinner than flanged check valves, lightweight and requiring minimal installation space, ideal for compact piping layouts.
 Dual Guide Rib Structure: Upper and lower guide ribs are integrated inside the valve body to ensure stable disc operation, preventing jamming and vibration.
 Spring-Assisted Closure: Stainless steel springs are available as an option for reliable closure in any mounting orientation, with outstanding sealing performance under low-pressure conditions.

Applications

Pump Discharge Protection: Installed at the outlet of centrifugal pumps and metering pumps to prevent media backflow and impeller damage during pump shutdown.
 Compressor Systems: Used at the inlet and outlet of air compressors and gas compressors to prevent reverse rotation and gas backflow when the unit is stopped.
 Boiler Feed Water: Suitable for steam boiler feed water pipelines to prevent backflow of steam or hot water from contaminating the feed water system.
 Chemical Processing: Applied in piping systems for corrosive acids, alkalis and salt solutions, with stainless steel construction ensuring excellent corrosion resistance.
 HVAC Systems: Used in cooling water and hot water circulation systems of heating, ventilation and air conditioning (HVAC) systems to prevent water backflow when pumps stop operating.
 Marine Engineering: The compact structure is ideal for confined spaces onboard vessels, used in ballast water, bilge water and fuel oil systems.

Pressure Testing

Testing and Inspection standard according to API598

Pressure	150LB	300LB	600LB	900LB	1500LB	2500LB
Strength Testing	3.0	7.5	15.4	23.0	37.5	63.0	Mpa
Seal Testing	2.2	5.5	11.2	16.9	27.5	46.2
Air Testing	0.6	0.6	0.6	0.6	0.6	0.6

After-sales Service

1.  24/7 Global Technical Support.
2.  Rapid Emergency Repair & Replacement.
3.  On-Site Field Service Technicians.

4.  Comprehensive Valve Repair & Overhaul.
5.  Genuine OEM Spare Parts Guarantee.
6.  Proactive Maintenance Programs.

7.  Extended Warranty Options.
8.  Valve Retrofit & Upgrade Services.
9.  Detailed Installation & Operation Training.
10. Full OEM Documentation & Lifecycle Support.

Company Profile

Zhejiang J-VALVES Fluid Equipment Co., Ltd., founded in 2018 and headquartered in Wenzhou, Zhejiang Province, is an integrated manufacturing and trading company specializing in the export of industrial valves and pipeline fittings. The company holds certifications includingFire Safe Certification, demonstrating its commitment to providing customers with safe, reliable, and competitive products, along with professional industry solutions and high-quality services.
 
J-VALVES main product lines include . These products are available in materials such as , catering to demanding applications in petroleum, architecture, metallurgy, chemical, electricity, and hydraulic industries.
 
Supported by a dedicated technical team and rigorous quality inspection department, J-VALVES delivers customized products and services. Every product undergoes to ensure excellence. The company's meticulous management system and growing, dynamic team drive its sustainable development.

Factory Advantage

Other Products

OEM/ODM capabilities
Competitive pricing & bulk discounts
Fast shipping & customs clearance support
Turnkey project solutions
Professional engineer and quality control team
100% inpection before delivery 
15000 square meters factory 
Strong production capacity
Professional coordination skills

Floating type Ball Valve
Trunnion type Ball Valve
Soft Seat Ball Valve
Metal Seat Ball Valve
API600 Gate Valve
API623 Globe Valve
BS 1868/API6D Check Valve
Plug Valve
Triple Offset Butterfly Valve
Y & Busket Type Strainer

Certifications

Packing & Delivery

Delivery Time	10-30 Days
Package	Standard Exporting Plywood Case
Shipping Port	Ningbo/Shanghai sea port, China
Shipping Terms	EXW, FCA,CPT CIP, DAP, DPU. DDP, FAS.FOB.CFR.CIF
Payment Terms	T/T. DP, LC at sight
Payment condition	30% prepayment, 70% balance paid before shipping or against copy of BL
Country of Origin	China
Production Capacity	8000 Ton/year
Certificates	API6D.API600,API602,API607.CE,ISO9001,IS014001,IS045001.SIL3.and IS015848.CE
MOQ	10 PCS/size(Special material depends on)

Products Package

FAQ

1. Are you a trading company or factory? 
We are a manufacturer factory and we also have our own exporting license. 

2. Do you have certificate? 
Yes, ISO9001, ISO14001, ISO45001, API6D, API600, API602, CE, PED certificate. We also have some patents in design. 

3. How do you control the quality? 
In quality control, the most important is to avoid material mixing. 
In our factory, 3 spectro PMI machines are used in raw material warehouse, production plant, dispatch plant. 
Pressure inspecting machine, PMI machines, RA roughness spector, hardness testing machine...All machines help in inspection.

4 staff inspect during production in different sections
5 staff inspect the finished productions to avoid shortage, poor quality, mixing chemical...

4. How big factories do you have?

We have total 25000 square meters in Wenzhou city & Lishui city, Zhejiang Province, China. 

5. If there is any quality problem, how do you solve it? 
We are very proud that we never make one customer leave us. We are not 100% perfect, there is some quality problem. 
Normally replacement, or compensation, or resend goods to customers as per the condition. To be discussed as per condition. 

6. How long is your delivery time? 
For normal products in 7-10 days; For bulk order, in 15-25 days. It depends. 

7. Warranty time? 
3 years warranty for all of our stainless steel products. Gaskets or the easy broken parts are not included due to the different application for customers. 

8. Why trust in us? 
14 years in this industry. It makes us professional. Good credit in this market. 
All of our machines are the assurance of our responsibility. 

9. Free sample? 
Free samples can be provided for first cooperation under sincere cooperation