Cast Steel Flanged Bolted Cover Check Valve

• Media: Water Oil Steam
• Temperature: Ordinary Temperature
• Material: Carbon Steel
• Connection Form: Flange
• Structure: Swing
• Pressure: Ordinary Pressure
• Model NO.: H44H
• Function: Ddcv Double Lobe, Nrvr Silence, Nrvz Silence, Nrvg Silence
• Sealing Form: Check Valve
• Flow Direction: Unidirection
• Standard: ANSI
• Application: Industrial Usage, Water Industrial Usage
• Size: 2" to 48"
• Class: 150lb to 2500lb
• Certificates: API 6D, CE, ISO9001
• Application Fields: Metallurgy,Light Industrial,Electric Power,Petroch
• Delivery Detail: 20~45 Days According to The Specific Quantities
• Transport Package: Standard Export Wooden Case
• Specification: API598, API6d, ANSI, Bs, DIN, JIS
• Trademark: NAIBANG
• Origin: China
• HS Code: 8481300000
• Production Capacity: 8000PCS/Year

Product Description

Cast Steel Flanged Bolted Cover Check Valve


Swing check valves are unidirectional valves preventing backflow of media. Other terms used for these valves are non-return valve or one-way check valve. Check valves work automatically so there is no need for a wheel or actuator. Consider a check valve when there is imminent damage due to backflow or to prevent contamination. That being said, there should be the right orientation of the lone inlet and outlet to ensure that the check valves are functioning properly.


Specifications:
Size: NPS 2"~48",DN50-DN1200
Pressure Rating:Class 150lb-Class 2500lb,PN16-PN420
Body Material: carbon steel, stainless steel, alloy steel, etc
End connection: Flange end, Butt welded end
Working temperature:-196ºC~+560ºC
Design and Manufacture:API 6D / BS 1868
Face to face: ASME B16.10
Flange ends: ASME B16.5
Butt Weld ends: ASME B16.25
Inspection and test: API 598 / API 6D


Features
1.Swing type disc;
2.Compact and reasonable product structure;
3.No need for human intervention;
4.Effectively prevents backflow;
5.Can be used as a backup system;
6.Reliable tightness and good performance;
7.Rapid closing and flexible actions of the valve disc;
8.Can be designed with a Damping Cylinder;
9.Smooth fluid passageway and small fluid resistance;
10.Small closing impact, water hammer is not liable to be generated.

Standard materials of parts

No.	Parts	Materials
1	Body	ATM A216 WCB
2	Seat ring	ASTM A105 + 13Cr
3	Disc	ASTM A216 WCB + 13Cr
4	Disc nut	ASTM A182 F6
5	Hinge	ASTM A216 WCB
6	Hinge pin	ASTM A182 F6
7	Gasket	Stainless steel and graphite spiral wound
8	Cover	ASTM A216 WCB
9	Cover bolt	ASTM A193 B7
10	Cover nut	ASTM A194 2H
11	Washer	Steel

Product:





Workshop:

Inspection




We welcome all the world customers to contact us for more cooperation.

With our years of technical knowledge and experience, we assure you,

Naibang will be one of your best parters in China.