Marine Cast Iron Check Valve

• Customization: Available
• Design Standard: GB/T 12235
• Temperature Pressure Rating: GB/T 12224
• Model NO.: Check Valve
• Structural Length: Factory Standard
• Transport Package: Wooden Cases
• Trademark: TRUST
• Origin: China
• HS Code: 8481804090
• Production Capacity: 10000PCS/Month

Product Description

DN 40 50 65 80 100 125 150 200 250 300

Pls contact us for more details.


Petroleum, chemical industry, pharmacy, fertilizer, power industry etc.
 
Advantage
1.GB lift check valve is self-sealing valve. The disc can be acted by the flow which can protect against the media flow back.
2.The disc with spring can keep the valve work in any direction.
3.Reasonable structure, reliable sealing, excellent performance and attractive appearance make a TKFM valve. 


 Material list(CN standard):

NO.	Part Name		Carbon Steel Series		Stainless Steel Series			Alloy Steel Series		Low-temperature Steel Series
1	Body		WCB		CF8			WC6		LCB
2	DISC		WCB		CF8			WC6		LCB
3	Washer		Flexible graphite+ss304		Flexible graphite+ss304			Flexible graphite+ss304		Flexible graphite+ss304
4	Bonnet		WCB		CF8			WC6		LCB
5	Studs		35CrMoA		0Cr18Ni9(304)			35CrMoA		0Cr18Ni9(304)
6	Nut		35#		0Cr18Ni9(304)			35CrMoA		0Cr18Ni9(304)
7	Spring		60Si2Mn		0Cr18Ni9(304)			0Cr18Ni9(304)		0Cr18Ni9(304)

Technical Specification

Design Standard			GB/T 12235
Temperature Pressure Rating			GB/T 12224
Structural Length			Factory Standard
Flange Dimensions			GB/T 9113,GB/T 79
Inspection and Test			JB/T 9092,GB/T 13927
nominal pressure			PN1.6	PN2.5	PN4.0	PN6.4	PN10.0	PN16.0
Test Pressure(Mpa)	Body Test		2.4	3.75	6.0	9.6	15.0	24.0
	High Pressure Seal		1.76	2.75	4.4	7.04	11.0	17.6
	Low Pressure Seal		0.6	0.6	0.6	0.6	0.6	0.6
Applicable temperature			-196°C~550°C(Differeent temperature use different material)
Applicable Medium			water,gas,oil and corrosive media(different media use different material)