Lift Non Return Swing Check Valve with Flanged End

• Media: Oil
• Temperature: Low Temperature
• Material: Cast Steel
• Connection Form: Flange
• Structure: Lift Type
• Pressure: Ordinary Temperature
• Sealing Form: Gland Packings Globe Valve
• Flow Direction: Unidirection
• Standard: ANSI
• Application: Industrial Usage, Water Industrial Usage, Household Usage
• Color: Custom
• Name: Lift Non Return Swing Check Valve with Flanged End
• Transport Package: Plywooden Case
• Specification: 1" - 48"
• Trademark: Fly
• Origin: Zhejiang Province, China
• HS Code: 8481804090
• Production Capacity: 50000tons

Product Description

Lift Non Return Swing Check Valve With Flanged End
Introduction

• A piston check valves are similar to lift check valves. the only difference is that piston check valves has a dashpot consisting of piston and cylinder that provides cushioning effect during operations.
• The dashpot produces a damping effect during operation, thereby eliminating the damage caused by the frequent operation of the valve.
• The flow of fluid through piston check valve is similar as lift check valve.
• The construction of seat and disc for the piston check valve also same with the construction of lift check valve where the arrangement of seating is similar to a globe valve.
• Piston check valves do not require an operation. The closing of the disc depends on the back flow and gravity whereas; the opening of the disc depends on the upward flow.
• Piston check valve can be found in 1" to 12" size range with 150# to 900# class range.

Operation

• Flow to piston check valves must always enter below the seat.
• As the flow enters, the disc is raised within guides from the seat by the pressure of the upward flow.
• When the flow stops or reverses, the disc is forced onto the seat of the valve by both the backflow and gravity.

Class 150~600,
size: NPs 2~12″
Basic Design: AsME B16.34, Bs 1868
Face
to Face Dimensions: AsME B 16.10
End Flange Dimensions: AsME/ANsI
B16.5a
shell Wall Thickness: AsME B16.34
Pressure-Temperature Rating: AsME B16.34
Test: API 598

 

Bolted Cover, Lift Type Disc, Threaded seat Ring.

standard Material specifications

Part Name	WCB series	304 series	316 series	Cr-Mo(V) series	Low Temperature series	Resist sulphur	Monel Inside series
Body, Cover	A216 WCB	A352 LCB, CF3	A352 LCB, CF3M	A217 WC, WC9, C5	A352 LCB, LCC	A351 CF8M	A216 WCB
Disc	A105, A182 F6a	A182 F304, F304L	A182 F316, F316L	A182 F11 F22 F6a	A182 F6a	A182 F316	Monel k400
seat Ring	A105, A182 F6a	A182 F304, F304L	A182 F316, F316L	A182 F11 F22	A182 F6a	A182 F316	Monel k400
seal Face	13%Cr 13%Cr sTL / 13%Cr stainless steel valve local body / sTL sTL / sTL						Monel k400
Gasket	304 or 316 stainless steel twisted flexible graphite						Monel+Twisted flexible graphite
stud	A193 B7	A193 B8	A193 B8	A193 B16	A320 L7	A193 B7	A193 B7
Nut	A194 2H	A194 8	A194 8	A194 7	A194 4	A197 2H	A194 2H
Ring	A105	A182 F6a	A182 F6a	A182 F6a	A182 F6a	A182 F6a	A105

Note: Other material can be selected according to the customer's requirement.
Dimensions (mm)And Weights (kg)

Class	NPs	in	2	2-1/2	3	4	5	6	8	10	12
	DN	mm	50	65	80	100	125	150	200	250	300
150	L(RF)	in	8	8-1/2	9-1/2	11-1/2	14	16	19-1/2	24-1/2	27-1/2
		mm	203	216	241	292	356	406	495	622	698
	H	in	7-1/16	7-5/8	8-7/16	9-3/8	10-1/4	11-7/16	13-1/2	15-5/16	17-1/4
		mm	179	194	214	238	260	291	343	389	438
	WT	kg	17	25	29	48	68	85	138	210	350

Class	NPs	in	2	2-1/2	3	4	5	6	8	10	12
	DN	mm	50	65	80	100	125	150	200	250	300
300	L(RF)	in	10-1/2	11-1/2	12-1/2	14	15-3/4	17-1/2	22	24-1/2	28
		mm	267	292	318	356	400	445	559	622	711
	H	in	7-13/16	8-5/8	9-5/8	10-13/16	11-3/4	12-7/8	15	17	19-1/2
		mm	198	219	244	275	298	327	381	432	495
	WT	kg	28	33	42	67	98	135	203	296	448

Class	NPs	in	2	2-1/2	3	4	5	6	8	10	12
	DN	mm	50	65	80	100	125	150	200	250	300
600	L(RF)	in	11-1/2	13	14	17	20	22	26	31	33
		mm	292	330	356	432	508	559	660	787	838
	L1(RJ)	in	11-5/8	13-1/8	14-1/8	17-1/8	20-1/8	22-1/8	26-1/8	31-1/8	33-1/8
		mm	295	333	359	435	511	562	664	791	841
	L2(BW)	in	11-1/2	13	14	17	20	22	23	28	32
		mm	292	330	356	432	508	559	584	711	813
	H	in	8-7/16	9-1/4	10-5/16	11-13/16	13	14-1/2	16-9/16	19	20-7/8
		mm	214	235	262	300	330	368	421	483	530
	WT(Kg)	RF	32	45	58	102	147	195	308	455	630
		BW	27	38	47	79	104	148	211	305	470