Piston-Lift Type Check Valve

Model schedule illustration

●Feature code: Bolt-jointed bonnet structure omitted Ps-Pressure sealed structure

●Valve type code: H-Check valve

●Connecting type code: 1-Interior whorl 2-Other whorl 4-Flange 6-Welding 7-To inserting 8-Bear and insert welding

●Design feature code:1-Lifting type 2-Lifting vertical type 4-Single-disc swing type 6--Dual-disc swing type

●Sealing formation code: Y—Hard alloy H—Alloy steel X-Rubber F-Polytetrafluoroethylene (PTFE)

●Pressure grade code: The 10 times of the nominal pressure MPa, pound grade io practical number

●Body material code: (1)Cast the valve body: C-WCB I-WC6、ZG1Cr5Mo V-WC9、ZG20CrMoV P-CF8、ZG1Cr18Ni9Ti

R-CF8M、ZG1Cr18Ni12Mo2Ti S-CF3 L-CF3M F-LCB N-LC3

(2)Forge thevalve body: C-A105 E-LF2 A-F11 V-F22 P-F304 R-F316 S-F304L L-F316L

Products design features

Check valves are used in pipes under pressures between PN1.6~16.0MPa (Class150~250oLb), working temperatures -196~ 60℃, They are used in industries include oil, chemistry, pharmaceutical, fertilizer, and power gene-ration to prevent the backward flux of the media.

The main structure features include:

1. The products feature a reasonable structure, reliable seal, good performance and nice modeling.

2. Either soft or hard seal can be selected for the product upon different working conditions.The sealing face is built up with Co-based carbide alloy, leaving a better wearability, corrosion and scrap resistance and a longer duration.

3. Smallopening pressure, the disc can be opened fully with a very small pressure differential.

4. Inside-set bolt-bearing structure reduces leakage and reliable use.

5. PN>16.0Mpa (class15oo), the middle cavity uses a self-tightening sealing structure to have the sealing performance reinforced along with the pressure rise so as to ensure the sealing performance.

6. Different parts materials and different sizes for flange, butt-welding are available for sensible combination according to different working facts and customers' requirements.

Main Parameter of the Products

Serial models	(Ps)H44H(Y)、(Ps)H64H(Y)、(Ps)H41H(Y)、(Ps)H61H(Y)、(Ps)H42H(Y)、(Ps)H62H(Y) (Ps)H74H(Y)、(Ps)H71H(Y)、(Ps)H76H(Y)、(Ps)H72H(Y)
Pressure grade range	PN1.6~42.0MPa (Class150~2500)
Drift diameter range	DN15~1000mm (1/2"~40")

Products Performance Specification

Pressure		Testing pressure at constant temperature (Mpa)		Applicable temperature	Applicable medium
Pressure		The shell testing	Sealand test	Applicable temperature	Applicable medium
(MPa) Nominal rating pressure (PN)	1.6	2.4	1.76	-196~600℃	Water,oil,steam,etc.
	2.5	3.75	2.75
	4.0	6.0	4.4
	6.4	9.6	7.04
	10.0	15.0	11.0
	16.0	24.0	17.6
	25.0	37.5	27.5
(Lb) Pound grade (Class)	150	3.0	2.2
	300	7.5	5.5
	600	15.0	11.0
	900	22.5	16.5
	1500	37.5	27.5
	2500	63.0	46.2

Technical specification

Structural formation	Spiral shell's post bonnet lifting type check valve
Design reference	GB	API
Design standard	GB/T 12235	BS1868
Face to face	GB/T 12221	ASME B16.10
Flanged ends	JB/T 79	ASME B16.5
Test & inspection	JB/T 9092	API 598

Notes: The sizes of valve connecting flange and butt-welding terminas can be designed according to customer's requirement.

Major parts material form

No.	Part name	Material
No.	Part name	ASTM	GB
1	Body	WCB、WC1、WC6、WC9、C5 CF8、CF8M、CF8C、CF3、CF3M	WCB、WC1、WC6、WC9、C5 CF8、CF8M、CF8C、CF3、CF3M
2	Disc	WCB、WC1、WC6、WC9、C5 CF8、CF8M、CF8C、CF3、CF3M	WCB、WC1、WC6、WC9、C5 CF8、CF8M、CF8C、CF3、CF3M
3	Stud	A193-B7、A320-B8、A193-B8M	35CrMoA、25Cr2MoV、0Cr18Ni9、0Cr17Ni12Mo2
4	Six angle nuts	A194-2H、A194-8、A194-8M	45、35CrMoA、25Cr2MoV、0Cr18Ni9、0Cr17Ni12Mo2
5	Gasket	Graphite & stainless steel	Graphite & stainless steel
6	Bonnet	A105、F11、F22、F5、F9 F304、F316、F321、F304L、F316L	25、1Cr18Ni9Ti、0Cr18Ni12Mo2Ti 20Cr1Mo1V、25Cr2MoV

Main size of outside & weight

Model: H41H、H41Y

PN (MPa)	DN (mm)	Dimensions (mm)		Weight (kg)
PN (MPa)	DN (mm)	L	H	Weight (kg)
1.6	50	230	115	20
	65	290	140	24
	80	310	175	30
	100	350	203	42
	125	400	228	59
	150	480	250	84
	200	600	285	100
2.5	50	230	115	21
	65	290	140	25
	80	310	175	31
	100	350	203	42
	125	400	228	60
	150	480	250	86
	200	600	285	102
4.0	50	230	150	17
	65	290	160	22
	80	310	178	34
	100	350	203	42
	125	400	228	75
	150	480	265	105
	200	600	317	150
6.4	50	300	175	30
	65	340	190	36
	80	380	208	48
	100	430	230	70
	125	500	265	102
	150	550	312	145
	200	650	353	198
10.0	50	300	175	30
	65	340	193	43
	80	380	238	65
	100	430	269	89
	125	500	313	102
	150	550	355	123
	200	650	403	148
16.0	50	300	175	32
	65	340	193	46
	80	380	238	240
	100	430	269	273

Main size of outside & weight

Model: H41H、H41Y

Class	PN (MPa)	NPS (in)	Dimensions (mm)		Weight (kg)
Class	PN (MPa)	NPS (in)	L	H	Weight (kg)
150	50	2	203	165	17
	65	2 ¹/₂	216	175	25
	80	3	241	190	29
	100	4	292	215	50
	150	6	356	265	85
	200	8	495	320	150
	250	10	622	365	240
	300	12	699	415	350
300	50	2	267	190	28
	65	2 ¹/₂	292	205	33
	80	3	318	220	45
	100	4	356	245	70
	150	6	445	295	150
	200	8	533	330	230
	250	10	622	420	390
	300	12	711	480	520
600	50	2	295	210	33
	65	2 ¹/₂	333	230	43
	80	3	359	255	62
	100	4	435	295	113
	150	6	562	365	222
	200	8	664	420	390
	250	10	791	505	630
	300	12	841	545	871
900	50	2	371	235	120
	65	2 ¹/₂	422	270	166
	80	3	384	302	176
	100	4	460	342	182
	150	6	613	425	403

Check Valve

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Piston-Lift Type Check Valve

Product Description

Model schedule illustration

Products design features

Main Parameter of the Products

Products Performance Specification

Technical specification

Major parts material form

Main size of outside & weight

Main size of outside & weight

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