Product classification of Kaiweixi

KAI WEI XI CHAN PIN FEN LEI

GLH41W Axial Flow Check Valve
More Lift Check Valve>>
More check valve>>
More valve>>

Phone：+86（577）6730 7899
Mobile：+86 189 6779 6135
Fax：+86（577）6738 7099
Email：Yannie@kaiweixi.com
Address：No. 1, Linxia Road, Sanqiao Industrial Zone, Oubei Street, Yongjia County, Zhejiang Province，china
Website：https://www.kaiweixi.com

Other valve products you may need

DRVZ Nozzle Check Valve
HC41X Muffler Check Valve
H12W Internal Thread Brass Lift Check Valve
H42W Vertical Check Valve
H71W Wafer Check Valve

GLH41W Axial Flow Check Valve

Model：GLH41W-150LB/GLH41W-300LB/GLH41W-600LB/GLH41W-900LB/GLH41W-1500LB/GLH41W-2500LB
Specification：2"-36"
Temperature：≤ 450 ℃
Medium：Water, Steam, Oil

Pressure：CL150 - 2500LB
Connection method：Flange
Driving method：automated
Material：Carbon Steel,Stainless Steel, DuplexSS,Monel, AL-Bronze

Consult now

Add QR code to serve you!

GLH41W Axial Flow Check ValveOverview

Overview

The axial flow check valve is an energy-saving check valve featuring a streamlined disc design that moves linearly along the pipeline axis for automatic opening and closing. It typically adopts a flanged or wafer connection. The valve body is mainly made of cast steel, stainless steel or ductile iron, with its internal disc performing axial reciprocating motion under the assistance of a flow guide and a spring. This valve can be installed either horizontally or vertically. When the medium flows in the forward direction, it pushes the disc to open along the axis, providing a completely straight-through flow path with extremely low pressure loss. When the medium stops or flows backward, the disc quickly returns to its closed position under spring force and reverse medium pressure, offering reliable sealing with minimal water hammer impact. It is specifically designed for piping systems requiring low flow resistance and high-frequency opening and closing. Widely used in long-distance pipelines, water injection systems, petrochemical plants, seawater desalination and similar projects, it serves as a key protective device ensuring efficient and stable system operation.

GLH41W Axial Flow Check Valve Product Image

GLH41W Axial Flow Check ValveCharacteristic

Features

Minimizes damage caused by water hammer in pipelines.

2.Eliminates flutter, reducing the likelihood of sudden valve failure in reciprocating compressor applications.

3.Protects critical equipment from costly damage caused by reverse flow.

4.Low pressure drop, energy-saving and environmentally friendly.

5.Utilizes the fast dynamic response of the axial flow check valve to reduce reverse flow velocity.

GLH41W Axial Flow Check Valvestructure principle

GLH41W Axial Flow Check Valve Structure Diagram

Parts Name Material List

序号NO.	部件名称Part name	材料Materials
1	阀体Body	Carbon Steel,Stainless Steel, DuplexSS,Monel, AL-Bronze
2	扩散器Diffuser
3	阀瓣Disc
4	轴套Bearing	Stainless Steel,Dulex SS,Monel, AL-Bronzel
5	弹簧Spring	SS316,InconelX-750, Inconel 718
6	阀座Seat	Mefal To Metal

GLH41W Axial Flow Check Valvetechnology parameter

性能规范表Performance Specification
公称压力Nominal Pressure	2-42(150LB-900LB)	Mpa
强度试验压力Shell Test	3-63
密封试验压力Seal Test	2.2-46.2
适用温度Suitable Temp.	≤450	℃

GLH41W Axial Flow Check Valvestandard size

Dimensions Standard Requirements

1. The structural length of the valve shall conform to the standard ASME16.10.

2. The connecting flange shall conform to the standard ASME16.50.

GLH41W Axial Flow Check Valve View Drawing

GLH41W Axial Flow Check Valve Dimensions Table

Pressure Rating ASME	Nominal Size NPS					End Connection Facing						API6D Standard Type													Weight Kg
												L(mm)
												RF								RTJ
CLASS150 PN20	2					RF						203								-					14
	3					RF						241								-					24
	4					RF						292								-					37
	6					RF						356								-					65
	8					RF						495								-					115
	10					RF						622								-					184
	12					RF						699								-					275
	14					RF						787								-					367
	16					RF						864								-					515
	18					RF						978								-					580
	20					RF						978								-					810
	24					RF						1295								-					1152
	30					RF						1524								-					2340
	36					RF						1956								-					3550
Pressure Rating ASME				Nominal Size NPS					End Connection Facing								API6D Standard Type							Weight Kg
																	L (mm)
																	RF						RTJ
CLASS300 PN50				2					RF								267						-	18
				3					RF								318						-	34
				4					RF								356						-	57
				6					RF								445						-	105
				8					RF								533						-	175
				10					RF								622						-	270
				12					RF								711						-	365
				14					RF								838						-	490
				16					RF								864						-	662
				18					RF								978						-	910
				20					RF								1016						-	1180
				24					RF								1346						-	1785
				30					RF								1594						-	2810
				36					RF								2083						-	4376
Pressure Rating ASME			Nominal Size NPS					End Connection Facing						API6D Standard Type													Weight Kg
														L(mm)
														RF					RTJ
CLASS600 PN110			2					RF/RJ-23						292					295								24
			3					RF/RJ-31						356					359								44
			4					RF/RJ-37						432					435								76
			6					RF/RJ-45						559					562								167
			8					RF/RJ-49						660					664								280
			10					RF/RJ-53						787					791								445
			12					RF/RJ-57						838					841								580
			14					RF/RJ-61						889					892								715
			16					RF/RJ-65						991					994								1060
			18					RF/RJ-69						1092					1095								1442
			20					RF/RJ-73						1194					1200								1840
			24					RF/RJ-77						1397					1407								2513
			30					RF/RJ-95						1651					1664								4564
			36					RF/RJ-98						2083					-								6360
Pressure Rating ASME		Nominal Size NPS					End Connection Facing						API6D Standard Type													Weight Kg
													L mm)
													RF					RTJ
CLASS900 PN150		2					RF/RJ-24						368					371								39
		3					RF/RJ-31						381					384								63
		4					RF/RJ-37						457					460								92
		6					RF/RJ-45						610					613								197
		8					RF/RJ-49						737					740								390
		10					RF/RJ-53						838					841								560
		12					RF/RJ-57						965					968								870
		14					RF/RJ-62						1029					1038								1104
		16					RF/RJ-66						1130					1140								1407
		18					RF/RJ-70						1219					1232								1960
		20					RF/RJ-74						1321					1334								2422
		24					RF/RJ-78						1549					1568								3661
Pressure Rating ASME					Nominal Size NPS						End Connection Facing					API6D Standard Type													Weight Kg
																L(mm)
																RF						RTJ
CLASS1500 PN260					2						RF/RJ-24					368						371							39
					3						RF/RJ-35					470						473							67
					4						RF/RJ-39					546						549							121
					6						RF/RJ-46					705						711							246
					8						RF/RJ-50					832						841							421
					10						RF/RJ-54					991						1000							730
					12						RF/RJ-58					1130						1146							1250
					14						RF/RJ-63					1257						1276							2114
					16						RF/RJ-67					1384						1407							3010
					18						RF/RJ-71					1537						1559							3922
					20						RF/RJ-75					1664						1686							5124
					24						RF/RJ-79					1943						1972							6962
Pressure Rating ASME					Nominal Size NPS					End Connection Facing					API6D Standard Type													Weight Kg
															L (mm)
															RF						RTJ
CLASS2500 PN420					2					RF/RJ-26					451						454							54
					3					RF/RJ-32					578						584							120
					4					RF/RJ-38					673						683							196
					6					RF/RJ-47					914						927							487
					8					RF/RJ-51					1022						1038							743
					10					RF/RJ-55					1270						1292							1173
					12					RF/RJ-60					1422						1445							1750

Articles related to technology research and development

Slow-closing wafer check valve patent

The utility model provides a slow-closing wafer check valve, which includes a valve body, a valve disc, a valve shaft, and a torsion spring sleeved on the valve shaft. The valve body is provided with a medium channel for medium circulation in the axial direction, which includes an inlet end and an outlet end. The valve disc, valve shaft, and torsion spring are symmetrically arranged in two groups relative to the center of the valve body. The utility model further includes a damping device located at the inlet end, which includes a cylinder inserted on the valve body, a piston rod located inside the cylinder, a spring, and a cover connected to the outer end of the cylinder. The cylinder is provided with a first cavity and a second cavity that are connected and communicated. The cross-section of the second cavity is square, and its cross-sectional area is larger than that of the first cavity. One end of the piston rod located inside the medium channel is provided with a movable block. The utility model has low noise and technical characteristics of quick opening, slow closing, and water hammer elimination, enabling light-load pump start-up and preventing the generation of water hammer during pump shutdown.
1. A slow-closing wafer check valve, comprising a valve body, a valve disc, a valve shaft, and a torsion spring sleeved on the valve shaft. The valve body is provided with a medium passage for medium circulation in the axial direction, and the medium passage includes an inlet end and an outlet end. The valve disc, valve shaft, and torsion spring are symmetrically arranged in two groups relative to the center of the valve body. The valve also comprises a damping device located at the inlet end. The damping device includes a cylinder inserted on the valve body, a piston rod located inside the cylinder, a spring, and a cover connected to the outer end of the cylinder. The cylinder is provided with a first cavity and a second cavity that are connected and communicated. The cross-section of the second cavity is square, and the cross-sectional area of the second cavity is larger than that of the first cavity. One end of the piston rod is located inside the second cavity, and the other end penetrates through the first cavity and is located inside the medium passage. The end of the piston rod located inside the medium passage is provided with a movable block, and the end of the piston rod located inside the second cavity is provided with an external thread. The second cavity is provided with a limit plate that is adapted to and threadedly connected with the piston rod. The spring is sleeved on the piston rod, with one end abutting against the limit plate and the other end abutting against the inner wall of the second cavity. The side of the valve disc facing the piston rod is provided with a driving block that cooperates with the movable block. During the closing process of the valve disc, the side of the driving block facing the center of the valve body cooperates with the movable block to achieve displacement of the piston rod relative to the cylinder towards the center of the valve body. The damping device is symmetrically arranged in two groups relative to the center of the valve body.
2. A slow-closing wafer check valve according to claim 1, characterized in that a square hole is axially provided at the end of the piston rod located in the second cavity, an adjuster is inserted at a position on the cover corresponding to the square hole, a driving rod adapted to the square hole is provided at the end of the adjuster, and the adjuster is rotatable relative to the cover.
3. A slow-closing wafer check valve according to claim 2, characterized in that a limit slot is provided at the connection between the cover and the regulator, and a limit mechanism is arranged inside the limit slot. The limit mechanism comprises a ball, a tower spring connected to the ball, and a positioning column for fixing the tower spring. At least four engaging slots adapted to the ball are provided circumferentially at the connection between the regulator and the cover.
4. A slow-closing wafer check valve according to claim 3, characterized in that the top edge of the engaging groove is provided with a rounded corner.
5. A slow-closing wafer check valve according to claim 1, characterized in that the valve body is provided with a stepped groove adapted to the cylinder body.
6. A slow-closing wafer check valve according to claim 5, characterized in that a sealing ring is sleeved at the connection between the cylinder and the valve body.
7. A slow-closing wafer check valve according to claim 1, characterized in that the valve disc is provided with a build-up welding layer that is sealed with the valve body. 8. A slow-closing wafer check valve according to claim 7, characterized in that one side of the build-up welding layer is provided with vulcanized rubber that is sealed with the valve body.

View more>>

Product classification of Kaiweixi

KAI WEI XI CHAN PIN FEN LEI

GLH41W Axial Flow Check Valve

More Lift Check Valve>>

More check valve>>

More valve>>

GLH41W Axial Flow Check Valve