Lift Check Valve Manufacturers Forged Steel Stainless Steel API 602 ANSI China Factory Supply

Lift Check Valve

Lift check valve is a type of valve that controls one-way flow by lifting and lowering the valve disc along the vertical centerline. Its valve disc relies on the thrust of the medium to open, and quickly closes due to its own weight and medium reflux pressure, effectively preventing backflow. It is suitable for high-pressure, small-diameter pipeline systems and has the characteristics of compact structure, good sealing, and easy maintenance.

Get a quote

Unique advantages compared to other check valves
Easy installation and low maintenance cost
Material adaptation and wide applicability
Low flow resistance and high pressure adaptability
Efficient sealing and anti backflow capability
Compact structure and high reliability

Unique advantages compared to other check valves

Unique advantages compared to other check valves
01
The sealing performance is better than that of the swing type: the metal sealing pair is wear-resistant, and the long-term sealing stability is higher than that of the swing type (the latter is prone to leakage due to valve disc displacement).
02
Superior in high-pressure scenarios: Compared to butterfly check valves, lift type valves have more outstanding sealing and reliability under high-pressure small-diameter conditions.

Easy installation and low maintenance cost

Easy installation and low maintenance cost
01
Supports horizontal or vertical pipeline installation (vertical only for vertical pipelines), without the need for additional support structures, suitable for complex spatial scenes.
02
Modular design allows for online replacement of valve discs or seals, with short maintenance downtime and standardized parts to reduce spare parts costs.

Material adaptation and wide applicability

Material adaptation and wide applicability
01
The valve body can be made of cast steel, stainless steel, brass and other materials, with rubber lining treatment to enhance corrosion resistance and adapt to water, steam, oil and corrosive liquids (such as acid and alkali media).
02
The working temperature range covers -29 ℃ to 550 ℃, meeting the requirements of high or low temperature environments such as chemical, power, HVAC, etc.

Low flow resistance and high pressure adaptability

Low flow resistance and high pressure adaptability
01
Optimization of flow channel design, with low resistance to the medium when the valve disc is fully opened, suitable for high-pressure small caliber scenarios (such as DN ≤ 300), and can support a maximum working pressure of 42MPa.
02
Spherical valve disc design (under high-pressure conditions) reduces turbulence and energy loss.

Efficient sealing and anti backflow capability

Efficient sealing and anti backflow capability
01
The valve disc relies on its own weight and medium pressure to quickly close, and the sealing surface is made of metal hard seal or elastic material (such as PTFE), with a leakage level of ANSI VI, effectively preventing medium backflow.
02
The response time is short (within 0.5 seconds), which can suppress the water hammer effect and reduce the impact pressure of the pipeline system.

Compact structure and high reliability

Compact structure and high reliability
01
Adopting a straight through or vertical valve body, the valve disc slides up and down along the vertical centerline, with a simple and compact structure, long maintenance cycle, and high operational stability.
02
The valve body is compatible with the globe valve, and the guide shaft and sleeve cooperate to ensure precise movement of the valve disc and reduce the risk of jamming.

Main Component Materials

Part Name	Material
Part Name	GB	ASTM
valve body	WCB、WC1、WC6、WC9、C5 CF8、CF8M、CF8C、CF3、CF3M	WCB、WC1、WC6、WC9、C5 CF8、CF8M、CF8C、CF3、CF3M
valve disc	WCB、WC1、WC6、WC9、C5、 CF8、CF8M、CF8C、CF3、CF3M	WCB、WC1、WC6、WC9、C5 CF8、CF8M、CF8C、CF3、CF3M
double-ended stud	35CrMoA、25Cr2MoV、 0Cr18Ni9、0Cr17Ni12Mo2	A193-B7、A320-B8、A193-B8M
hex nut	45、35CrMoA、25Cr2MoV、 0Cr18Ni9、0Cr17Ni12Mo2	A194-2H、A194-8、A194-8M
shim	Flexible graphite+stainless steel	Flexible graphite+stainless steel
valve cover	25、1Cr18Ni9Ti、0Cr18Ni12Mo2Ti 20Cr1Mo1V、25Cr2MoV	A105、F11、F22、F5、F9 F304、F316、F321、F304L、F316L

Performance Specifications & Dimensions

Nominal Pressure PN

1.6/2.5/4.0/6.4/10.0/16.0
Shell F

Px1.5
Sealing Pressure

Px1.1
Medium

Water, steam, oil, acidic media
Temperature (℃)

≤425℃

Nominal Diameter DN(mm)	L	D	D1	D2	D6	b	N-Φd	reference value
	L	D	D1	D2	D6	b	N-Φd	H
	PN1.6MPa
15	130	95	65	45	-	14	4-14	90/77
20	150	105	75	55	-	14	4-14	95/77
25	160	115	85	65	-	14	4-14	100/80
32	180	135	100	78	-	16	4-18	105/85
48	200	145	110	85	-	16	4-18	110/95
52	230	160	125	100	-	16	4-18	115/105
65	290	180	145	120	-	18	4-18	140/120
80	310	195	160	135	-	20	8-18	170/130
100	350	215	180	155	-	20	8-18	200/140
125	400	245	210	185	-	22	8-18	230/155
150	480	280	240	210	-	24	8-23	255/180
200	600	335	295	265	-	26	12-23	285/215
250	650	405	355	320	-	30	12-25	290/260
300	750	460	410	375	-	30	12-25	300/315
400	1100	580	525	485	-	36	16-30	-
500	1250	705	650	608	-	44	20-34	-

Note: The pressure range is 1.6MPa~16.0MPa. The above data is for reference only. Please consult the company's sales department for details.

Valve Application

Oil & Gas Transportation

Oil and gas transportation involves multiple modes such as pipelines and ships, and is the core link of the energy supply chain.
Chemical Raw Material Control

The control of chemical raw materials covers the entire process of mining, storage, and production, ensuring safety and process stability.
High Temperature SteamPipeline in Power System

High temperature steam pipelines are the core of energy transmission in power systems, supporting the efficient operation of thermal and nuclear power plants.
Other Industries

Valves control fluids in multiple industries such as new energy and electronics, ensuring safe and efficient production.