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factory supply more than plastic check valve specifications check valve laboratory check valve 厂家供应塑料单向阀多规格单向阀实验室用单向阀

EXW Price:

CN¥ 0.33 ~ CN¥ 1.97

Min. order: 1 piece

1 piece

Weight 0.343 kg/piece

specifications

Specifications

3mm check valve (small) 3mm止回阀（小款）	CN¥ 0.66
4mm check valve (small) 4mm止回阀（小款）	CN¥ 0.77
6mm check valve (small) 6mm止回阀（小款）	CN¥ 0.77
3mm (large) 3mm（大）	CN¥ 0.77
3.5mm	CN¥ 0.77
4mm (large) 4mm（大）	CN¥ 0.77
6mm (large) 6mm（大）	CN¥ 0.77
8mm single 8mm 单	CN¥ 0.87
10mm single 10mm 单	CN¥ 0.87
12mm single 12mm 单	CN¥ 0.87
4mm cylindrical duckbill 4mm圆柱鸭嘴	CN¥ 0.33
4mm blue 4mm蓝色	CN¥ 0.33
4mm cylindrical spring 4mm圆柱弹簧	CN¥ 0.55
4mm diaphragm 4mm隔膜	CN¥ 0.33
3mm cylindrical steel ball 3mm圆柱钢珠	CN¥ 0.87
4mm cylindrical steel ball 4mm圆柱钢珠	CN¥ 0.87
6mm cylindrical steel ball 6mm圆柱钢珠	CN¥ 0.87
4mm pressure type 4mm压力型	CN¥ 0.87
6mm pressure type 6mm压力型	CN¥ 0.87
8mm pressure type 8mm压力型	CN¥ 0.99
10mm pressure type 10mm压力型	CN¥ 1.09
8mm pressure (pp material) 8mm压力（PP材料）	CN¥ 0.77
12mm pressure type 12mm压力型	CN¥ 1.97
5mm delicate 5mm精致型	CN¥ 0.99
6mm delicate 6mm精致型	CN¥ 0.99
8mm delicate 8mm精致型	CN¥ 0.99
4mm one in and out 4mm一进一出	CN¥ 1.31
4mm two input and one output 4mm二进一出	CN¥ 1.97
4mm one-switch two-way 4mm 一进二出	CN¥ 1.97

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lufamaoyi 2yr.

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Description

brand: juya

valve standard: national standard

main downstream platforms: amazon, aliexpress

major sales areas: europe, china, others, south america, north america

whether cross-border export is exclusively available: yes

form: spring type

disc form: spring check

number of disc: single lobe structure

action form: check back type

drive mode: fluid action, steam, pneumatic, water pressure, air pump

structural form: unidirectional

mode of action: check back type

type (channel location): straight-through

function: reverse type

lining material: 304 stainless steel

sealing material: silicone

sealing method: soft seal

pressure environment: atmospheric pressure

temperature environment: room temperature

flow direction: one-way

Plastic unidirectional valve, PP unidirectional valve, check valve, stop valve

A one-way valve, also known as a check valve or reverse valve, is used in hydraulic systems to prevent oil from flowing in the opposite direction or in pneumatic systems to prevent compressed air from flowing in the reverse direction.

One-way valves come in two types: direct-flow and right-angle. Direct-flow one-way valves are connected by threads and installed on the pipeline. Right-angle one-way valves have three forms of connection: threaded, plate, and flange. Hydraulic one-way valves, also known as lock valves or pressure-maintaining valves, are similar to one-way valves and are used to prevent oil from flowing in the opposite direction. However, when it is necessary to reverse the flow of oil in the hydraulic circuit, the one-way valve can be opened by controlling the oil pressure, allowing the oil to flow in both directions. Hydraulic one-way valves use conical valve cores, which leads to good sealing performance. When it is required to close the oil path, this valve can be used as a one-way locking mechanism for the oil path to maintain pressure. The leakage mode of the hydraulic one-way valve's control oil is divided into internal leakage and external leakage. In oil paths without backpressure at the outlet for reverse flow, internal leakage can be used; otherwise, external leakage is needed to reduce the control oil pressure.

Update time：20260502114459