What is a hand valve and its functions?

A hand valve is a manually operated device used to control the flow of fluid (liquids or gases) in a system. It consists of a handle or lever that, when turned, adjusts the position of an internal mechanism to either open or close the valve. Hand valves serve to regulate fluid flow, isolate sections of a pipeline for maintenance, and control pressure. They find application in various industries such as plumbing and industrial processes.

When should you use the hand valve?

Use a hand valve when manual control of fluid flow is necessary. It's employed to start, stop, or adjust flow rates in systems requiring human intervention, such as emergencies, maintenance, or precise adjustments. Hand valves are useful when automation isn't feasible, during equipment servicing, or when immediate response to changes is needed. They offer a simple and reliable means of flow regulation in various industries.

What are the advantages and disadvatages of hand valves / manual valves?

Advantages of hand valves (manual valves) include simplicity, reliability, and cost-effectiveness. They offer precise control and immediate response during emergencies or maintenance, making them suitable for small-scale applications. However, they can be slower to operate compared to automated valves, require physical presence for adjustments, and might not be suitable for large-scale or continuous processes. Additionally, potential human error in operation and limited remote control are notable disadvantages.

What are the common materials used for valves?

Hand valves are commonly constructed from materials such as brass, stainless steel, cast iron, bronze, and plastic (such as PVC or CPVC). The choice of material depends on factors like the type of fluid being handled, pressure requirements, temperature conditions, and corrosion resistance. These materials ensure durability and compatibility with various applications across industries like plumbing, industrial processes, and water treatment.

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SMC Hand Valves（Pipe Port Type：One-Touch Plumbing）

SMC offers products Hand Valves specified by Pipe Port Type One-Touch Plumbing from Automation Components product category. There are a total of 3 items. Search and select detailed specifications of parts for your machine with free CAD downloads. SMC products are available to order through MISUMI online 24 hours a day. Free shipping, no minimum order.

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Specification/Dimensions

Connecting Tube Diameter
- Ø4
- Ø6
- Ø8
- Ø10
- Ø12
- 1/4
- 5/16
- 3/8
- 1/2
Clear

Number of Ports
- 2-Port
- 3-Port
- 4-Port
Clear

Switching Operation
- Manual Lever
- Knob
- Selecting Knob
- Others
Clear

Effective Sectional Area(mm²)
1.48

1.84

2.5

2.58

3.4

3.5

3.8

3.87

4

5.0

5.35

5.5

6.0

6.46

6.64

7.0

7.2

7.5

7.7

8

8.1

8.2

8.3

8.4

8.5

8.6

8.67

8.7

8.8

8.9

9

9.5

10.15

10.3

10.5

11

11.5

11.99

12

12.18

12.5

12.55

12.92

13

13.10

14.39

15.4

15.6

15.68

15.7

15.8

16

16.1

16.2

16.3

16.5

16.6

16.8

16.9

17

17.1

17.4

17.5

18

18.1

18.5

20.30

20.5

22

22.99

23

23.06

23.98

24

24.5

26

27.67

30

33

34.5

35.5

36

38.19

39

39.5

40

41

44

45.5

46

47

49

51.5

53.50

54

55

55.5

57.20

62.11

62.73

64.58

68.26

70.11

79.34

83.02

88

95

101.41

114

118

140

258.30

276.75
Clear

Main Body Shape
- Block Horizontal Type
- One-Touch Fitting Type
- Pin Shape
- Others
Clear

Pipe Port Type
- M
- Rc (R)
- NPT
- G
- One-Touch Plumbing
- Others
Clear

Number of Switching Positions
- 2-Position Normally Open
- 2-Position Normally Closed
- 2-Position Exhaust
- 3-Position Closed Center
- 3-Position Exhaust Center
- 2-Position Direction Switching
- Others
Clear

Plumbing Thread Nominal
- M5
- 1/8
- 1/4
- 3/8
- 1/2
- 3/4
- 1
Clear

Plumbing Type and Direction
- Direct Side Surface
- Direct Bottom Surface
- Others
Clear

Effective Sectional Area【classification】(mm2)
5 or Less

~10

~15

~20

~30

~40

~50

~60

~70

~80

~90

~100

~200
* ~10 represents over 5, and 10 or less.
Clear

How to Mount
- Side
- Bottom
- Panel Mounting
- Others
Clear

Brand	(12) (2) AIRTAC (1) CHELIC (0) CHIYODA (0) EASUN (1) ESCO (1) FESTO (0) KOGANEI (1) NITTA (1) PISCO (15) SMC (3)
Filter By	All Sale Items
CAD	2D 3D

3 items

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: 30; 60; 90

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Finger Valve, VHK-A Series

SMC

[Features]
・ The opening and closing of the valve is easily displayed by the direction of the knob
・ Small knob operation force (0.04 to 0.14 N・m)
・ With handle removal prevention function
・ Large effective cross-section precision 2.0 to 17.5 mm2
・ Poppet valve structure with few seal defects
・ Series from tube outer diameter ø4
・ 4 types can be selected according to the piping specifications
・ The 3-port valve exhausts the residual pressure on the 2 (A) side with SHUT (There is no exhaust port)

From: ฿ 311.10
Days to Ship: Same day

Same day

Compare

Until 31/03/2025

Finger Valve VHK Series

SMC

Finger Valve VHK Series that makes it easy to distinguish between 2-port valves and 3-port valves by the color of the knobs.
[Features]
· Poppet valve construction that rarely suffers from seal defects.
· The direction of the knob clearly indicates whether the valve is open or closed.

From: ฿ 311.10
Special Price
Days to Ship: Same day

Same day

Compare

Finger Valve, Rechargeable Battery Compatible, 25A-VHK Series

SMC

[Rechargeable battery compatible series]
Copper (Cu) and zinc (Zn) materials are not used in the rechargeable battery manufacturing process to reduce product defects.
Some aluminum alloys and die-cast aluminum materials contain small amounts of copper (Cu) and zinc (Zn) as additive elements.
Electrolytic nickel plating and zinc plating with copper base are not used. (Electroless nickel plating is used.)
It uses low dew point compatible grease, -70°C compatible, improved performance in low dew point environment.

From: ฿ 48.00
Days to Ship: 55 Day(s)

55 Day(s)


Brand
Product Series
CAD
From
Days to Ship
Connecting Tube Diameter
Number of Ports
Switching Operation
Effective Sectional Area(mm²)
Main Body Shape
Pipe Port Type
Number of Switching Positions
Plumbing Thread Nominal
Plumbing Type and Direction
Effective Sectional Area【classification】(mm2)
How to Mount

	You can add up to 6 items per a category to the compare list.Compare	You can add up to 6 items per a category to the compare list.Compare Until 31/03/2025	You can add up to 6 items per a category to the compare list.Compare
Brand	SMC	SMC	SMC
Product Series	Finger Valve, VHK-A Series	Finger Valve VHK Series	Finger Valve, Rechargeable Battery Compatible, 25A-VHK Series
CAD		2D / 3D
From	฿ 311.10	฿ 311.10 Special Price On Sale Until 31/03/2025	฿ 48.00
Days to Ship	Same day	Same day	55 Day(s)
Connecting Tube Diameter	Ø4 / Ø6 / Ø8 / Ø10 / Ø12	Ø4 / Ø6 / Ø8 / Ø10 / Ø12	Ø6
Number of Ports	2-Port / 3-Port	2-Port / 3-Port	2-Port / 3-Port
Switching Operation	Manual Lever	Knob	Knob
Effective Sectional Area(mm²)	2.58 ～ 12.92	1.48 ～ 12.92	6.46
Main Body Shape	One-Touch Fitting Type	One-Touch Fitting Type	One-Touch Fitting Type
Pipe Port Type	One-Touch Plumbing	One-Touch Plumbing	One-Touch Plumbing
Number of Switching Positions	2-Position Normally Closed / 2-Position Exhaust	2-Position Normally Closed	2-Position Normally Closed
Plumbing Thread Nominal	-	-	-
Plumbing Type and Direction	Direct Side Surface	Direct Side Surface	Direct Side Surface
Effective Sectional Area【classification】(mm2)	5 or Less ～ ~15	5 or Less ～ ~15	~10
How to Mount	Side / Bottom	Side / Bottom	Side

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FAQ Hand Valves

Question: What is a hand valve and its functions?: Answer: A hand valve is a manually operated device used to control the flow of fluid (liquids or gases) in a system. It consists of a handle or lever that, when turned, adjusts the position of an internal mechanism to either open or close the valve. Hand valves serve to regulate fluid flow, isolate sections of a pipeline for maintenance, and control pressure. They find application in various industries such as plumbing and industrial processes.
Question: When should you use the hand valve?: Answer: Use a hand valve when manual control of fluid flow is necessary. It's employed to start, stop, or adjust flow rates in systems requiring human intervention, such as emergencies, maintenance, or precise adjustments. Hand valves are useful when automation isn't feasible, during equipment servicing, or when immediate response to changes is needed. They offer a simple and reliable means of flow regulation in various industries.
Question: What are the advantages and disadvatages of hand valves / manual valves?: Answer: Advantages of hand valves (manual valves) include simplicity, reliability, and cost-effectiveness. They offer precise control and immediate response during emergencies or maintenance, making them suitable for small-scale applications. However, they can be slower to operate compared to automated valves, require physical presence for adjustments, and might not be suitable for large-scale or continuous processes. Additionally, potential human error in operation and limited remote control are notable disadvantages.
Question: What are the common materials used for valves?: Answer: Hand valves are commonly constructed from materials such as brass, stainless steel, cast iron, bronze, and plastic (such as PVC or CPVC). The choice of material depends on factors like the type of fluid being handled, pressure requirements, temperature conditions, and corrosion resistance. These materials ensure durability and compatibility with various applications across industries like plumbing, industrial processes, and water treatment.