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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PISCO Hand Valves（Connecting Tube Diameter：1/4）

PISCO offers products Hand Valves specified by Connecting Tube Diameter 1/4 from Automation Components product category. There are a total of 4 items. Search and select detailed specifications of parts for your machine with free CAD downloads. PISCO 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	(0) (0) AIRTAC (0) CHELIC (0) CHIYODA (0) EASUN (0) ESCO (0) FESTO (0) KOGANEI (0) NITTA (3) PISCO (4) SMC (0)
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CAD	2D 3D

4 items

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: 30; 60; 90

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Shut-off Valve Hand Valve Union Straight

Until 31/03/2025

Shut-off Valve Hand Valve Union Straight

PISCO

[Features]
· Opening and closing air pressure inlet to equipment
· 3-way and 2-way type valves available
· The 3-way type releases residual pressure from the outlet side when it is closed
· Select the most appropriate type from the 4 types available

From: ฿ 363.15
Special Price
Days to Ship: Same day

Same day

Compare

Until 31/03/2025

Shut-off Valve, Hand Valve, Straight B

PISCO

[Features]
·Capable of opening and closing air pressure inlet to equipment
·3-direction valve type and 2-direction valve type are available
·The 3-direction valve type exhausts the residual pressure on the output side when closed
·Selectable from 4 types according to applications

From: ฿ 387.25
Special Price
Days to Ship: Same day

Same day

Compare

Until 31/03/2025

Shut-off Valve, Hand Valve Straight A

PISCO

From: ฿ 387.25
Special Price
Days to Ship: 9 Day(s)

9 Day(s)

Compare

Flow Path Switching Valve, Change Valve, Union Fitting

Until 31/03/2025

Flow Path Switching Valve, Change Valve, Union Fitting

PISCO

[Features]
· 90° air-flow path switching.
· Lightweight and compact design.
· Excellent operability with a function that allows the easy switching of the air-flow path.

From: ฿ 678.43
Special Price
Days to Ship: 10 Day(s)

10 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 Until 31/03/2025	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 Until 31/03/2025	You can add up to 6 items per a category to the compare list.Compare Until 31/03/2025
Brand	PISCO	PISCO	PISCO	PISCO
Product Series	Shut-off Valve Hand Valve Union Straight	Shut-off Valve, Hand Valve, Straight B	Shut-off Valve, Hand Valve Straight A	Flow Path Switching Valve, Change Valve, Union Fitting
CAD	2D	2D / 3D	2D / 3D	2D
From	฿ 363.15 Special Price On Sale Until 31/03/2025	฿ 387.25 Special Price On Sale Until 31/03/2025	฿ 387.25 Special Price On Sale Until 31/03/2025	฿ 678.43 Special Price On Sale Until 31/03/2025
Days to Ship	Same day	Same day	9 Day(s)	10 Day(s)
Connecting Tube Diameter	1/4	1/4	1/4	1/4
Number of Ports	2-Port / 3-Port	2-Port / 3-Port	2-Port / 3-Port	3-Port
Switching Operation	Knob	Knob	Knob	Knob
Effective Sectional Area(mm²)	8.1	8.4 ～ 8.7	8 ～ 8.2	9
Main Body Shape	One-Touch Fitting Type	One-Touch Fitting Type	One-Touch Fitting Type	One-Touch Fitting Type
Pipe Port Type	One-Touch Plumbing	Rc (R)	One-Touch Plumbing	One-Touch Plumbing
Number of Switching Positions	2-Position Normally Closed	2-Position Normally Closed	2-Position Normally Closed	2-Position Direction Switching
Plumbing Thread Nominal	-	1/8 / 1/4 / 3/8	1/8 / 1/4 / 3/8	-
Plumbing Type and Direction	-	-	-	-
Effective Sectional Area【classification】(mm2)	~10	~10	~10	~10
How to Mount	Side	Side	Side	Bottom

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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.