Rotameter

Q: What is the use of 2W series solenoid valve?

Used to control fluid on-off and other operations.

Q: How to install 2W series solenoid valve?

Install and wire at appropriate location according to instructions.

Q: How to use 2W solenoid valve correctly?

The flow of electricity is controlled according to the process.

Q: What is the cause of the 2W solenoid valve failure?

The coil is damaged or the valve core is blocked, etc.

Rotameter

Rotameter measures fluid flow based on the throttling principle. It changes the flow area of the fluid to keep the differential pressure above and below the rotor constant, so it is also called a variable flow area constant differential pressure flow meter, also known as a float flow meter.

Product Details

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Product Details

Main Features

It has the characteristics of simple structure, intuitive, small pressure loss, and easy maintenance. The Rotameter is suitable for measuring small flows through pipes with a diameter of D<150mm, and can also measure the flow of corrosive media.

Main Specifications

• Working Pressure:≤ 0.6MPa
• Operating Temperature:0~60℃
• Accuracy:±4%
• Body Material: Acrylic
• Fitting Material :ABS or SS
• Float Material: SS
• O-ring Material: Silicon rubber
• The fixed screw of center distance F is M6×11.
• Customized specifications are available
• When the flow meter is equipped with external threads, the total length is A, When the flow meter is equipped with internal threads, the total length is B.

Installation Method

RotaMeter has a simple structure and is generally installed vertically on a panel or a vertical pipe section. It is suitable for measuring the flow of low-velocity and low-flow media, but cannot measure media with more impurities. The fluid medium passes through the rotor flow meter from bottom to top.

1.Panel mounted Rotameter:

The LZM series Panel Rotameter is generally installed on the control panel, with both the inlet and outlet located at the back. Therefore, before installation, the inlet and outlet connection ports and the instrument fixing screw holes need to be in an open state.

1.1 Material:

Body

Fitting

Adjust Valve

O-ring

√ Acrylic

√ 1 .ABS 4. PA

2. PP 5. Brass（chrome plate）

3. PVC 6. SS

√ 1.SS

1. Acrylic

2. PTFE

√ 1.Silicon rubber

2.Fluororubber

3.EPDM

Note:

Mark with √, the material of the Flow Meter is the General Configuration.

1.2 Technical Parameters:

Model	Range		Nm³/h(Gas)	Screw Thread	Accuracy	Size(mm)
Model	GPM(Liquid) (Gallon/Min)	LPM(Liquid) (L/Min)	Nm³/h(Gas)	Screw Thread	Accuracy	A	B	C	D	E	F	G	Hole size
LZM-15	0.05~0.5 0.1~1 0.2~2 0.3~3 0.5~5	0.2~2 0.5~4 1~7 1~11 2~18 10~100LPH 16~160LPH 25~250LPH	0.1~1 0.2~2 0.5~3 0.6~6 1.2~12 1.6~16 2.5~25 1~10	(Male) 1/2"BSPT (Female) 1/4"BSPT	±4%	176	32	168	35	19	76	127	26
LZM-25	1~10 2~15 2~20 3~30 5~35 5~40	5~40 10~50 10~70 10~110 20~140 10~150	6~60m³/h 16~160m³m/h 25~250Nm³/h	(Male) 1"BSPT		234	45	226	46	27	100	160	38
LZM-50	5~45 10~50 10~60 20~80 25~100 30~150	10~170 50~190 20~220 90~300 100~350 100~500		(Male) 2"BSPT		296	70	281	82.5	41	100	190	64

2.Pipeline Installation Rotameter:

The LZM-G Pipeline series Rotameter can be directly connected in a pipeline, with the inlet and outlet located at the upper and lower ends of the flow meter. The shape can be circular, square, or other polygonal forms (generally, the most commonly used is circular). The connection thread can be either external or internal, and the specifications and materials of the threads can be customized according to requirements.

Internal Thread

Appearance Diagram

External Thread

Appearance Diagram

2.1 Material:

Body

Fitting

Float

O-ring

√ 1. PC

2.PSU

3. AS

√ 1 .ABS 4. Brass

2. PP 5. Brass（chrome plate）

3. PVC 6. SS

√ 1.SS

√ 1.Silicon rubber

2.Fluororubber

3.EPDM

Note:

Mark with √, the material of the Flow Meter is the General Configuration.

2.2 Technical Parameters:

Model	Range		Nm³/h(Gas)	Screw Thread	Accuracy	Size(mm)
Model	GPM(Liquid) (Gallon/Min)	LPM(Liquid) (L/Min)	Nm³/h(Gas)	Screw Thread	Accuracy	A	B	C	D
LZM-15G	0.05~0.5 0.1~1 0.15~1.5 0.2~2 0.25~2.5 0.3~3 0.5~5	0.18~1.8 0.4~4 0.5~5.5 1~7 1~9 1~11 1.8~18	0.8~8 1~10 1.2~12 1.6~16 2.5~25 6~60LPM	(External) G1/2" 1/2"BSP (Internal) G1/2" 1/2"BSP	±4%	235	233	180	32
LZM-20G	1~10 1.5~15 2~20 3~30 5~35 4~40	4~40 5~55 10~70 10~110 20~140 15~150	4~40 6~60	(External) G1/¼" 1//¼"BSP (Internal) G3/4" 3/4"BSP		330	283	236	45
LZM-25G	1~10 2~20 3~30 5~35 4~40 5~50 6~60	4~40 10~70 10~110 20~140 15~150 25~190 30~225	15~140 16~160 25~250 40~400	(External) G1/½" 1//½"BSP (Internal) G1" 1"BSP		319	297	235	51
LZM-40G	4~40 6~60 20~80 15~100	15~150 22~220 30~300 50~400		(Internal) G1/½" 1/½"BSP		340	302	240	65
LZM-50G	20~80 20~100 20~120 40~150 60~200	100~300 100~350 100~450 150~550 150~750	100~500 100~600 300~900	(External) G2" 2"BSP (Internal) G2" 2"BSP		400	367	294	75

3. Rotameter Pictures:

4.Rotameter Application：

Due to various excellent performance and reliability,the Rotameters are widely used in chemical, pharmaceutical, paper making, water treatment, RO water purify equipment etc.

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FAQS

Frequently Asked Questions (FAQ) About Rotameter

What is the use of 2W series solenoid valve?

Used to control fluid on-off and other operations.

How to install 2W series solenoid valve?

Install and wire at appropriate location according to instructions.

How to use 2W solenoid valve correctly?

The flow of electricity is controlled according to the process.

What is the cause of the 2W solenoid valve failure?

The coil is damaged or the valve core is blocked, etc.

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