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Clean Air Module (Standard / High Flow Type), LLB Series (LLB3-2-RSF)

SMC

Modularized (reduces piping labor hours / saves space) to allow clean air to be obtained easily.
[Features]
· Filtration: 0.01 μm (filtration efficiency 99.99%).
· Fluid contact space: Grease-free, silicone-free.
· Available in 24 variations of combinations.
· Built-in single-action fittings.
· Can be fitted with pressure gauge / pressure switch (separate purchase).
· RoHS compliant.

(i)Caution

■ SMC Air Cylinder Product Selection and Technical Information
The featured products page can be found here.

■ SMC Product Line
Webpages for products currently without individual pages on this site will be released on an ad-hoc basis.
Click here for a quotation or to make an order if you have a model number.

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CQ2, MG types, etc., are already available. Click here to check.
*Vacuum equipment, FRLs, solenoid valves, etc., will also be released on dedicated pages on this site on an ad-hoc basis.
See catalog for specification details.
Product images may be representative images. Refer to the catalog for details.

Part Number

Configured Part Number is shown.

LLB3-2-RSF

Product Specifications
Part Numbers
Catalog

Clean Air Module, LLB Series Specifications

LLB3 external appearance

LLB4 external appearance

Clean Air Module Common Specifications

Model			LLB3	LLB4
Applicable Fluid			Clean Air, N₂gas (Inlet air conditions equivalent to ISO 8573-1 and quality class 1.4.1 to 1.6.1)^*3
Maximum Operating Pressure			0.7 MPa
Set Pressure			0.05 to 0.4 MPa
Withstand Pressure			1.0 MPa
Working Fluid Temperature			5℃ to 45°C (no freezing) *Guaranteed range of digital flow switch: 15 to 35°C.
Ambient Temperature
Flow Rate Range^*1			5 to 100 L/min (ANR)	50 to 500 L/min (ANR)
Filtration^*2			0.01 μm (filtration efficiency 99.99%)
Fluid Contact Space	-		Grease-free, silicone-free
	Material	Body	PBT
		Module Connection Packing	FKM
		Single-Action Fitting Packing	EPDM

*1: The maximum flow rate varies depending on set pressure. Refer to "Flow Rate Characteristics" graph for details.
*2: Measured under manufacturer's specified conditions.
*3: Refer to Operating Environment (catalog p. 344).

Digital Flow Switch Unit Specifications

Model			LLB3	LLB4
Detection Type			Heat type
Measured Flow Rate Range			5 to 100 L/min	50 to 500 L/min
Minimum Unit Setting			1 L/min	5 L/min
Accumulated Pulse Flow Rate Exchange Value (Pulse Width: 50 [ms])			1 L/pulse	5 L/pulse
Accumulated Flow Rate Range			0 to 999,999 L
Linearity			±5% F.S. or less (15 to 35°C, 25°C reference)
Repeatability			±2% F.S. or less
Temperature Characteristics			±5% F.S. or less (15 to 35°C, 25°C reference)
Specifications	Switch Output	-	NPN or PNP open collector output
		Maximum Load Current	80 mA
		Maximum Applied Voltage	30 V DC (at NPN output)
		Internal Voltage Drop	NPN output: 1 V or less (at 80 mA) PNP output: 1.5 V or less (at 80 mA)
	Analog Output	Voltage Output	Output voltage 1 to 5 V
		Voltage Output	Allowable load resistance 100 kΩ or more
		Current Output	Output current 4 to 20 mA
		Current Output	Allowable load resistance 300Ω or less (12 V DC), 600Ω or less (24 V DC)
Status LEDs			When turned ON, OUT1: Green, OUT2: Red (where output is analog, OUT1 only)
Response Time			1S or less
Power Supply Voltage			12 to 24 V DC (Ripple ±10% or less)
Current Consumption			160 mA or less	170 mA or less
Withstand Voltage			1,000 V AC, for 1 minute between external terminal and case
Insulation Resistance			50 MΩ or more (500 V DC measured with megohmmeter) between external terminal and case
Noise Resistance			1,000 V p-p, pulse width 1 μs, rise time 1 ns
Lead Wire			Lead wire with connector
Enclosure			IP65
Fluid Contact Space Material	Mesh		SUS
	Sensor Housing		PBT
	Sensor		Lead glass (RoHS-exempt material)
			Ptlr
			FeNl

ON/OFF Valve Unit Specifications

Model		LLB3	LLB4
Pilot Pressure (ON/OFF Valve Operating Pressure)		0.4 to 0.5 MPa
Back Pressure		0.4 MPa or less
Valve Type		N.C.
Orifice Diameter		4 mm	8 mm
Cv Factor		0.35	1.7
Fluid Contact Space Material	Diaphragm	PTFE
Valve Leakage		1 cm³/min (ANR) or less

Filter Unit Specifications

Model		LLB3	LLB4
Filtration^*1		0.01 μm (filtration efficiency 99.99%)
Element Proof Differential Pressure^*2		0.5 MPa
Processing Flow Rate		Up to 100 L/min (ANR)	Up to 500 L/min (ANR)
Fluid Contact Space Material	Filter Case	PC
	Hollow Fiber	PP
	Potting	PU

*1: Measured under manufacturer's specified conditions.
*2: This means that the element will not break at 0.5 MPa. Refer to installation precautions prior to use.

Pressure Reducing Valve Unit Specifications

Relief mechanism: LLB3, LLB4 / Non-relief
Fluid contact space material (Diaphragm): LLB3, LLB4 / FKM

Throttle Valve Unit Specifications

Cv factor: LLB3 / 0.28, LLB4 / 1.4
Number of needle rotations: LLB3 / 8 rotations, LLB4 / 10 rotations
Fluid contact space material (needle): LLB3, LLB4 / SUS

Product Outline Dimensional Drawing

(Unit: mm)

LLB3-1-P□R□V□SF dimensional drawing

*Cannot be used. If a pressure gauge, etc. is screwed in, there is risk of damage.

(Unit: mm)

LLB4-1-P□R□V□SF dimensional drawing

*Cannot be used. If a pressure gauge, etc. is screwed in, there is risk of damage.

Component Parts

LLB Series component parts

No.	Description		Note
1	Clean regulator ass’y	-	-
2	Pressure outlet port ass’y	-	-
3	ON/OFF valve ass’y / Air operated valve	Without flow adjuster	-
	ON/OFF valve ass’y / Air operated valve	With flow adjuster	-
	ON/OFF valve ass’y / Manual operation valve	-	-
4	Throttle valve ass’y	-	-
5	Digital flow switch ass’y	5 to 100 L/min	With L-type connector With lead wire (3 m)
5	Digital flow switch ass’y	50 to 500 L/min	With L-type connector With lead wire (3 m)
6	Clean air filter ass’y	øWith 10-mm diameter fitting	With single-action fitting
		Rc 1/4	Threaded type
		NPT 1/4	Threaded type
		øWith 10-mm diameter pipe fitting, with differential pressure gauge	With single-action fitting
		Rc 1/4, with differential pressure gauge	Threaded type
		NPT 1/4, with differential pressure gauge	Threaded type
		Replacement element	-
7	End plate ass’y	øWith 10-mm diameter fitting	With single-action fitting
		Rc 1/4	Threaded type
		NPT 1/4	Threaded type
		øWith 12-mm diameter fitting	With single-action fitting
		Rc 3/8	Threaded type
		NPT 3/8	Threaded type

*Each module comes with 2 connection fittings.

Product Flow Rate Characteristics

Standard type (100 L/min)

LLB3-1-P1R1VSF flow rate characteristics graph (number of needle rotations)

LLB3-1-P1R1VSF flow rate characteristics graph (fluid pressure)

High Flow Type (500 L/min)

LLB4-1-P1R1VSF flow rate characteristics graph (number of needle rotations)

LLB4-1-P1R1VSF flow rate characteristics graph (fluid pressure)

Test Conditions

Product models: LLB3-1-P1R1VSF and LLB4-1-P1R1VSF
Supplied pressure: 0.5 MPa
Pressure setting conditions and measured position: Pressure is set by turning the regulator knob with ON/OFF valve turned off.
Pressure is measured at the pressure outlet port.

Installation diagram based on test conditions

Precautions

*Ensure that you read the specific product precautions prior to use.
*See the manufacturer's catalog for product information other than the above.
*Product pictures are example representations for the product series. Please be aware that actual product specifications may be different.

Design and Selection

*Confirm the specifications: Give due consideration to the operating conditions such as the application, fluid and environment, and use within the operating ranges specified in the manufacturer's catalog.
*Ensure sufficient maintenance space: Provide the required space for maintenance inspection.
*Fluid pressure range: Supplied fluid pressure must be within the operating pressure range specified in the manufacturer's catalog.

Mounting

*If air leakage increases, or equipment does not operate correctly, stop use immediately.
*After mounting, perform suitable function and leak testing to confirm that the mounting is correct.

: 30; 45; 60

Part Number
LLB3-2-RSF

Part Number	Standard Unit Price	Minimum order quantity	Volume Discount	Days to Ship	Filtration Level	Plumbing Thread Nominal	Type	Connection Type	Treatment Air Flow Rate (l/min)	Operating Environment	Drain Cock	Bowl Material	Bowl Guard	Operating Pressure Range (MPa)	Connecting Tube Diameter	Specifications	Digital Flow Switch	Pressure Reducing Valve	ON/OFF Valve	Throttle valve	Compatible Models
	6,850,405 IDR	1 Piece(s)		31 Day(s)	0.01μm	1/4	Standard	[Rc (R)] Rc	100	Clean Room Specifications (Prevent dust)	No	[Plastic] Nylon Case	No	null～0.7	-	With filter	None	With pressure reducing valve	None	Yes	-

Basic Information

Compressed Air Quality	General Dry Air

Please check the type/dimensions/specifications of the part LLB3-2-RSF in the Clean Air Module (Standard / High Flow Type), LLB Series series.

Configure

1 Part Numbers

View Part Numbers

Configure Remaining Specifications

Completed

Specification/Dimensions

Connecting Tube Diameter
- φ10
- φ12
Clear
Compatible Models
- LLB3
- LLB4
Clear
type
- LLB3-1-□
- LLB3-2-□
- LLB3-2N-□
- LLB4-1-□
- LLB4-3-□
- LLB4-3N-□
- LVB2-□
- LVB3-□
- LVB4-□
Clear
Filtration Level
- No
- 0.01μm
Clear
Plumbing Thread Nominal
- 1/4
- 3/8
Clear
Type
- Standard
  - Standard
- Related Components (Auxiliary Devices)
  - Clean Air Filter Assembly
  - Clean Regulator Assembly
  - Digital Flow Switch Assembly
  - End Plate Assembly
  - ON/OFF Valve Assembly, Air-operated Valve
  - ON/OFF Valve Assembly, Manual Operation Valve
  - Pressure Outlet Port Assembly
  - Throttle Valve Assembly
Clear
Connection Type
- Rc (R)
  - Rc
- NPT
  - NPT
- One-Touch Plumbing
  - One-Touch Pipe
Clear
Treatment Air Flow Rate(l/min)
100

500
Clear
Operating Environment
- Clean Room Specifications (Prevent dust)
Clear
Drain Cock
- No
Clear
Bowl Material
- Plastic
  - Nylon Case
Clear
Bowl Guard
- No
Clear
Specifications
- 5 to 100 L/min
- 50 to 500 L/min
- With differential pressure gauge
- With filter
- With filter with differential pressure indicator
- With flow rate control
- Without flow rate adjuster
Clear
Digital Flow Switch
- NPN open collector 1 output + Analog (1 to 5 V)
- PNP open collector 1 output + Analog (1 to 5 V)
- NPN open collector 1 output + Analog (4 to 20 mA)
- PNP open collector 1 output + Analog (4 to 20 mA)
- NPN open collector 2 outputs
- PNP open collector 2 outputs
- None
Clear
Pressure Reducing Valve
- None
- With pressure reducing valve
- With pressure reducing valve + pressure outlet port assembly
Clear
ON/OFF Valve
- Manually operated valve (with lever lock)
- None
- With air-operated flow rate adjuster
- With air operation
Clear
Throttle valve
- None
- Yes
Clear
CAD
- 2D
- 3D
Clear

Days to Ship

All

20 Day(s) or Less

31 Day(s) or Less
Clear

Specify Alterations

The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .

Products like this...

Part Number
LLB3-1-P1R1F1
LLB3-1-P1R1SF
LLB3-1-P1R1V1F
LLB3-2-RV1F
LLB3-2-RV1SF
LLB3-2-RV1SF1

Standard Unit Price	Minimum order quantity	Days to Ship	Filtration Level	Plumbing Thread Nominal	Type	Connection Type	Treatment Air Flow Rate (l/min)	Operating Environment	Drain Cock	Bowl Material	Bowl Guard	Operating Pressure Range (MPa)	Connecting Tube Diameter	Specifications	Digital Flow Switch	Pressure Reducing Valve	ON/OFF Valve	Throttle valve	Compatible Models
-	1 Piece(s)	Quote	0.01μm	-	Standard	[One-Touch Plumbing] One-Touch Pipe	100	Clean Room Specifications (Prevent dust)	No	[Plastic] Nylon Case	No	null～0.7	φ10	With filter with differential pressure indicator	NPN open collector 1 output + Analog (1 to 5 V)	With pressure reducing valve + pressure outlet port assembly	None	None	-
-	1 Piece(s)	Quote	0.01μm	-	Standard	[One-Touch Plumbing] One-Touch Pipe	100	Clean Room Specifications (Prevent dust)	No	[Plastic] Nylon Case	No	null～0.7	φ10	With filter	NPN open collector 1 output + Analog (1 to 5 V)	With pressure reducing valve + pressure outlet port assembly	None	Yes	-
-	1 Piece(s)	Quote	0.01μm	-	Standard	[One-Touch Plumbing] One-Touch Pipe	100	Clean Room Specifications (Prevent dust)	No	[Plastic] Nylon Case	No	null～0.7	φ10	With filter	NPN open collector 1 output + Analog (1 to 5 V)	With pressure reducing valve + pressure outlet port assembly	With air-operated flow rate adjuster	None	-
-	1 Piece(s)	Quote	0.01μm	1/4	Standard	[Rc (R)] Rc	100	Clean Room Specifications (Prevent dust)	No	[Plastic] Nylon Case	No	null～0.7	-	With filter	None	With pressure reducing valve	With air-operated flow rate adjuster	None	-
-	1 Piece(s)	Quote	0.01μm	1/4	Standard	[Rc (R)] Rc	100	Clean Room Specifications (Prevent dust)	No	[Plastic] Nylon Case	No	null～0.7	-	With filter	None	With pressure reducing valve	With air-operated flow rate adjuster	Yes	-
-	1 Piece(s)	Quote	0.01μm	1/4	Standard	[Rc (R)] Rc	100	Clean Room Specifications (Prevent dust)	No	[Plastic] Nylon Case	No	null～0.7	-	With filter with differential pressure indicator	None	With pressure reducing valve	With air-operated flow rate adjuster	Yes	-

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Clean Air Module (Standard / High Flow Type), LLB Series (LLB3-2-RSF)

(i)Caution

Clean Air Module, LLB Series Specifications

Clean Air Module Common Specifications

Digital Flow Switch Unit Specifications

ON/OFF Valve Unit Specifications

Filter Unit Specifications

Pressure Reducing Valve Unit Specifications

Throttle Valve Unit Specifications

Product Outline Dimensional Drawing

Component Parts

Product Flow Rate Characteristics

Standard type (100 L/min)

High Flow Type (500 L/min)

Test Conditions

Precautions

Design and Selection

Mounting

Basic Information

Configure

Specification/Dimensions

Connecting Tube Diameter

Compatible Models

type

Filtration Level

Plumbing Thread Nominal

Type

Connection Type

Treatment Air Flow Rate(l/min)

Operating Environment

Drain Cock

Bowl Material

Bowl Guard

Specifications

Digital Flow Switch

Pressure Reducing Valve

ON/OFF Valve

Throttle valve

CAD