Chemical Liquid Valve Non-Metallic Exterior, Air Operated, Insert Bushing Type Fitting Integrated, Space Saving

Brand :

SMC

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Product Description

A integrated/space-saving insert bushing type connector for chemicals, with non-metal exterior that prevents liquid pooling.
[Features]
· A non-metal construction that joins the actuator to the body without using any metal screws.
· Special structure allows the valve to open and close slowly, preventing the formation of micro-bubbles.
· Can be used with liquid chemicals such as acids, alkalis and ultrapure water.
· Prevents seat surface misalignment and internal leakage.
· Prevents heavy impact to the valve and the generation of particles.
· Prevents diaphragm deformation and damage due to back pressure.

Chemical Valve With Non-Metallic Exterior, Insert Bushing Type Fitting, Integrated/Space-Saving Connector, LVQS Series Details

Chemical Valve With Non-Metallic Exterior, Insert Bushing Type Fitting, Integrated/Space-Saving Connector, LVQS Series product image

Chemical Valve With Non-Metallic Exterior, Insert Bushing Type Fitting, Integrated/Space-Saving Connector, LVQS Series Specifications

Model		LVQ20S	LVQ30S	LVQ40S
Connection Fitting Size		2	3	4
Fitting type	In/out port	LQ1 or LQ2
Fitting type	Pilot Port	LQ1
Orifice Diameter		ø4 (orifice diameter: 4 mm)	ø8 (orifice diameter 8 mm)	ø10 (orifice diameter: 10 mm)
Flow Rate Characteristics	Kv	0.3	1.1	1.6
Flow Rate Characteristics	Cv	0.35	1.3	1.9
Pressure Resistance (MPa)		1
Pressure Used (Flow from A to B)	Standard	-98 kPa to +0.5 MPa*¹
Pressure Used (Flow from A to B)	High Temperature	-98 kPa to +0.3 MPa*¹
Back Pressure (MPa)	Standard	0.3 or less
	High Back Pressure	0.42 or less
	High Temperature	0.3 or less
Valve Leakage Volume (cm³/min)		0 (at water pressure)
Operating Pressure (MPa)		0.3 to 0.5 (0.45 to 0.55 for high-back pressure specification)
Pilot Port Diameter		1/8 in (ø3 [3 mm diameter]), ø4 (4 mm diameter), Rc 1/8, NPT 1/8
Fluid Temperature Used (°C)	Standard	0 to 100
Fluid Temperature Used (°C)	High Temperature	0 to 170
Ambient Temperature (°C)		0 to 60
Weight (kg)		0.085	0.175	0.223

*¹ Cannot be used for vacuum retention. Please note that using the B Port side as a vacuum can shorten the product's lifespan.

Model Number Notation

Model number example

(1) Body Class

Notation	Body class	Orifice Diameter
2	2	ø4 (orifice diameter: 4 mm)
3	3	ø8 (orifice diameter 8 mm)
4	4	ø10 (orifice diameter 10 mm)

(2) Valve Type

0	N.C.
1	N.O.
2	Double acting

(3) Body Type

S	Space-saving connector

(4) Fitting Type

Notation	Fitting type	Body class
V	LQ1	2/3/4
S	LQ2	2/3/4

*Insert bushings fit all models.

(5) Compatible Fitting Size

Notation	Fitting Size	Body class
Notation	Fitting Size	2	3	4
07	2	○	-	-
11	3	-	○	-
13	4	-	-	○

*Please select an item that is the same size as the fitting on the valve side.

(6) Pilot Port Type

No notation	LQ1 integrated fitting	Connection Tube Size 1/8 in × 0.086 in (3 × 2)
M	LQ1 integrated fitting	Connection Tube Size 4 × 3
R	Screw-in	Rc 1/8
N	Screw-in	NPT 1/8

(7) Pilot Port Direction

Notation	Direction
No notation	(1)

Pilot port piping direction

*Please do not change the direction of the pilot port

(8) Option 1

No notation	None
1	With flow rate control
2	With bypass
3	With flow rate control and bypass
4	With indicator
5	High back pressure (0.42 MPa)
6	With high back pressure and flow rate control
9	With high back pressure and indicator

*Items in Option 1 cannot be combined with each other.

(9) Option 2

Notation	Compatible Options										Note
Notation	1	2	3	4	5	6	7	8	9	24	Note
No notation	○	○	○	○	○	○	○	○	○	○	-
J	○	-	-	-	-	-	-	-	-	-	For high temperatures
N	○	○	○	○	○	○	○	○	○	○	For ammonium hydroxide

*Items in Option 2 cannot be combined with each other.

Example Diagram

Basic type, N. C. type, diagram

Component Parts

Number	Part Name	Material
1	Actuator	PVDF
2	Body class	PFA
3	Diaphragm	PTFE
4	Insert bushing	PFA
5	Nut	PFA

Chemical Valve With Non-Metallic Exterior, Insert Bushing Type Fitting, Integrated/Space-Saving Connector, LVQS Series Example Dimensions

(Unit: mm)

Basic type, high back pressure, N.C. Valve dimensional drawing

LVQ□0S-□-V / LVQ□0S-□-S Dimensions Table (N.C. Valve)

Model	A	B	C	D	E	F	G	H		J	K	L	M	N	P	Q	R
Model	A	B	C	D	E	F	G	V□	S□	J	K	L	M	N	P	Q	R
LVQ20S-V07 LVQ20S-S07	25.5	46	31.5	58	33.6	56.5	12	89	92	21.8	37	5	7	15	31.3	21	25.3
LVQ30S-V11 LVQ30S-S11	28.5	57	34.5	69	45.4	77	16.5	106	112	32	50	6	7	20	37.2	25	31.2
LVQ40S-V13 LVQ40S-S13	28.5	57	34.5	69	45.4	82.5	22	120	126	37.5	55.5	6	7	20	37.2	25	31.2

*LVQ60 is "V" only.