SIRAI L323V01G-Mini Solenoid Valve Body

Basic Model Definition

ブランド: SIRAI (now owned by ASCO Emerson, original Italian manufacturer)

モデル: L323V01G

関数: 3/2 Direct-Acting Normally Closed (ノースカロライナ州) Mini Solenoid Valve Body (Coil Not Included; ZA/ZB Series Coils to Be Ordered Separately)

主要な技術仕様

Fluid Structure Parameters

パラメータ項目	仕様
回路構成	3-Way 2-Position, 通常閉 (ノースカロライナ州)
Actuation Type	直動式 (No pilot; reliable actuation at low pressure)
ポートネジ	G1/4 Female Thread (ISO228/1)
オリフィス径	1.5 mm
Flow Coefficient Kv	0.08 m3/h
バルブボディ材質	OT58 Brass
Standard Seal	NBR Nitrile Rubber (FKM Fluoroelastomer / EPDM Optional)
Max Medium Viscosity	37 cSt (5°E)

圧力範囲

Max Static Pressure Rating: 40 バー

Operating Pressure Differential for AC Coils: 0 ～ 16 バー

Operating Pressure Differential for DC Coils: 0 ～ 10 バー

温度範囲

中温: -10℃ ~ +90℃

周囲温度: -10℃～+50℃ (Max 60℃ for Class F Coils; Max 80℃ for Class H Coils)

電気的整合 (Coil Not Included with Valve Body)

Compatible Coil Models: ZA10A, ZB10A, ZA13A, ZB14A, 等.

Standard Voltages:

交流: 24V/50Hz, 110V, 220/230V 50Hz

直流: 12V, 24V

侵入保護: IP67 when fitted with standard DIN connector; 100% ED (Continuous energization without coil burnout)

3/2-Way Operating Principle
通電されていない (Normal Closed State): Inlet Port 1 is sealed; ポート 2 communicates with exhaust Port 3 for pressure relief.
元気が出る (Open State): Solenoid pulls plunger; flow path 1→2 opens, exhaust Port 3 is closed.

アプリケーション: Pneumatic direction switching, vacuum gripping, small air circuit shutoff, water spray control.

Compatible Media & 産業用途
Applicable Media: 圧縮空気, nitrogen, clean water, diluted coolant, non-corrosive inert gas.

NBR is incompatible with oil and high-temperature steam; select FKM seal version for corrosive media.

代表的な用途

Mini pneumatic directional valves for automation equipment

Water circuit control for small washers and humidifying spray systems

Small air circuit shutoff for packaging machines & 繊維機械

実験器具 & miniature vacuum circuit control

モデルの選択 & Matching Guidelines
Complete Order Model Format: L323V01G-ZA10A 230VAC (Valve Body + コイル + 定格電圧)
Seal Upgrade: Custom valve bodies with FKM fluoroelastomer seals available for high-temperature / oil-water working conditions.
代替モデル: Same series L323V02G (Normally Open NO), L323V03G Universal Type
Mounting Requirements: Mountable at any angle. Install a 40–100 mesh filter upstream of piping to prevent plunger jamming by contaminants. Only wrap the last two rear threads of male pipe threads with PTFE tape to avoid debris entering the valve chamber.
一般的なトラブルシューティングマトリックス

故障現象	根本的な原因	是正措置
No switching when energized	焼けたコイル, mismatched voltage, pressure differential exceeds 10 bar for DC	Replace matching coil; reduce pipeline pressure differential
Persistent leakage after shutdown	Contaminants on plunger, aged seals	Disassemble and clean plunger; replace NBR/FKM seal kit
Coil heats up rapidly	Incorrect voltage selection, long-term excessive pressure differential, damaged coil insulation	Verify nameplate voltage; adopt Class H high-temperature coil
Continuous air leakage from exhaust port	Worn plunger, seal scratched by particulate media	Install upstream filter; replace complete valve body assembly

ASCO SIRAI L323V01G Solenoid Valve Instruction Manual

正式な製品名: SIRAI L323V01G 3/2 Direct-Acting Normally Closed Mini Solenoid Valve Body (Coil Not Included)

Brand Affiliation: SIRAI Italy, a fluid control brand under Emerson ASCO

適用規格: CE, UL, RoHS, DIN43650 electrical connector, ISO228/1 pipe thread

Table of Contents

製品概要 & モデルの解釈
主要な技術仕様
Valve Body Structure & Fluid Circuit Principle
材料 & Seal Selection
Matching Coil Models & 電気仕様
全体の寸法 & 取付方法
Piping Installation Specifications
Electrical Wiring Instructions
Media Compatibility & アプリケーションシナリオ
メンテナンス手順
故障診断 & 救済策
Complete Order Model Rules
Safety Prohibitions
製品概要 & モデルの解釈

1.1 Product Introduction

The L323V01G is a 3-Way 2-Position Normally Closed (ノースカロライナ州) direct-acting solenoid valve body. Pilot-free design enables reliable startup under low pressure. Compact size adapts to miniature pneumatic, water and vacuum control loops. Valve body and coils are supplied separately; ZA/ZB series coils must be ordered independently.

1.2 Model Breakdown – L323V01G

セグメント	意味
L323	L323 series miniature direct-acting solenoid valve platform
V	Brass valve body version (OT58 Brass)
1	3/2 通常閉 (ノースカロライナ州)
G	G1/4 BSPP Female Thread (ISO228/1)

Suffix Comparison for Same Series:

02 = 3/2 通常開 (いいえ)

03 = 3/2 ユニバーサルタイプ

Thread Suffix F = G1/8

主要な技術仕様

2.1 Fluid Performance

パラメータ項目	Standard Specification
Functional Type	3-Way 2-Position, 通常閉 (ノースカロライナ州)
接続口径	G1/4 Female Thread
Seat Orifice Diameter	1.5 mm
Flow Coefficient Kv	0.08 m3/h
Max Medium Viscosity	37 cSt (5°E)
Max Static Pressure Rating	40 バー
Max Operating Differential Pressure (ACコイル)	0 ～ 16 バー
Max Operating Differential Pressure (DCコイル)	0 ～ 10 バー

2.2 温度範囲

中温: -10℃ ~ +90℃ (NBR Seal); -10℃ ~ 120℃ (FKM Fluoroelastomer Seal)

周囲温度: -10℃ ~ +50℃ for standard Class F coils; max 80℃ for Class H high-temperature coils

2.3 保護 & 認証

IP67 dustproof and waterproof with standard DIN connector

CE EMC compliance, UL coil certification, RoHS lead-free environmental standard

Coils support 100% ED continuous energization without overheating burnout risk

Valve Body Structure & Fluid Circuit Principle

3.1 Valve Port Number Definition (3-Way)

ポート 1 (P): Media Inlet (Air/Water Supply)

ポート 2 (あ): Actuator Outlet (Cylinders, Spray Nozzles, Vacuum Suction Cups)

ポート 3 (R): Exhaust / Drain Port

3.2 Operating States

De-energized Normal State (NC Closed)

Spring resets the plunger to seal Port 1; ポート 2 connects to Port 3 for pressure relief at the actuator end.

Coil Energized Open State

Solenoid magnetic force overcomes spring tension to pull the plunger; flow path 1→2 opens for media output, and Port 3 exhaust passage is sealed.

材料 & Seal Selection

4.1 Base Materials

Valve Body: OT58 Brass

Plunger & Moving Armature: ステンレス鋼

春: 304 ステンレス鋼

4.2 Seal Material Selection Table

Seal Grade	材料	Applicable Media	Max Temperature
Standard Factory Fit	NBR Nitrile Rubber	圧縮空気, clean water, diluted coolant	90℃
Optional Upgrade	FKM Fluoroelastomer	Engine oil, diesel, high-temperature water, weakly corrosive solvents	120℃
Special Custom	EPDM Ethylene Propylene Rubber	Hot water, ozone, weak acid water	110℃

Matching Coil Models & 電気仕様

Coils are not included with valve bodies. Complete valve assembly requires matching ZA/ZB series coils; standard models: ZA10A, ZB10A, ZA13A, ZB14A.

5.1 Standard Voltage List

AC Alternating Current: 24V 50Hz, 110V 50Hz, 230V 50Hz

DC Direct Current: 12ワシントンDCで, 24ワシントンDCで

5.2 Coil Electrical Characteristics

絶縁クラス: Optional Class F (155℃) / クラスH (180℃)

コネクタ: DIN43650 3-pin standard plug (2 power pins + earth pin)

消費電力: 約. 8AC用VA; 約. 6DCの場合はW

全体の寸法 & 取付方法
取り付け & 固定する: Two M3 through mounting holes at valve bottom; mountable at any orientation (水平, vertical, inverted without position restrictions).
Key Overall Dimensions (mm):

Total valve length: 45.5, 幅: 28, 身長: 21; Thread depth: 9.9

Coil Assembly: Vertically snap coil onto positioning posts on valve top; secure via rotary latch, no tools required for assembly/disassembly.
Piping Installation Specifications
Install upstream filter: 40–100 mesh precision screen to prevent seal scratching by particulate contaminants.
Thread Sealing: Only wrap the last two rear threads of male pipe fittings with PTFE tape; forbid debris entering valve chamber.
トルク制御: Tightening torque for G1/4 fittings: 8–10N·m to avoid thread slipping or brass body cracking.
Media Flow Direction: Strictly follow marking 1(P)→2(あ) on valve body; reverse pressurization prohibited.
Maintenance Clearance: Reserve minimum 30mm clearance on coil side for disassembly.
Electrical Wiring Instructions

8.1 Pre-Wiring Safety Requirements

Perform wiring with power disconnected; confirm zero circuit voltage before plug insertion/removal.

Voltage fluctuation limited within ±10% of rated voltage.

8.2 端子の定義 (3-Pin DIN Connector)

ピン 1: パワーラインL / DC Positive (+)

ピン 2: Neutral Line N / DC Negative (-)

ピン 3: Protective Earth (Yellow-Green cable; reliable equipment grounding required)

8.3 AC vs DC Distinction

AC Coils: 無極性; Pin1/Pin2 can connect live and neutral interchangeably.
DC Coils: Pin1 connects positive, Pin2 connects negative. Reverse polarity will not damage coil but prevents valve switching.

8.4 Waterproof Treatment

Rubber sealing gasket built into plug; tighten lock nut fully after wiring to maintain IP67 rating. Select LED-indicator waterproof plugs for humid outdoor environments.

Media Compatibility & アプリケーションシナリオ

9.1 Permitted Media

Dry compressed air, nitrogen, clean water, diluted cutting fluid, vacuum negative pressure circuits

9.2 Prohibited Media

Concentrated acid & アルカリ, strong organic solvents, high-viscosity oil, particle-laden wastewater, steam (custom high-temperature FKM version required for steam service)

9.3 Typical Industrial Applications

Mini cylinder direction switching for automation equipment
Adhesive spraying & water mist humidification control for packaging machinery
Small air circuit shutoff for textile machines
実験器具 & miniature medical fluid circuits
Vacuum gripping & water switch control for small cleaning equipment
メンテナンス手順

10.1 Routine Monthly Inspection

Check coils for abnormal overheating or abnormal noise
Inspect pipe threads for media leakage
Verify no continuous air/water dripping from exhaust port

10.2 Periodic Disassembly & クリーニング (毎 3000 Operating Hours)

Shut off air/water supply, release residual pressure and cut power supply.
Remove coil, disassemble plunger assembly at valve bottom.
Rinse contaminants from plunger and valve seat with purified water and anhydrous alcohol.
Inspect seals for aging or cracking; replace full seal kit if damaged.
Reassemble in original sequence and perform air/water leakage test.

10.3 Spare Parts List

シールキット, complete plunger assembly, matching coils, DIN waterproof connectors

故障診断 & Remedy Matrix

故障現象	根本的な原因	Standard Remedial Solution
Valve fails to switch on energization	1. 焼けたコイル; 2. Mismatched voltage; 3. Differential pressure over 10 bar for DC	コイル抵抗を測定する, replace compatible coil; reduce pipeline differential pressure
Persistent leakage at Port 2 after power-off	Contaminant adhesion on plunger, scratched worn NBR seals	Disassemble and clean plunger; replace full seal set
Continuous air leakage at exhaust Port 3	Damaged seat seal, sealing surface worn by particulate media	Install upstream filter; replace complete valve body assembly
Coil overheats rapidly	Excessive supply voltage, long-term over differential pressure, aged coil insulation	Match supply voltage to nameplate; replace Class H high-temperature coil
Threaded fitting leakage	Insufficient PTFE tape wrapping, insufficient fitting torque	Rewrap sealing tape and fasten to specified torque

Complete Order Model Rules

Standard Full Model Format:

L323V01G-ZA10A 24VDC

Breakdown: Valve Body Model + Coil Model + 定格電圧

例:

L323V01G-ZB10A 230VAC (Complete valve with 220V AC coil)

L323V01G-ZA13A 24VDC (Complete valve with 24V DC coil)

Seal Upgrade Marking for Orders: Append suffix -FKM, 例えば. L323V01G-FKM-ZA10A 24VDC

Safety Operating Prohibitions
Static pressure exceeding 40 bar strictly forbidden; overpressure will rupture brass valve body directly.
DC circuit differential pressure cannot exceed 10 bar for long-term operation, otherwise full shutoff cannot be achieved.
Operation without upstream filter prohibited; contaminants will permanently damage seals.
Hot plug/unplug of coil connector forbidden; electric arcs may burn coil terminals.
FKM seal version mandatory when medium temperature exceeds 90℃; NBR seals degrade rapidly and fail.
Reverse media installation (inlet via Port2, outlet via Port1) prohibited; permanent internal leakage will occur.
Do not cover coil surface with thermal insulation cotton or debris; sufficient heat dissipation space must be reserved.