SHAKO 空気圧電磁弁 PU520-02S-DC24V

ブランド: SHAKO (台湾) | 5/2 Way, Single Solenoid, Internal Pilot Pneumatic 電磁弁

✅ モデルコードの定義

PU520: 5/2 five-port two-position バルブ

02: Main port G1/4″; Exhaust port G1/8″

S: シングルソレノイド (スプリングリターン, monostable)

DC24V: コイル電圧 DC24V (Order code No.9)

Standard thread: G thread; オプション: NPT / Rc

Suffix L = with LED indicator

📌 主要な技術仕様

📎 Matching Parts & 代替案

1. Manifold base: MF520-02 (multi-station manifold available)
2. Energy-saving upgrade: E-PU520-02S-DC24V, lower power consumption and less heat rise for long-term energization
3. Cross-brand equivalent models:

北極: 4V210-08 DC24V

Mindman: MVSC-220-4E1 DC24V

⚠️重要な注意事項

Single solenoid design: auto return when power off. Select PU520-02D (ダブルソレノイド) for latching function without power supply.

Internal pilot requires minimum inlet pressure ≥ 0.15 MPa. Select external pilot type PU520A for low-pressure or vacuum applications.

Standard DIN43650 socket; LED version with suffix L is optional.

Complete Technical Datasheet — SHAKO PU520-02S-DC24V

フルネーム: PU520-02-S DC24V 5/2-Way Internal Pilot Single Solenoid Valve (PU Series Pilot Valve)

Original PDF source: SHAKO official PU520 series catalogue

1. Model Coding

PU520 02 S DC24V

PU520: 5/2 five-port two-position pilot solenoid valve

02: Main air port G1/4″; Exhaust port G1/8″

S: シングルソレノイド, スプリングリターン (auto reset on power loss)

DC24V: コイル電圧 DC24V

Thread default: G; Optional Rc (PT), NPT; Suffix L = with LED indicator

2. 製品の特徴
3. Medium-size body with large flow capacity, effective area 18 mm²
4. Equipped with lockable manual override, no electricity or air supply needed for field test
5. Anodized aluminum body, wear-resistant and long service life
6. DIN43650 standard socket, IP65 protection suitable for industrial sites
7. Can be mounted on manifold or with individual base
8. Optional energy-saving coil E-PU520-02S-DC24V, low power and low temperature rise
9. Rated Technical Data

⚠️ Do not use this internal pilot model under low pressure or vacuum; choose PU520A-02S (external pilot) instead

4. Port Definition (5/2 Way)

P: 入口 (G1/4)

あ: 出力 1 (G1/4)

B: 出力 2 (G1/4)

R, S: Two exhaust ports (G1/8)

De-energized state: P ↔ A open; B ↔ S exhaust

Energized state: P ↔ B open; A ↔ R exhaust

Auto reset to P-A open when power cuts off (single solenoid characteristic)

5. コイル & 配線 (DC24V DIN43650)

Pin definition: 1(+), 2(-), PEアース

Non-polarized coil version: 端子 1 & 2 can be swapped; LED version is polarized – wrong polarity only causes indicator off without damaging the valve

消費電力: Standard coil ≈4.8W; E energy-saving coil ≈1.2W

Cable outer diameter: Φ6～Φ8mm; use waterproof cable gland

Grounding is mandatory; install full sealing gaskets for dusty & splash environments

6. 全体 & 取付寸法 (PU520-02-S)

身幅: 26 mm

取付穴: 2×Φ4.3; hole spacing: 70 mm

全高 (コイル付き & ソケット): 約. 100 mm

全長: 約. 130 mm

Two mounting options:

1. マニホールド取付: fixed on MF520-02 (recommended for multi-valve centralized control)
2. Individual pipe mounting: with separate base

Manifold MF520-02 supports 2~10 stations, with blanking plugs and mufflers optional

7. インストール, 試運転 & Operation Rules

インストール

1. Install air filter (≥40μm) 上流; air treatment triple unit is recommended; no oil & dirt contamination allowed
2. No strict mounting orientation; keep coil facing upward to avoid water accumulation
3. Purge all piping before connecting the valve to prevent metal chips jamming the spool
4. Install mufflers on exhaust ports for noise reduction and dust prevention; never block exhaust ports

Manual Override Button

Press down: force spool to shift; rotate 90° to lock the shifted position for continuous testing

リセット: turn back to unlock; spring resets automatically after release

Manual lock is only for commissioning; do not keep locked during normal operation

Power-on Commissioning Sequence

1. Supply compressed air up to rated pressure and check for air leakage
2. Apply DC24V power and verify cylinder movement; check LED lamp (L model)
3. Cut power to confirm automatic spring reset
4. Troubleshooting List

9. スペアパーツリスト
10. Manifold base: MF520-02 (1-駅), MF520-02-XX (multi-station)
11. DIN socket: Standard socket / LED indicator socket
12. Muffler: BSL-M5 / BSL-01 (fits G1/8 exhaust port)
13. Blanking plugs, ガスケット, separate coil assembly
14. Isolation block SOB52-02: Replace valve without shutting down main air supply (online maintenance without line stop)
15. ブランド間の同等モデル

北極: 4V210-08 DC24V

Mindman: MVSC-220-4E1 DC24V

チェリック: SV-5201 DC24V

注記: Mounting hole pitch and base are not interchangeable; only function & port size match

11. メンテナンススケジュール

Normal environment: Blow exhaust ports and check air leakage every 3 月

Dust/humid environment: 月次点検; disassemble & clean spool and inspect NBR seals every 6 月

Seal service life: 約. 5 million switching cycles; replace seal kit before reaching cycle limit

Working Principle — SHAKO PU520-02S-DC24V

5/2 five-port two-position, シングルソレノイド, internal pilot solenoid valve

基本原則: The coil only actuates a small pilot valve; air pressure difference from main supply pushes the main spool to shift; spring resets automatically when power cuts off (not direct pull by coil like direct-acting valves)

Internal Structure

1. Solenoid assembly (DC24Vコイル + アーマチュア): controls the small pilot valve
2. Pilot air circuit: 内部パイロット, air is tapped from P inlet; no external control air required
3. メインスプール & リターンスプリング
4. Five ports: P (入口), A/B (outlets), R/S (exhausts)

Key limitation: Internal pilot needs minimum inlet pressure ≥0.15 MPa (1.5 バー) to build pressure difference for spool actuation; select PU520A external pilot for low-pressure & vacuum applications

1. 非通電状態 (ノーマルポジション, 春の帰還)

コイルが非通電状態, armature drops, pilot valve closes; pilot control chamber vents

Right-side return spring pushes main spool to left

Air circuit: P ↔ A open; B ↔ S exhaust

Cylinder A side air inlet, B side exhaust; cylinder stays at initial position

2. Energized State (DC24V Powered On)

コイル通電, magnetic force pulls armature up; pilot valve opens

Compressed air from P inlet flows through pilot hole into right-side control chamber

Pressure on right side overcomes spring force; air pressure pushes main spool to shift

Air circuit switches: P ↔ B open; A ↔ R exhaust

Cylinder B side air inlet, A side exhaust; cylinder reverses movement

3. Power Cut Off Again

Magnetic force disappears, pilot valve closes; air inside pilot chamber vents out from pilot exhaust hole

Main spool is pushed back to original position by return spring; air circuit reverts to P-A open status

✅ Feature of single solenoid (S): auto reset on power loss (monostable); select double solenoid (D) for position latching without power supply.

Manual Override Principle

The lockable manual push button mechanically actuates the pilot spool without power or air supply, simulating energized status for field commissioning. Rotate 90° to lock the shifted position; remember to unlock after testing.

Advantages over Direct-Acting Valves

低いコイル電力 (≈4.8W), 小型, low temperature rise

Large spool flow capacity (18 mm² effective area)

サポート 100% continuous energization (100% ED)

短所: Minimum actuating pressure threshold; cannot work under zero pressure

Air Circuit Logic Summary

SHAKO Solenoid Valve Full Series Catalogue (By Function & サイズ)

注記: PU, 午前, BM, BW, PS, CY = pneumatic directional control valves (5/2,5/3,3/2); PU220/SPU220/PU225 = 2/2 fluid valves (空気, 水, 油); Prefix E = energy-saving low-power coil

Suffix General Definition

S: シングルソレノイド (スプリングリターン, monostable)

D: ダブルソレノイド (ラッチング, no power hold)

あ: 外部パイロット (空の & low-pressure use)

B: Built-in silencer

X/Y: 5/3-way mid-position function (X=closed center; Y=exhaust center; Z=pressurized center)

L: With LED indicator

E: 省エネコイル

Port code: 01=G1/8; 02=G1/4; 03=G3/8; 04=G1/2

1. 5/2 2-Position 5-Port / 5/3 3-Position 5-Port Pilot Solenoid Valves (Main cylinder control)

AM520 Series (18mm narrow body, G1/8 port, equivalent to Airtac 4V110)

AM520-01S / AM520-01D (5/2 single/double solenoid)

AM530X/Y-01D (5/3 closed/exhaust/pressurized center)

AM520A: 外部パイロット; AM520B: Built-in silencer

Matching manifold: MF520-01

BM520 Series (22幅mm, G1/4ポート, equivalent to Airtac 4V210)

BM520-02S / BM520-02D

BM530X/Y-02D (5/3 three-position)

BM520A: 外部パイロット; E-BM520: Energy-saving version

Matching manifold: MFB520-02

PU520 Series (Your selected medium size, 26幅mm, 大きな流れ, G1/4~G1/2)

PU520-02S/D, PU520-03S/D, PU520-04S/D (5/2 two-position)

PU530X/Y-02D, PU530X/Y-03D, PU530X/Y-04D (5/3 three-position)

PU520A: 外部パイロット (vacuum/low pressure); PU520AB

E-PU520: 省エネコイル (低電力 & 弱火)

Matching manifold: MF520-02 / MF520-03 / MF520-04

BW520 Series (Wide body high flow, G3/8 & G1/2, equivalent to 4V410)

BW520-03S/D, BW520-04S/D

BW530X/Y-03D, BW530X/Y-04D

PS520 Series (ISO standard mounting, ISO1/ISO2 interchangeable base)

PS520-02S/D, PS520-03S/D, PS520-04S/D

PS520F: ISO flange mounting

E-PS520: Energy-saving model

CY520 / CY525 Series (Economical pilot valves)

CY520-02S/D, CY520-03S/D

E-CY520, E-SCY520 (SUS316 stainless steel anti-corrosion version)

CY525: Combined 3/2 + 5/2 関数

1. 3/2 3-Port 2-Position Pilot Solenoid Valves (Single-acting cylinder, 空の & ブローオフコントロール)

PU320 / PU322N: 3/2 pilot type, ポート 01/02/03/04

BM320: 3/2 pilot valve

E-AM325: Energy-saving direct-acting 3/2 バルブ

Ⅲ. 2/2 2-Port 2-Position Solenoid Valves (流体制御: 空気, 水, 油, スチーム, corrosive low-pressure media)

直動式 / pilot-operated; brass body / SUS316 stainless steel; 通常は閉まっている (ノースカロライナ州) 標準として

1. PU220A Direct-acting (low pressure & vacuum applicable)

PU220A-01/02/03/04/06/08

2. SPU220AR SUS316 stainless steel direct type, anti-corrosion for air & 水

SPU220AR-01/02/03; E-SPU220AR energy-saving version

3. PU225X Pilot-operated 2/2 (high pressure large flow, 最大. 50 バー)

PU225X-03/04/06/08

4. PU225S Steam-specific 2/2 バルブ; flange type PU225SF
5. DC220 Large-bore 2/2 バルブ (3/4″~3″, dust removal & 給水)
6. 特別モデル

E-SPU520: SUS316 stainless steel 5-port pilot valve for corrosive environment

Explosion-proof coil optional: Compatible with PU/BM/PS series, ATEX T4 certified

Pneumatic pilot valves (no solenoid): PA520, PB520, PP520, same body size as solenoid versions

1. Selection Cross Reference Table

1. Manifold Naming Rule

MF520-02-03: PU520 series, G1/4ネジ, 3-ステーションマニホールド; MFB520 = dedicated manifold for BM520 series