B21 Coil Accessory For Solenoid Valve
We Mainly do Pneumatic Cylinder, solenoid valve, pneumatic valve, air treatment units, quick connection fittings and PU tube . Our 4V. 3V.2V.2p .solenoid valve ,and 4A.3A Pneumatic valve sell so hot in Asia, Europe,and Middle East. We are popular in pneumatic and Hydraulic market. Our accessories taked from the same supplier as Airtac.
B21 Coil Accessory For Solenoid Valve
Basic Info:
We Mainly do Pneumatic Cylinder, solenoid valve, pneumatic valve, air treatment units, quick connection fittings and PU tube .
Our 4V. 3V.2V.2p .solenoid valve ,and 4A.3A Pneumatic valve sell so hot in Asia, Europe,and Middle East.
We are popular in pneumatic and Hydraulic market. Our accessories taked from the same supplier as Airtac.
Product Overview
B21 Coil Accessory For Solenoid Valve is a dedicated matching spare part for B21 series solenoid valves, serving as the core driving component to control valve opening and closing. It is extensively supporting for solenoid valves used in small home appliances, water treatment equipment and industrial fluid control pipelines.
General Specifications
| Parameter | Specification | Remarks / Selection Notes |
|---|---|---|
| Product Model | B21 Series Solenoid Valve Coil | Solenoid valve accessory |
| Interface Standard | DIN43650A (ISO 4400) | Universal industrial standard, plug-and-play |
| Compatible Valve Bodies | B11, B21, B31, B32, B81, E11, etc. | Select based on original valve model |
| Operating Voltage | DC12V, DC24V, AC220V, AC110V | Select based on control system voltage |
| Power Rating | DC: 14.5-17W / AC: 19-22VA | Low power design |
| Coil Resistance | 12Ω ±1 (for DC6V model) | Varies by voltage |
| Insulation Class | Class H (max 180℃) | High temperature resistance, suitable for long-term energization |
| Protection Rating | IP65 (DIN junction box standard) | Dust-tight, protected against water jets and oil |
| Duty Cycle | 100% ED | Suitable for long-term continuous energization |
| Electrical Connection | Standard junction box / Lead wire / Explosion-proof | Select based on installation environment |
| Indicator Light | LED indicator optional (red/green) | Facilitates on-site status inspection |
| Explosion-Proof Rating | Exd IICT4 / Exd IICT5 (optional) | For hazardous locations |
| Ambient Temperature | -40℃ ~ +79℃ | Suitable for extreme cold to high temperature environments |
| Certifications | CE / UL (select models) | Export certification |
Dimensions & Specifications by Size
| Connection (G/NPT) | DN | Valve Dimensions (L×W×H mm) | Cv Value | Max Pressure |
|---|---|---|---|---|
| 1/2" | 15 | 68 × 48 × 125 | 4.5 | 0.03~7.5MPa |
| 3/4" | 15 | 68 × 48 × 125 | 4.5 | 0.03~7.5MPa |
| 1" | 25 | 96 × 70 × 145 | 12 | 0.03~7.5MPa |
| 1¼" | 32 | 150 × 135 × 170 | 25 | 0.03~7.5MPa |
| 1½" | 40 | 160 × 145 × 180 | 31 | 0.03~7.5MPa |
| 2" | 50 | 185 × 155 × 210 | 50 | 0.03~7.5MPa |
Temperature Ratings by Seal Material
| Sealing Material | Temperature Range | Suitable Media |
|---|---|---|
| NBR | -20℃ ~ +80℃ | Air, water, natural gas |
| EPDM | -40℃ ~ +120℃ | Hot water |
| VITON / PTFE | -50℃ ~ +260℃ | Oil, hot water, low-pressure steam |
Specification Selection Table (G1/8" Connection)
| Orifice (mm) | Kv Value (m³/h) | Max Pressure - AC (bar) | Max Pressure - DC (bar) | Brass Model |
|---|---|---|---|---|
| 1.5 | 0.07 | 13 | 11 | STGV1-A3-11X |
| 2.0 | 0.14 | 11 | 9 | STGV1-02-11X |
| 2.5 | 0.21 | 9 | 7 | STGV1-A4-11X |
| 3.0 | 0.25 | 6 | 4 | STGV1-03-11X |
| 4.0 | 0.35 | 3.5 | 2 | STGV1-04-11X |
(X = Seal code: N=NBR, E=EPDM, V=FKM, F=Special material)
Sealing Materials & Temperature Range
| Seal Code | Sealing Material | Fluid Temperature | Suitable Media |
|---|---|---|---|
| X=N | NBR | -20℃ ~ 80℃ | Air, water, natural gas |
| X=E | EPDM | -20℃ ~ 135℃ | Hot water |
| X=V | VITON | -10℃ ~ 155℃ | Hot oil, hot water |
Model & Specification Table (G/NPT Thread Connections)
| Port Size | Orifice (mm) | Flow (Cv) | Pressure Rating |
|---|---|---|---|
| 1/2" | 15 | 4.5 | 0.3~16 Bar |
| 3/4" | 20 | 7.6 | 0.3~16 Bar |
| 1" | 25 | 12 | 0.3~16 Bar |
| 1½" | 40 | 19.2 | 0.3~16 Bar |
| 2" | 50 | 24 | 0.3~16 Bar |
Electrical Specifications
| Voltage | Coil Power | Operating Current | Coil Model | Connection Type |
|---|---|---|---|---|
| AC220V | 9VA | 0.04A | BA11 | Junction box |
| DC24V | 8W | 0.35A | BA11 | Junction box |
| AC110V | 9VA | 0.82A | BA11 | Junction box |
| DC12V | 8W | 1.68A | BA11 | Junction box |
| AC24V | 9VA | 0.375A | BA12 | 300mm lead wires |
| AC36V | 9VA | 0.25A | BA12 | 300mm lead wires |
Quick Selection Guide
| Nominal Diameter | Pipe Size | Recommended Model |
|---|---|---|
| DN10 | 3/8" | 2W-15-31X |
| DN15 | 1/2" | 2W-15-41X |
| DN20 | 3/4" | 2W-20-51X |
| DN25 | 1" | 2W-25-61X |
| DN32 | 1-1/4" | 2W-32-71X |
| DN40 | 1-1/2" | 2W-40-81X |
| DN50 | 2" | 2W-50-91X |
Media & Seal Material Selection
|
Selection Tips
1, Voltage Matching: AC220V is for standard mains power; DC24V/12V are better for industrial control, vehicle, and low-voltage systems. Always confirm the coil voltage to avoid burnout. 2,Temperature Limits: The seal material determines the maximum operating temperature. For example, NBR (80°C max) is not suitable for continuous use in hot water above 80°C, as it will degrade and leak. 3,Media Compatibility: Oily media requires VITON seals, as NBR will swell and fail in oil. Steam applications should use VITON or higher-grade seals. 4,Size Consistency: Always match the valve size to your pipe's nominal diameter. Using a smaller valve will restrict flow and shorten its lifespan.
Supplementary Key Points (3 Points Summary)
✅PTFE Seal UpgradePTFE sealing is newly upgraded, with temperature resistance up to 260℃, excellent resistance to strong acid, alkali and organic solvents, ideal for chemical and high-temperature steam working conditions.
✅Dual Power OptionsIt provides dual power specifications: 22VA/30VA for AC and 17W/24W for DC, matching different coil types and adaptable to customers' various power load requirements.
✅Model Code RuleThe letter X in the model stands for sealing material code: N=NBR, E=EPDM, V=VITON; just replace it directly when ordering.
Our Advantages:
✅Universal Compatibility: The B21 coil complies with industry standard interfaces, compatible with B21, B31, B32, B11, B81, E11, and other solenoid valve bodies – the versatile choice for equipment maintenance replacement .
✅Multiple Specifications: Available in DC12V, DC24V, AC220V and other voltage options, with power ratings of 14.5-17W. Optional LED indicator, explosion-proof coil, and lead wire connections available to meet various control requirements .
✅High Protection & Temperature Resistance: Standard IP65 protection rating (dust-tight and protected against water jets), with Class H coil insulation (180℃ max). Supports 100% continuous duty cycle – suitable for harsh industrial environments |
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1. Your inquiry related to our products or prices will be replied in 24 hours
2. Well-trained and experienced staffs to answer all your inquiries in fluent English.
3. OEM&ODM, any your customized lightings we can help your to design and put into product.
4. Distributorship is offered for your unique design and some our current models.
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When selecting a stainless steel pneumatic air gripper cylinder, consider factors such as gripping force, stroke length, operating pressure, compatibility with the object size and weight, and the specific environmental conditions of your application. It is advisable to consult the manufacturer's specifications and guidelines to ensure the proper selection, installation, and operation of the gripper cylinder for your specific requirements.
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