[High vacuum]
Vacuum leakage rate 1.0 x 10^-9 Pa/s or less, compatible with high vacuum systems.
[Lightweight and compact]
Lightweight and compact thanks to the thin coil.
[Variation]
Optimum selection is possible from five coil sizes and multiple orifice sizes.
[Wide range of connections]
VCR compatible fitting (JXR fitting), double barbed fitting integrated also available, vacuum container, vacuum retention of piping.
No. | Part name | Material | No. | Part name | Material | ||
1 | Coil assembly | (Molded coil) | 4 | O-ring | FKM | Fluoro rubber | |
2 | Core assembly | SUS405, SUS316L | Stainless steel | 5 | Spring | SUS304 | Stainless steel |
3 | Plunger assembly | SUS405, FKM | Stainless steel, fluoro rubber | 6 | Body | SUS304 or SCS13 | Stainless steel |
Specification:
Item | HVB512 |
Working fluid | Air/vacuum/inert gas (*1) |
Proof pressure MPa | 5.0 (≈730 psi, 50 bar) |
Fluid temperature °C | 5 (41°F) to 55 (131°F) |
Ambient temperature °C | 0 (32°F) to 55 (131°F) (no freezing) |
Thermal class | Class 130 (B) |
Voltage fluctuation range | Rated voltage ±10% |
Atmosphere | No explosive or corrosive atmospheres |
Valve structure | Direct acting poppet structure |
Valve seat leakage Pa m3/sHe | 1.0 x 10-9 or less (*2) |
External leakage Pa m3/sHe | 1.0 x 10-9 or less |
Mounting orientation | Unrestricted |
Durability | 2 million times |
Individual specifications
Outlook & Dimension:
Model No. | A | B | C | D | E | F | G | H | J | K | L |
HVB212-4RM | 51 | 21 | 25 | 9.5 | 48 | 58 | 15.5 | 19.5 | 22 | 15 | M4 x 0.7 depth 6 |
HVB312-4RM | 64 | 30 | 25 | 9.5 | 53.5 | 64.5 | 18.5 | 22.5 | 28 | 18 | M5 x 0.8 depth 8 |
HVB412-4RM | 64 | 34 | 32 | 11.6 | 66 | 79.5 | 22.5 | 26 | 34 | 18 | M5 x 0.8 depth 8 |
HVB412-6RM | 75 | 34 | 32 | 11.6 | 66 | 79.5 | 22.5 | 26 | 34 | 18 | M5 x 0.8 depth 8 |
HVB512-4RM | 64 | 34 | 32 | 11.6 | 71.5 | 86.5 | 26 | 29.5 | 40 | 18 | M5 x 0.8 depth 8 |
HVB512-6RM | 75 | 34 | 32 | 11.6 | 71.5 | 86.5 | 26 | 29.5 | 40 | 18 | M5 x 0.8 depth 8 |
Huatong Pneumatic produces high-quality pneumatic and hydraulic cylinders as well as pneumatic valves, complete pneumatic systems, pneumatic / electrical stainless steel cabinets in all sizes and various custom-made accessories and spare parts according to our customer needs. We have satisfied customers for our custom-made pneumatics in China, USA, Germany, Italy, Holland, Australia and various other countries.


Q1: Are you a manufacturer or trading company?
A: We are an integrated industrial and trade enterprises. We have our own factory and marketing department.
Q2: How do you ensure your product and service quality?
A: Our processes strictly adhere to ISO 9001 procedures. Every product will be strictly tested before packing and shipping.
Q3: How can you customize cylinders?
A: Our engineer will design with your drawing or requirements, and send our drawing for you to check. Then, we will arrange production.
Q4: How can I make payment?
A: We accept T/T, L/C, Western Union.
Q5: What's your minimum order quantity?
A: All MOQS vary, depending on the products. Please feel free to check with us for specific items.
Q6: What about your delivery time?
A: It depends, but usually takes about 1-6 weeks.
Q7. What about shipping?
A: We suggest small batch by air/express and bulk by sea.
Q8. Do you have OEM/ODM service?
A:Yes. We OEM and ODM for some famous brand.
Q9. What's your policy if we want to distribute your products in local market?
A: Thanks for your interest and support. We would like to offer some Preferential policies, like discount in price, prepare stock and so on. Welcome to our factory and have a face-to-face talk.
Q10: What about your after-sales service?
A: We have a professional after-sales service team. Your feedback will be quickly responded and solved.
