Product Details
YSI series 2-Way SS pilot operated ( NC ) high pressure solenoid
valve DN 15~50mm
high pressure solenoid valve Structural features
Pilot diaphragm, the maximum pressure 6.0M MPa Air Force, Navy
ancillary products
Compact design and sophisticated appearance, low temperature rise,
no noise, no leakage
Action in response to the rapid, reliable and high-frequency
technology in Germany, export series, quality
The medium containing impurities, a filter must be installed before
the valve (not less than 80 mesh strainer / cm 2); and no
solidification or crystal phenomenon.

YSI-series(NC)specification table (use ES coil,power will be about 1/4 of using normal coil)
model | orifice size ( mm ) | Interface size | Cv | working pressure(bar) | length×width ×height ( mm ) | normal order code
| weight (Kg) |
AC200V | DC24V | Plastic seal AC220V G thread |
YSI-15J | 15 | 1/2" | 4.8 | 6~100 | 6~100 | 80×55×140 | YSI-15J - AC220V | 1.1 |
YSI-20J | 20 | 3/4" | 7.6 | 6~100 | 6~100 | 90×60×153 | YSI-20J - AC220V | 1.6 |
YSI-25J | 25 | 1" | 12 | 6~100 | 6~100 | 100×68×162 | YSI-25J - AC220V | 2.1 |
YSI-32J | 32 | 11/4" | 20 | 6~80 | 6~80 | 110×80×170 | YSI-32J - AC220V | 2.6 |
YSI-40J | 40 | 11/2" | 30 | 6~80 | 6~80 | 130×90×185 | YSI-40J - AC220V | 3.7 |
YSI-50J | 50 | 2" | 48 | 6~80 | 6~80 | 150×108×201 | YSI-50J - AC220V | 5.3 |
YSI-series flange(NC)high pressure solenoid valve dimension table
model | PN=2.5MPa GB/T9113.1-2000 flange connection dimension (mm) | weight (Kg) |
DN | L | D | H | K | d | C | f | n-φ |
YSI—15JF | 15 | 120 | 95 | 175 | 65 | 46 | 14 | 2 | 4-φ14 | 2.5 |
YSI—20JF | 20 | 130 | 105 | 188 | 75 | 56 | 16 | 2 | 4-φ14 | 3.5 |
YSI—25JF | 25 | 140 | 115 | 210 | 85 | 65 | 16 | 2 | 4-φ14 | 4.3 |
YSI—32JF | 32 | 160 | 140 | 218 | 100 | 76 | 18 | 2 | 4-φ18 | 6.4 |
YSI—40JF | 40 | 170 | 150 | 232 | 110 | 84 | 18 | 2 | 4-φ18 | 7.8 |
YSI—50JF | 50 | 200 | 165 | 258 | 125 | 99 | 20 | 2 | 4-φ18 | 11.1 |


Company Profile
Yuyao No. 4 Instrument Factory
Founded in 1965, Yuyao No.4 Instrument Factory has been a professional manufacturer of solenoid valves and has enjoyed an excellent reputation through the past more than
50 years in China. With the introduction of foreign cutting-edge
technology, and the sustained innovation and self-improving, the
company has mastered the key technology and is keeping pioneer
position in the field of fluid solenoid valve.
The company is certified by the ISO9001:2000 and the GJB9001A-2001
military quality system, we have production license and 3C certificate for Ex-proof products, many products have passed the CE、ROHS、ACS、FDA、UL etc. international certifications. The company participated
in drafting the national safety standards for GB30439.6—2014
solenoid valve, and is authorized to manufacture customized
solenoid valves for the military products.
The company is equipped with superior production machines, advanced
process flows, complete testing systems; the products have
sophisticated structure, reliable performance, fine outlook and
reasonable price, covering over 40 series and 3000 specifications,
having been exported to more than twenty countries and areas, such
as USA, France, UK, Germany, Italy, Australia, Russia, Taiwan, and
the middle east countries etc., and our distributors spread all
over the whole country.
The company owns high quality staff and professional R&D group,
with strict and innovative attitude, we can customize products to
cater specific requirements of customers, and provide fast-response
after-sale support. We persist in “customer-first, integrity,
human-oriented, excellence”, offering satisfied products and
service to the customers on-promise, enhancing the “Round Star”
brand.
Sincerely welcome to visit our company, looking forward to having a
nice cooperation and common development.
