
SO-26001、SO-26101、SO-26201 Self-operated Differential Pressure Regulator for Downstream Control
An energy-saving control valve without external energy supply, used for non-corrosive liquids and gases with a temperature of ≤ 200℃. It is a pressure differential control device at the valve outlet. When the pressure differential increases, the valve closes.

SO-26002、SO-26102、SO-26202 Self-operated Differential Pressure Regulator for Upstream Control
An energy-saving control valve without external energy sources, used for non-corrosive liquids and gases with a temperature of ≤ 200℃ and a valve-before differential pressure control device. The valve opens when the differential pressure increases.
An energy-saving control valve without external energy supply, used for non-corrosive liquids and gases with a temperature of ≤ 200℃ for differential pressure control devices. The valve opens or closes when the differential pressure increases.
Low maintenance, direct control of the medium, energy-saving control valve without external energy supply
Stainless steel bellows pressure-balancing type, with small unbalanced force and high sensitivity
Supports internal and external pressure tapping
Wide range of set points, adjustable set points can be conveniently adjusted by adjusting the nut
For high sealing requirements, use soft-sealing valve core
Standard modular design, with high levels of standardization, series, and generalization
Material: WCB、CF8、CF8M
Nominal Size: DN15~250mm
Pressure Rate: PN1.6~PN4.0MPa
Voltage Regulating Range:ZA3:0.1~0.6Mpa、0.015~0.15Mpa、0.05~0.3Mpa、0.01~0.07Mpa、0.005~0.035Mpa
ZA4:0.1~0.5Mpa、0.005~0.12Mpa、0.05~0.25Mpa、0.01~0.06Mpa、0.005~0.035 Mpa
Temperature Range: ≤200℃
Operator: Self-Pressurized
Application range: This is applicable to automatic control systems without (or where driving energy cannot be used) in industrial processes such as water supply, petrochemicals, heating and thermal supply, energy, papermaking, food, and steel production. It is particularly suitable for automatic control system devices in natural gas extraction and transportation or gas transmission.
This series of products features a compact structure, small size, and S-shaped fluid channels. The valve core adopts a pressure-balancing structure, with high accuracy of the flow characteristic curve and the ability to achieve a larger CV. It can be quickly replaced, is stable and reliable, and is easy to maintain. A smaller actuating force can control a high pressure difference. There is a sealing ring between the valve core and the valve cage, significantly reducing the leakage. It is equipped with the RSMF series multi-spring pneumatic diaphragm actuator, which has a large thrust, strong steel strength, sensitive action, high-precision positioning, fast response, convenient and sturdy, and a long service life.
Stop Check Valve, A multi-purpose valve that functions as both a stop valve and a check valve. Its structure is similar to that of a globe valve, but the stem and disc are not fixed. When the stem is lowered and the disc is pressed tightly on the seat, it acts as a stop valve; After the stem rises, the check valve acts. On lines that require both a stop valve (or gate valve) and a check valve (such as the outlet of a water pump), using a stop check valve can save installation costs and space. In the opening and closing process, because the friction between the valve disc and the sealing surface of the valve body is smaller than that of the gate valve, it is more wear-resistant.
The Side Entry Cryogenic Trunnion Mounted Ball Valve fixed ball valve is a type of fixed ball valve that adopts an upper mounted structure. The ball is installed and disassembled through the upper part of the valve body, and can work stably under ultra-low temperature conditions. When closed, the valve stem drives the ball to rotate, making the hole on the ball perpendicular to the valve body channel, thereby cutting off the medium; When opened, the valve stem drives the ball to rotate 90 °, aligning the hole on the ball with the valve body channel, and the medium can pass through.