
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.