SP 4000 Self-Operated Cage Type Pressure Regulating Valve Factory

Convenient Combination

Normalized modular design allows the changeover between downstream and upstream pressure control mode, different regulation ranges and operating temperature can be performed with the replacement of extremely few parts.

Overload Safety

The safety shall be ensured under any circumstances. The self-operatedregulator allows medium to enter the actuator, So the overload of the system usually badly damagedthe regulator, The overload protection mechanism of SP4000 regulator can safely bear the overloadpressure one or few dozens times higher than the upper limit pressure of the regulation range.The overload pressure can reach the nominal pressure of the valve in most configurations.

Reliable Sealing

The valve stem of SP4000 regulator is a long bellow structure. Sealing O-ring is used as a back-up sealing method, which provides an extremely reliable sealing for valve stem.

High Accuracy

The friction of bellow stem is far lower than conventional parking structure.The optimally designed spring and actuator will definitely find their best combination for process pressure, which makes the regulator have very high overall control accuracy

Easy Adjustment

The adjustment of pressure setting can be easity done by turning ofadjusting nut. The adjustment operation is more easy andfast due to the elimination ofconventional pillars structure.

Strong Adaptability

There are multiple actuator types, valve plug structures, rubberpartsmaterials can choose to meet the operational requirements of different medium andtemperatures.

Balanced Valve Plug

The valve plug with O-ring balance structure can be used tominimized the influuence of the pressure difference on the non-balance of the valve stem andguarantee the pressure withstanding performance and precision of the pressure regulatingvalve.

Low Leakage

Single-seat plug has very low leakage during the closing ofthe regulatorThe soft-sealed plug can completely shut off the flow and make the system enter into aholding-pressure state.

Stainless Actuator

As an important part of the reguator, the actuator is made of stainlessplate to ensure its high pressure-strength and long service life.

Easy Maintenance

The selection criteria of the every structure of the SP4000regulator is to make sure the most convenient installation and maintenance while ensuring theperformance requirements are met.

The top-mounted push-down installation method allows you to inspect and maintain theinternal parts without any special tools and without remove the valve body.

The bonnet central alignment method is adopted to avoid all unnecessary repeat matchingoperation. The internal part has sufficient clearance to make sure itself can be easity taken out or putin. The dissembling of the internal parts can be easily performed even the carbon steel regulatorrusts after long-term operation.

Universal Parts

SP4000 regulator has estremely high parts universality with the wholeself-operated products series manufactured by our company. it helps to reduce the inventoryof spare parts.