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For common parts, we can deliver the goods within 3 days
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Spirax Sarco SP7-10 SP7-11 SP7-12 Smart Valve Positioners With EZ Control Valve
Price:
Negotiation
MOQ:
1 - 9 Sets
Delivery Time:
Negotiable
Brand:
spirax sarco
Product Description
Product Description
spirax sarco SP7-10, SP7-11 and SP7-12 Smart valve Positioners with EZ control valv
The SP7-1* smart positioner can control any valve that is actuated by a linear or rotary pneumatic actuator that conforms with NAMUR. It guarantees an exact proportionality between the stroke of the valve and the value of the electrical input signal (mA) into the positioner. The SP7-1* has a cast aluminium housing that is also treated for outdoor installation. The unit can be mounted onto pneumatic actuators either rotary -57 to 57° or linear -28 to 28°. The positioner can be supplied without a mounting kit or with a kit for rotary or linear actuators, the type must be specified when ordering. The positioner can be supplied without a pressure gauge block or with a pressure gauge block, the type must be specified when ordering.
The positioner is supplied for a control signal in mA and for an air supply pressure from 1.4 to 6 bar. The SP7-1* positioner can also be used to reverse the action of the control signal. The positioner has a local communication interface (LCI) as standard in the SP7-10. Additionally, a ‘HART® communication’ option for communication via the 20 mA signal is available. Both communications are based on the HART® Protocol. Alternatively, HART®5 or HART®7 are available. Other available options are the SP7-11 with a PROFIBUS PA module or the SP7-12 with FOUNDATION Fieldbus module. In addition to its input for the analog position set point, the positioner is equipped with a digital input which can be used to activate control system functions in the device. A digital output allows you to output collective messages (alarms/faults). Note: Throughout the document SP7-1* is written where the information is relevant to all versions; the SP7-10, SP7-11 and SP7-12. Where the information is specific it will be referenced as the version appropriate
Specifications
Special features
The Valve Signature, which is displayed via the DTM, is used to
detect the static and sliding friction of the valve. The valve
hysteresis is also displayed, for this purpose the various
positions across the entire valve range are approached in steps.
When the Valve Signature starts, the entire valve operating range
for the ‘open and closed directions’ is covered in an uncontrolled
manner (open loop test). During this process, the pressure
patterns of the diagnostic pressure sensors are recorded using a
configurable number of 10 to 100 positions.
For each step, there is a 4-second delay so that the valve can set
itself after the required position has been reached.
Once the signature test is complete the parameters selected by
the user are loaded from the device and displayed.
Consequently, excessively heavy movement of the valve is
displayed as a greater hysteresis.
Additionally, the position and signal waveform for the optional
Universal Input can also be recorded.
The Valve Signature of a new or refurbished assembly provides
valuable data as the baseline performance for comparison of
valve and actuator condition as part of routine valve
performance verification.
Detailed Images
Packing & Delivery
Our Service
Our Company
Xiangjing(Shanghai)Mechanical and Electrical Tech. Co., Ltd.
Xiangjing(Shanghai)Mechanical and Electrical Tech. Co., Ltd. is mainly engaged in the technical development, technical consultation, technical service, installation and commissioning services of marine engineering, oil and gas, petrochemical, water conservancy and hydropower, thermal power generation and other mechanical and electrical equipment products; Well-known brand fluid control valves; instrumentation; hydraulic pipe fittings; bearings; seals; industrial automation and other high-tech enterprises.
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Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Xiangjing (Shanghai) M&E Technology Co., Ltd
Location
Building 6, 98 Fulianyi Road, Yanghang Town, Baoshan District
Contact Person
Edward Zhao









