CQCY (Chongqing Chuanyi) control valves, PDS pressure transmitters, field instruments & PAS300 DCS

Supply industrial control valves, pneumatic and electric actuators, PDS smart pressure transmitters, flow and radar level instruments, PAS300 DCS modules and genuine OEM spare parts from Chongqing Chuanyi Automation Co., Ltd.

CQCY Globe, Cage-Guided and Rotary Control Valves ZJHM, ZJHP, ZJHN, ZJHQ

Manufactured by Chongqing Chuanyi Control Valve Co., Ltd., the ZJHM, ZJHP, ZJHN and ZJHQ series single-seated, double-seated and balanced cage-guided control valves regulate high-pressure steam, hydrocarbons and corrosive fluids across refineries and thermal power units.

Nominal bore sizes from DN 15 to DN 600 (1/2" to 24"), pressure ratings up to PN 420 (Class 2500)
Body metallurgy: WCB, WCC, CF8, CF8M, CF3M, chrome-moly steels, Monel, Hastelloy C and titanium
Multi-stage anti-cavitation and low-noise labyrinth trims hard-faced with Stellite alloy
Spare parts: valve plugs, seat rings, balanced cages, metal bellows, PTFE and graphite packings

ZHA/ZHB Pneumatic Actuators, C/M/R/N Electric Actuators and HVP/HEP Positioners

CQCY actuation and valve automation packages deliver high-thrust modulating and on-off control for linear and quarter-turn valves, integrating seamlessly into plant DCS and SIS loops via HART, Profibus-PA and Foundation Fieldbus protocols.

ZHA/ZHB multi-spring rolling diaphragm and piston pneumatic actuators for fail-open or fail-close duty
Flameproof intelligent multi-turn and part-turn electric actuators of the C, M, R and N families
HVP-1000/2000, HEP and YVP smart digital valve positioners with auto-calibration and Partial Stroke Test
Spare parts: elastomer diaphragms, actuator control boards, positioner piezo modules, limit switches

PDS Smart Gauge, Absolute and Differential Pressure Transmitters

Engineered by Chongqing Silian / Chuanyi, the PDS transmitter platform (PDS403, PDS423, PDS443, PDS463, PDS473, PDS803, PDS873) combines monocrystalline silicon sensors with digital temperature matrix compensation for custody transfer and safety-instrumented systems.

Reference accuracy up to ±0.04% of calibrated span with 10-year long-term stability of ±0.1%
Measurement ranges spanning 100 Pa micro-differential draft to 70 MPa gauge, static pressure up to 40 MPa
Remote capillary and flush flange diaphragm seals rated for process temperatures up to +400 °C
Spare parts: sensor capsules, 316L/Hastelloy/Tantalum diaphragms, HART electronics modules, LCD displays

EMF Electromagnetic, LUGB Vortex, CMF Coriolis Mass Flowmeters and LZ Rotameters

CQCY flow instrumentation covers conductive slurries, acids, saturated and superheated steam, compressed gases and liquid hydrocarbons across water treatment, chemical processing and custody transfer stations.

EMF/MF electromagnetic flowmeters (DN 10–2000) with PTFE/PFA/PU liners and Hastelloy, titanium or tantalum electrodes
LUGB/VFM multivariable vortex flowmeters with integrated PT compensation for steam up to +350 °C
CMF/DMF Coriolis mass flowmeters (±0.1% mass accuracy, ±0.0005 g/cm³ density) and LZ metal tube rotameters
Spare parts: remote signal converters, vortex piezo probes, lined flow tubes, excitation boards

WR Thermocouples, WZ RTDs, B-Series Barstock Thermowells and TTS Transmitters

Manufactured by Chongqing Chuanyi 17th Factory Co., Ltd., CQCY temperature assemblies serve supercritical utility boilers, cracking furnaces, coal gasifiers and nuclear islands under extreme thermal and erosive loads.

WRN (Type K), WRE (E), WRP (S), WRR (B) and WRK (N) thermocouples rated up to +1800 °C
WZP platinum RTDs (Pt100, Pt1000 Class AA/A/B, 3-wire and 4-wire) covering -200 °C to +600 °C
Solid-drilled B-series barstock thermowells in 316L, 310S, Inconel 600, Hastelloy C-276 and cermet
Spare parts: spring-loaded MIMS sensor inserts, Ex d connection heads, TTS/SBW HART head transmitters

MPS7000 80 GHz FMCW Radars, MGS Guided Wave Radars and MB Magnetic Level Gauges

CQCY level instrumentation delivers millimeter-grade continuous profiling and SIL-rated point level switching for high-pressure vessels, chemical storage tanks, oil-water separators and dusty bulk silos.

MPS7000 80 GHz FMCW non-contact radar transmitters: 3° narrow beam, 120 m range, ±1 mm accuracy
MGS guided wave radars with rod, cable and coaxial probes for total level and liquid interface up to 40 MPa / +400 °C
MB bypass magnetic level indicators with reed-chain transmitters and VS piezoelectric tuning fork switches
Spare parts: PTFE/PEEK lens antennas, replacement GWR probes, titanium floats, reed switch transmitters

PAS300 Distributed Control Systems (DCS), SCS100 PLC/SIS Controllers and I/O Modules

CQCY's PAS300 large-scale Distributed Control System and SCS100 compact controller platform provide fault-tolerant process automation for petrochemical complexes, thermal power plants and municipal infrastructure.

Full 1:1 hardware redundancy across main CPU controllers, power supply units and ring Ethernet fieldbuses
Smart I/O cards including HART pass-through AI/AO, isolated DI/DO, direct TC/RTD inputs and 1 ms SOE modules
Channel-level galvanic isolation, real-time self-diagnostics and online hot-swapping without loop interruption
Spare parts: PAS300/SCS100 CPU modules, analog/digital I/O cards, termination baseplates, redundant PSUs

Stress Wave & Vibration Condition Monitoring Systems and Paperless Recorders

CQCY's Intelligent Equipment O&M division provides predictive maintenance systems for compressors, turbines and pumps alongside secondary panel instruments, flow computers and YTH-100 industrial pressure gauges.

High-frequency stress wave sensors and triaxial vibration accelerometers for early bearing and gear fault detection
Edge data acquisition stations and cloud-ready equipment health management software platforms
Multi-channel paperless graphic recorders, steam/gas flow totalizers and YTH-100 contact pressure gauges
Spare parts: vibration and stress wave transducers, signal conditioning units, edge gateways, recorder modules

Equipment identification and CQCY nameplate verification

Field instrumentation and control valves manufactured by Chongqing Chuanyi Automation Co., Ltd. (CQCY, SSE: 603100, Liangjiang New District, Chongqing, China) are custom-built to process pressure, fluid metallurgy and hazardous area classifications.

To order replacement valve trims, transmitter capsules or complete assemblies, provide the full model code and serial number stamped on the stainless steel nameplate.

Verifying the factory build code ensures exact dimensional and protocol compatibility across CQCY subsidiary plants.

ZJHM, ZJHP, ZJHN and ZJHQ control valves and anti-cavitation trims

CQCY Control Valve Co., Ltd. manufactures single-seated, double-seated, cage-guided, eccentric rotary and V-port ball control valves rated from DN 15 to DN 600 and up to ASME Class 2500 (PN 420).

Severe-service labyrinth cages and Stellite hard-faced plugs suppress flashing, cavitation and aerodynamic noise in high-pressure steam and hydrocarbon letdown loops.

We supply complete valve assemblies, replacement plugs and seats, balanced cages, metal bellows seals and live-loaded PTFE/graphite stem packings.

ZHA/ZHB pneumatic actuators, C/M/R/N electric actuators and HVP positioners

Linear and quarter-turn control valves are driven by ZHA/ZHB multi-spring diaphragm actuators, high-thrust piston cylinders and non-intrusive flameproof C, M, R and N series intelligent electric actuators.

Smart electro-pneumatic valve positioners (HVP-1000/2000, HEP-15/16/17 and YVP) provide one-touch auto-tuning, HART/Profibus-PA communication and Partial Stroke Testing (PST).

We deliver replacement reinforced diaphragms, actuator control boards, piezo valve blocks, air filter regulators and limit switch boxes.

PDS smart pressure, differential pressure and level transmitters

The PDS series (PDS403, PDS423, PDS443, PDS463, PDS473, PDS803, PDS873) engineered by Chongqing Silian / Chuanyi delivers ±0.04% reference accuracy and 10-year stability using monocrystalline silicon and capacitive sensing cells.

Capillary and direct-mount diaphragm seal systems in 316L, Hastelloy C-276, Monel and Tantalum isolate transmitters from corrosive media up to +400 °C.

We supply complete PDS transmitters, replacement sensor modules, HART/FF electronics boards, backlit LCD indicators and 3-valve or 5-valve manifolds.

EMF electromagnetic, LUGB vortex and CMF Coriolis mass flowmeters

CQCY flow metering solutions include EMF/MF electromagnetic flowmeters up to DN 2000 for conductive slurries, LUGB multivariable vortex flowmeters for steam up to +350 °C and CMF Coriolis mass flowmeters.

For high-pressure chemical injection and purge lines, LZ all-metal variable area rotameters offer magnetic pointer indication with 4–20 mA HART outputs.

We provide lined flow tubes, replacement vortex piezo sensors, remote signal converters and excitation circuit boards.

WR thermocouples, WZ RTDs, B-series thermowells and TTS transmitters

Chongqing Chuanyi 17th Factory produces mineral-insulated (MIMS) and refractory thermocouples (WRN, WRE, WRP, WRR, WRK up to +1800 °C) and precision platinum RTDs (WZP Pt100/Pt1000).

Solid-drilled B-series barstock thermowells in Inconel 600, Hastelloy C-276, 316L and wear-resistant ceramic sheaths protect sensors in coal gasifiers and CFB boilers.

We supply spring-loaded MIMS inserts, Ex d connection heads and head-mounted or DIN-rail TTS/SBW HART temperature transmitters.

MPS7000 80 GHz radar, MGS guided wave radar and MB level gauges

MPS7000 80 GHz FMCW non-contact radar transmitters feature a narrow 3° beam angle and ±1 mm accuracy over 120 m ranges, unaffected by tank internals or condensation.

MGS guided wave radars measure total level and oil-water interface at pressures up to 40 MPa, complemented by MB magnetic level indicators and VS tuning fork switches.

We supply PTFE/PEEK lens antennas, replacement GWR rod and cable probes, titanium magnetic floats and reed-chain transmitters.

PAS300 DCS, SCS100 controllers and Stress Wave condition monitoring

The PAS300 Distributed Control System and SCS100 controller platform feature full 1:1 redundancy for CPUs, power supplies and industrial Ethernet networks alongside hot-swappable HART I/O modules.

CQCY Intelligent Equipment O&M systems combine high-frequency stress wave and vibration transducers with edge gateways to detect early bearing defects in rotating machinery.

We supply CPU controllers, AI/AO/DI/DO/SOE cards, termination bases, stress wave sensors and multi-channel paperless recorders.

Global export supply, pre-shipment inspection and OEM spare parts

We coordinate factory procurement and international delivery of genuine CQCY field instruments, control valves, DCS cabinets and OEM maintenance kits.

Our engineering team assists with datasheet cross-referencing, valve sizing verification, export packing and multi-modal logistics.

Send us your tag list, process datasheet or instrument nameplate photo to receive a detailed technical and commercial quotation.

Specifications, lead times and pricing for CQCY instruments, control valves and spare parts are quoted individually upon commercial request. Final scope of supply and warranty terms are defined in the supply contract.