Guangqi Valve
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Product range

Valve products, actuators and spare parts

Seven families covering 363 model designations and 7,580 specification records, from DN15 to DN1200 and up to PN320 / Class 900. Sizes, materials and actuation are confirmed against your drawing before production.

This catalogue shows configuration and specification only. Prices, lead times and payment terms are issued in a formal quotation after a complete enquiry.

Ball valves

Ball valves

Fast quarter-turn shut-off, DN15 to DN250

Full-bore quarter-turn shut-off with low flow resistance and reliable sealing. Soft-seated valves suit gas, water and general chemical service; metal-seated valves take higher temperatures and abrasive media. Manual, pneumatic and electric versions are assembled to order.

  • 2-piece and 3-piece bodies, flanged, wafer and threaded ends
  • High-platform pad for direct actuator mounting
  • V-port control versions for throttling duty
  • PTFE-lined and PVC bodies for corrosive and low-pressure service
  • Sanitary clamp-end bodies for food and pharmaceutical lines
  • WCB carbon steel, CF8 (304), CF8M (316), CF3M (316L) and PVC
81Model designations
1,101Specification records
DN15 – DN250Size range
Manual · Pneumatic · ElectricOperation
Body materialsWCB · CF8 (304) · CF8M (316) · CF3M (316L) · PVC
Pressure ratingsPN16 · Class 150 · Class 300
StandardsGB · HG · API / ANSI
Example designationsQ41F-16C · Q41F-16P · Q41F-150LB · Q41F-300LB · Q644F / Q641F actuated
Butterfly valves

Butterfly valves

Compact and economical from DN40 to DN1200

The economical choice for large-diameter isolation and throttling. Triple-offset metal-seated valves hold a hard, fire-safe seal at higher temperatures; lined bodies handle corrosive media at low pressure. Water, HVAC and large-bore process lines are the typical duty.

  • Wafer, lug and flanged bodies with triple-offset metal seating
  • Laminated and hard-faced sealing for higher temperature service
  • Lever, worm-gear, pneumatic and electric operation
  • PTFE-lined bodies for aggressive chemical service
  • PVC bodies for water treatment and low-pressure lines
  • WCB carbon steel, CF8 (304) and CF8M / 316L stainless steel
35Model designations
493Specification records
DN40 – DN1200Size range
Manual · Worm gear · Pneumatic · ElectricOperation
Body materialsWCB · CF8 (304) · CF8M (316L) · PVC
Pressure ratingsPN10 · PN16 · PN25
StandardsGB · API / ANSI face-to-face available
Example designationsD343H-16C · D343W-16P · D373H-16C · D363H-16C · D643 / D673 actuated
Gate valves

Gate valves

Full-bore isolation with minimum flow resistance, DN15 to DN1200

Full-bore straight-through isolation with the lowest pressure drop of the common valve types, for water, oil, gas and steam mains. Bodies come in cast steel and stainless steel, with a bolted bonnet for maintenance and a rising or non-rising stem as required.

  • Bolted-bonnet cast steel and stainless steel bodies
  • Rising-stem and non-rising-stem configurations
  • Flexible wedge and solid wedge discs
  • Vacuum-service and chrome-molybdenum versions
  • Petrochemical and general-purpose standards
  • WCB, CF8, CF8M, CF3, CF3M, WC6 and alloy steels
69Model designations
2,008Specification records
DN15 – DN1200Size range
Manual · Worm gear · Pneumatic · ElectricOperation
Body materialsWCB · CF8 · CF8M · CF3 · CF3M · WC6 · 20CrMoV
Pressure ratingsPN10 – PN320 · Class 150 – 900
StandardsGB · HG · API 600 · API 603
Example designationsZ41H-16C · Z41W-16P · Z40W-150LB · Z40W-300LB · Z41H-25C
Globe valves

Globe valves

Tight sealing with accurate flow regulation, DN10 to DN800

The valve to choose when the flow has to be regulated rather than simply stopped. The disc moves along the seat axis, so the opening can be trimmed accurately. Steam, condensate, compressed air and boiler feedwater are the classic duties.

  • Straight, angle and Y-pattern bodies
  • Renewable seat rings and easily maintained sealing faces
  • Bolted bonnet with packed gland, or bellows seal
  • Designed for steam, condensate and high-temperature water
  • Chrome-molybdenum and alloy-steel versions for power stations
  • WCB, CF8, CF8M, CF3, CF3M, WC6 and 12Cr1Mo1V
75Model designations
1,911Specification records
DN10 – DN800Size range
Manual · Worm gear · Pneumatic · ElectricOperation
Body materialsWCB · CF8 · CF8M · CF3 · CF3M · WC6 · 12Cr1Mo1V
Pressure ratingsPN16 – PN320 · Class 150 – 900
StandardsGB · HG · ASME B16.34 · BS 1873
Example designationsJ41H-16C · J41W-16P · J41W-150LB · J41W-300LB · J41H-25C
Check valves

Check valves

Automatic backflow protection, DN15 to DN800

Non-return protection for pump discharge, boiler feed and pipeline service. The disc opens on forward flow and closes on reversal without any external drive or operator attention, protecting pumps, compressors and downstream equipment.

  • Swing, lift and dual-plate configurations
  • Horizontal and vertical installation options
  • Bolted cap for in-line inspection and service
  • Metal-seated and soft-seated versions
  • Suited to pump discharge and boiler feed duty
  • WCB, CF8, CF8M, CF3 and CF3M
64Model designations
1,828Specification records
DN15 – DN800Size range
Automatic, no actuator requiredOperation
Body materialsWCB · CF8 · CF8M · CF3 · CF3M
Pressure ratingsPN16 – PN100 · Class 150 – 900
StandardsGB · HG · ASME B16.34 · BS 1868
Example designationsH41H-16C · H44W-16P · H44H-150LB · H42H-16C · H44W-300LB
Pneumatic actuators

Pneumatic actuators

AT and GT series rack-and-pinion actuators

Rack-and-pinion quarter-turn actuators for ball and butterfly valves, in double-acting and spring-return versions. The extruded aluminium body, hard-anodised bore and polyester-coated exterior suit outdoor and process-plant installation, with a mounting pattern for standard valve top flanges.

  • AT series in single-acting (spring return) and double-acting versions
  • GT series double-acting rack-and-pinion actuators
  • Hard-anodised extruded aluminium body with polyester coating
  • NAMUR interface for solenoid valves and switch boxes
  • Adjustable travel stops at both ends of the stroke
  • AT52 through AT210, with matching GT models
24Model designations
70Specification records
AT52 – AT210Size range
Double-acting and spring-return single-actingOperation
Body materialsExtruded aluminium body, hard-anodised bore
Pressure ratingsAir supply 4–8 bar, typical
StandardsNAMUR mounting interface for accessories
Example designationsAT52 · AT63 · AT105 · AT125 · AT160 · AT190 · AT210
Accessories and spare parts

Accessories and spare parts

Solenoid valves, positioners, filter regulators and valve spares

The parts that make an actuated valve work, and the parts that keep it working: solenoid valves, limit switch boxes, positioners, filter regulators, mounting brackets, seats, handles and actuator spares. Supplied with the valves or separately.

  • Solenoid valves, 4M210 and 4M310 series, including explosion-proof versions
  • Limit switch and position indicator boxes, APL210 / APL410 / APL510
  • Electro-pneumatic positioner, ITS-300
  • Filter regulator with brass or metal bowl, AFC2000 / AFR2000
  • Mounting brackets, L-type brackets and couplings
  • Ball valve seats (PPL), handles and actuator spare parts
15Model designations
169Specification records
Fits DN15 – DN400 valve platformsSize range
Pneumatic control accessoriesOperation
Body materialsAluminium · Brass · Stainless steel · PPL
Pressure ratingsAir supply 4–8 bar, typical
StandardsNAMUR and ISO 5211 interfaces
Example designations4M210-08 · 4M310-08 · APL210 · APL410 · APL510 · ITS-300 · AFR2000

Cross-cutting capabilities

Families that cut across the standard range and are quoted to your medium, temperature and connection standard.

Lined and anti-corrosion

PTFE-lined ball and butterfly valves for acids, alkalis and other corrosive media, with the lining bonded to the body bore and disc.

7 Model designations

Sanitary and clamp-end

Clamp-end and three-way sanitary ball valves with polished contact surfaces for food, beverage and pharmaceutical lines.

2 Model designations

PVC plastic valves

PVC ball and butterfly valves for water treatment and low-pressure corrosive service, with socket and union ends.

4 Model designations

V-port control ball valves

V-notched ball for throttling and control duty where a standard full-bore ball valve would be too coarse.

8 Model designations

High-temperature integral

Integral-body ball valves with extended or finned stems for high-temperature and thermal-oil service.

4 Model designations

API / ANSI dimension

Valves built to API 600, API 603, ASME B16.34, BS 1873 and BS 1868 face-to-face and flange dimensions for replacement duty in imported equipment.

60 Model designations

Not sure which valve fits the service?

Give us the medium, pressure, temperature, size and connection standard. Our engineers confirm the valve type, trim material and actuation, and send a specification together with the quotation.

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