最大口径
C504/C509 认证
Water 项目
饮用水认证
供水和污水系统要求阀门具有耐腐蚀性、气泡级密封以及在地下和水下应用中数十年的免维护服务。
Chlorinated water, seawater, and wastewater accelerate corrosion. HGZK offers ductile iron with fusion-bonded epoxy coating, 316L stainless steel, duplex SS, and rubber-lined valves for full protection against aggressive water chemistries.
Valves in buried water mains must operate after decades underground. HGZK resilient-seated gate valves feature epoxy-coated bodies, stainless steel stems, and O-ring seals rated for 50-year buried service life per AWWA C509.
Potable water valves must meet strict health standards. HGZK uses WRAS/NSF 61 approved elastomers and coatings. Zero-lead bronze trim and EPDM rubber ensure safe drinking water quality.
从水源到龙头的完整阀门解决方案。
Intake screens, raw water pumping, transmission mains
Double-flanged butterfly valves up to DN3000 for raw water intake. Rubber or metal seated, AWWA C504 compliant. Electric actuator with battery backup for power failure protection.
Tilting disc or nozzle check valves with hydraulic dampers. Controlled closure eliminates water hammer in long transmission mains. Sizes up to DN2400.
316L stainless steel construction for seawater/raw water intakes. Full-bore design minimizes head loss. Manual gearbox or electric actuator operation.
Coagulation, sedimentation, filtration, disinfection, sludge handling
Butterfly and resilient-seated gate valves for sand/membrane filter isolation. Pneumatic actuator for automated backwash sequencing. Position feedback for SCADA integration.
PVC/CPVC/PVDF ball and diaphragm valves for coagulant, flocculant, and chlorine dosing. Chemical-resistant materials. Precision flow control with electric actuators.
Knife gate valves and pinch valves for sludge transfer. Full-bore design prevents clogging. Pneumatic/hydraulic actuation with abrasion-resistant sleeves.
Distribution network, pumping stations, reservoirs, RO desalination, water reuse
Resilient-seated gate valves with non-rising stem for buried service. O-ring sealed bonnet and thrust bearing. Indicator post or valve box options.
Super duplex stainless steel (2507) ball and butterfly valves for seawater RO. High-pressure Class 600/900 design. Resistant to 70,000 ppm TDS brine service.
High-cycle pneumatic ball valves for MBR/cassette systems. 316L SS with PTFE seats rated for 1 million+ cycles. For advanced wastewater reclamation plants.
AWWA C504/C509 - FBE Coated - Buried Service
Ductile iron body, full EPDM encapsulated wedge. Non-rising stem, O-ring seals. AWWA C509/C515 for buried water mains DN50-DN1200.
Ductile iron with EPDM/NBR replaceable seat. Self-locking gearbox. AWWA C504 Class 150B. DN200-DN3000.
Combination air valves for water transmission. Large orifice for pipeline filling/draining. Compact body design for valve chamber installation.
Water Hammer Prevention - Surge Protection - SCADA
Short face-to-face, low head loss design. Hydraulic damper for controlled closure. DN200-DN2400 for raw water and cooling water pumps.
Hydraulically operated surge relief. Opens on low-pressure transient to prevent column separation. Adjustable set point for water distribution networks.
Pilot-operated diaphragm type for distribution pressure management. Constant downstream pressure regardless of inlet fluctuations.
Super Duplex 2507 - 316L - Titanium - RO Service
Super duplex 2507 or 316L construction. PTFE/PEEK seats. Class 600/900 for seawater reverse osmosis membrane trains.
High-cycle pneumatic ball valves for ERD systems. Ceramic or tungsten carbide ball/seat. Rated 2 million+ cycles.
PVC/PP/PVDF body with PTFE/EPDM diaphragm. For acid, caustic, and chlorine chemical feed systems in water plants.
SCADA Integration - Remote Monitoring - Leak Detection
IP68 submersible actuators for valve pit installation. Modbus RTU/TCP communication to water SCADA. Solar-powered options for remote sites.
Electronic pressure controllers with time/flow-based modulation. Reduce NRW and pipe bursts. Built-in data logging for DMA analysis.
IoT-enabled valve position monitoring. Cellular/LoRaWAN data transmission. Battery-powered with 5+ year life for network monitoring.