ECOVOLTA Gateway Singapore group company
Metro tunnel ventilation · India

Moving air through India's metro tunnels

Ecovolt Renewables supplies tunnel ventilation fans, jet fans, dampers, silencers and air handling units to metro rail contractors across India. We are the India company of Gateway Construction & Engineering, Singapore, and the authorised distributor for the whole of India for Zhejiang Shangfeng Special Blower Industrial Co., Ltd.

Parent: Gateway, Singapore Pan-India distributor Smoke exhaust 280 °C / 60 min
Shangfeng U series guide vane axial fan with blue airfoil blades
Shangfeng U series guide vane axial fan
Applications

Where this equipment works

Tunnel ventilation keeps air moving in normal service and controls smoke in an emergency.

Booster fans mounted above the trackway in an underground metro tunnel
Underground metroBooster fans above the trackway push air along the running tunnel.
Three jet fans mounted at the crown of a road tunnel
Road tunnelsJet fan banks at the tunnel crown provide longitudinal ventilation.
Jet fans in a curved road tunnel with traffic light trails
Emergency smoke controlReversible fans steer smoke away from the escape route.

Photos show typical installations of this type of equipment.

Our group

Singapore engineering, delivered in India

Ecovolt is a group company of Gateway Construction & Engineering Pte Ltd, a Singapore MEP and engineering firm with more than 15 years of work on Land Transport Authority MRT projects. That station experience shapes how we specify, supply and support ventilation equipment for Indian metro lines.

Gateway Construction & Engineering Pte Ltd logo
Parent company

Gateway Construction & Engineering Pte Ltd

MEP and ventilation contractor with an LTA MRT track record in Singapore.

India company

Ecovolt Renewables Pvt Ltd

Sales, technical submittals, commercial terms and site coordination for Indian metro projects.

Chennai, Tamil Nadu
Manufacturing partner

Zhejiang Shangfeng Special Blower

Fan and air-handling manufacturer. Ecovolt is its authorised distributor for the whole of India.

Zhejiang, China · en.sz-gf.com.cn
15+years in Singapore engineering
13MRT stations delivered by Gateway
SG · INteams in Singapore and Chennai
MSMEUdyam-registered Indian enterprise
Manufacturer

Authorised distributor for the whole of India

Ecovolt is appointed by Zhejiang Shangfeng Special Blower Industrial Co., Ltd. as its authorised distributor for all of India. Shangfeng manufactures axial and centrifugal fans, fire-fighting smoke exhaust fans, fire dampers and air handling units, and supplies tunnel ventilation equipment for metro projects.

Pan-India authorised distributor

See Shangfeng metro and tunnel references
Visit the Shangfeng website

Zhejiang Shangfeng Special Blower Industrial Co., Ltd. logo
CCCF certifiedfire-fighting fans and fire dampers
Explosion-proofcertified fan models available
280 °C / 60 minhigh-temperature smoke exhaust rating
1.5 hfire damper rating to GB/T 15930
Inside Shangfeng
Shangfeng manufacturing plant with a large axial fan casing on the shop floor
Manufacturing plantA large axial fan casing on the shop floor.
Roof fans on display in the Shangfeng product showroom
Product showroomRoof fans from the building ventilation range.
Impellers and fan components on display in the Shangfeng innovation showroom
Innovation showroomImpellers and fan components on display.
Shangfeng job references

Metro and tunnel projects supplied by Shangfeng

A partial list of metro and tunnel ventilation projects from the manufacturer's job reference. These are Shangfeng's projects, and they include several in Singapore.

13overseas projects7in Singapore25in China

Overseas

ProjectSystem
Singapore
Marina Line Phase 1Metro · TVF
Circle Line Stage 1, additional fansMetro
Circle Line Stage 4 & 5Metro
Mandatrock TunnelTunnel
Harbour Drive Cable TunnelTunnel
Senoko Cable TunnelTunnel
Fort Canning TunnelTunnel
Hong Kong
TST Line East Rail HCC300Metro · TVF
Eagle's Nest Height TunnelTunnel
Kowloon Southern LinkTunnel
Korea
Pusan MetroMetro · TVF, UPE/OTE
Thailand
Bangkok AirportMetro
Taiwan
Beiyi Highway tunnel ventilationTunnel

China

  • Zhejiang Anji Tian-huang-ping Hydro Power Plant Cable TunnelTunnel
  • Yellow River Xiao-Lang-Di Hydro Power Plant Cable TunnelTunnel
  • Shanghai Metro Line 1 ExtensionMetro
  • Shang San Xian Highway Tunnel Ventilation, ZhejiangTunnel
  • Zhejiang Yanjuling Tunnel VentilationTunnel
  • Zhejiang Huangniling Tunnel VentilationTunnel
  • Shenzhen Metro Tunnel VentilationMetro
  • Shenzhen Metro UPE/OTEMetro
  • Guangzhou Metro Tunnel VentilationMetro
  • Shanghai Dapulu Road TunnelTunnel
  • Nanjing Metro South-North Line 1Metro
  • Shanghai Metro Mingzhu Line 2Metro
  • Nanjing Xuanwuhu TunnelTunnel
  • Fujian Zhangzhao HighwayTunnel
  • Fujian Luochang HighwayTunnel
  • Zhejiang Sanduling TunnelTunnel
  • Long-Li Expressway Xi-Kou Road TunnelTunnel
  • Shanghai Metro Phase 1Metro
  • Tianjin Metro Line 1Metro
  • Zhejiang Zhou-Shan Eastern Harbour Cross TunnelTunnel
  • Qin-Shan Nuclear Power Plant Phase 2Tunnel
  • Yuen-Tai-Weng Expressway Yan-Dun-Shan Road TunnelTunnel
  • Jin-Li-Weng Expressway Bian-Fu-Shan Road TunnelTunnel
  • Jin-Li-Weng Expressway Niou-Tieng-Ling Road TunnelTunnel
  • Beijing-Zhuhai Expressway Guang Dong South Line Road TunnelTunnel

Source: Shangfeng job reference, "Metro/Tunnel and the other project list" (partial). TVF = tunnel ventilation fan. UPE/OTE = under-platform and over-trackway exhaust.

Product range

Tunnel ventilation equipment

Supplied to project BOQ and tender specifications, with performance data, test certificates and factory acceptance testing arranged with the manufacturer.

Shangfeng KBZ adjustable blade axial fanTVF

Tunnel Ventilation Fans

Large axial fans for normal ventilation and emergency smoke extraction from tunnel and station shafts.

  • Aluminium alloy or PAG airfoil impeller
  • Blade angle set to the duty point
  • Rated for continuous running
AMCA 210 · BS 4718 · NFPA 130
Shown: KBZ adjustable blade axial fan
Shangfeng HTF-I fire-fighting smoke exhaust axial fanOTE

Smoke Exhaust & Over-Trackway Fans

High-temperature exhaust fans for platform trackway heat and smoke removal at underground stations.

  • 280 °C for 60 minutes
  • CCCF and explosion-proof certified
  • Single or dual speed, VFD optional
AMCA 210 · IEEE 112 motors
Shown: HTF-I fire-fighting smoke exhaust fan
SILENCER · FAN · SILENCER REVERSIBLE THRUST → TBF

Tunnel Booster & Jet Fans

Jet fans that add longitudinal thrust along the running tunnel to steer airflow and smoke.

  • Reversible thrust
  • Integral silencers both ends
  • High-temperature rated
Thrust tested · NFPA 130
Illustration
Shangfeng fire dampers in three sizesTVD

Tunnel Ventilation Dampers

Motorised and fire dampers to isolate and route airflow between fans, shafts and tunnels.

  • Multi-blade, actuator driven
  • 1.5 h fire rating to GB/T 15930
  • Temperature sensor option
CCCF certified · BS 476
Shown: Shangfeng fire valve range
SPLITTER BAFFLES · DYNAMIC INSERTION LOSS SIL

Silencers & Sound Attenuators

Rectangular TVS silencers and ECS duct attenuators to meet station and portal noise limits.

  • Sized to fan and duct openings
  • Tested insertion loss data
  • Galvanised or stainless casing
ASTM E477 · ANSI S12.34
Illustration
Shangfeng SK series modular air handling unit, cut-away viewAHU

Air Handling Units

Modular air handling units for station environmental control systems, built to project specification.

  • Multi-stage filtration
  • Temperature and humidity control
  • EC fan wall option
Built to project specification
Shown: SK series air handling unit
How we work

From tender to commissioning

We work with the MEP contractor on each package, from the first technical query through to delivery at site.

Technical proposal

Clause-by-clause compliance against the tender specification and BOQ, with open items flagged early.

Quotation

Clear CIF pricing in USD or INR, delivery schedule and commercial terms.

Manufacture & FAT

Production tracking and factory acceptance testing with the manufacturer.

Delivery & support

Shipping, documentation, and installation and commissioning support at site.

Contact

Talk to our team

Send us your tender documents, BOQ or a technical query. We reply with a compliance review and quotation.

Mobile (India)
+91 98414 56788WhatsApp
Email
ecovolt.india@gmail.com
India office
Ecovolt Renewables Private Limited
Plot No. 307, Fern Brook, Gayathri Nagar,
Medavakkam, Kanchipuram, Tamil Nadu 600 100
Parent company
Gateway Construction & Engineering Pte Ltd
Singapore · gatewayconstruction.sg