Dam, Reservoir, Hydropower and In-line Flow Control Valves

Larner-Johnson
Flow Control Valve

(Plunger or Needle type)

Series 3137:
Inline-Regulating Series 3168:
Pressure Sustaining Series 3078:
Angle Pattern Float

Size:
3" - 100";
DN15 - DN2500

Material:
Ductile iron,
Cast Steel &
Aluminium Bronze

Pressure Rating:
Up to 50 bar

Medium Velocity Discharge Capability:
Up to 12m/sec

Fixed Cone Free Discharge Valve

Series 3300

Size:
8" - 158";
DN200 - DN4000

Material:
Ductile iron,
Fabricated Steel &
Stainless Steel

Pressure Rating:
Up to 16 bar

High Velocity Discharge:
Up to 25m/sec

High Discharge Capacity:
k=1.7

Metal Seated
Parallel Faced Gate Valve

Series 3411

Size:
36" - 108";
DN900 - DN2700

Material:
Ductile iron

Pressure Rating:
Up to 26 bar

Medium Velocity Discharge Capability:
Up to 10m/sec

Submerged Discharge Valve

Series 3200

Size:
8" - 80";
DN200 - DN2000

Material:
Ductile iron,
Cast Steel &
Stainless Steel

Pressure Rating:
Up to 20 bar

Medium Velocity Discharge Capability:
Up to 6m/sec

High Discharge Capacity:
k=1.62

Metal Seated
Wedge Gate Valve

Series 3400

Size:
24" - 72";
DN600 - DN2000

Material:
Ductile iron

Pressure Rating:
Up to 26 bar

Medium Velocity Discharge Capability:
Up to 10m/sec

Services

Engineering Services

On-Site Services

Inhouse Repairs

Manufacturer of Valves for the Global Water Industry

Blackhall's extraordinary heritage in manufacturing specialist water valves can be traced back to 1828, cities including London, New York, Montreal, Sydney, Mumbai, Johannesburg, Riyadh and many others continue to rely on Blackhall valves for a large part of their Water Infrastructure and Supply. Water Industry applications include dams, reservoirs, hydro-electric power plants and water distribution networks for raw, treated, brackish and in extreme cases salt water.

Our valvologists continue to embrace leading technologies and as a result the Blackhall team use the latest in materials, CFDA, FEA and seismic analysis ensuring that our customers receive high performance valves for life. All this combined with the Blackhall professionalism cements our reputation as an unrivalled manufacturer of large bore water valves for the discerning customer. The heritage and evolution of the range has created products where a 100 year asset life is a proven reality.

Buy your critical assets once for ulimate peace of Mind