Counter-weight Hydraulic Control Check Butterfly Valve

Counter-weight Hydraulic Control Check Butterfly Valve, PN10, PN16

Key Specifications / Features

Model No.: SJ-BFV-03 Hits: 334

Counter-weight Hydraulic Control Check Butterfly Valve, PN10, PN16
Request a quote
Tags:

Detail Information

Counter-weight Hydraulic Control Check Butterfly Valve

Purpose

Counter-weight Hydraulic Control Check Butterfly Valve are designed for installation at outlet of a pump in pipelines with water medium and served as both globe valves and check valves.The closing time and speed can be regulated so as to eliminate or reduce water hammer and prevent working medium from reversal flow.

Features And Benefits

1.HD(H)743X,HD(H)7S43X,HD(H)7BT43X-type hydraulic control check butterfly valves opened by hydraulic-driven and closed by counter-weight’s potential energy provides excellent and reliabl operation.

2.The valves is installed behind the pumps and served as both gate valve/butterfly valve and check valve with only 30% flow resistance coefficient of above two kinds of valves.It provides significant energy saving.

3.HD(H)743X,HD(H)7S43X,HD(H)7BT43X Check butterfly valve .The operation of hydraulic actuator is divided into two steps of quick closing from 90° to 30° and slow closing from 30° to 0°.The closing speed and angle can be adjusted according to working condition to prevent excessive water hammer.

4.The above three models of valves can be operated manually when power failure.

5.HD(H)743X valve features in auto-resetting.When the valve opening reduces by 15°,the oil pump starts and make the counter weight return to original position.

6.HD(H)7s743X Features in:

  1. The counter-weight is provided with locking device.When the valve reaches to the position specified,the arm of counter-weight shall be locked by locking pin to prevent valve from closing due to falling back of the counter-weight.
  2. Pressure relay is provided to compensate pressure needed by hydraulic actuator.

7.HD(H)BT743X Features in:

A.The valve closing is divided into two steps of quickclosing from 60°-80°in 5-20 seconds and slow closing from 30°-10° in 10-50 seconds.

B.Pressure Retaining

The hydraulic actuator is equipped with an energy accumulator storing with pressure oil to compensate pressure when leak occurs.

C.Standby Resetting Device.

Technical Data

DN

300-6000mm

Nominal Pressure 0.6 MPa 1.0 MPa 1.6 MPa 2.5 MPa
Seal Test Pressure 0.66 MPa 1.1 MPa 1.76 MPa 2.75 MPa
Strength Test Pressure 0.9 MPa 1.5 MPa 2.4 MPa 3.75 MPa
Medium Temperature

-5℃ to +60℃

Medium

Water

Valve Open Time

60-120 S (Adjustable)

Valve Close Time 65%-90% Closed in 60 S (Adjustable), Fully Closed in 90-240 S (Adjustable)
Max Hydraulic Pressure

1.60 MPa

Leak

Zero Leak

Flow Resistance Coefficient

≤0.09


Material

 

Main Valve Body

Valve Body Carbon Steel Q345
Valve Shaft 45# Steel or Stainless Steel 2Cr13
Dynamic Seal Ring Stainless Steel 1Cr18Ni9Ti
Static Seal Ring Ductile Iron Surfacing CrCoW

 

Bypass Valve

Valve Body Cast Steel WCB
Seal Stainless Steel 1Cr18Ni9Ti
Valve Shaft Stainless Steel 2Cr13
Expansion Bend Seat Cast Steel WCB
Tube Carbon Steel Q345

Counter-weight Hydraulic Control Check Butterfly Valve Drawing
Counter-weight Hydraulic Control Check Butterfly Valve Dimensions

Comment Form

Nickname*:
E-mail*:
Rate*:
Comments*:

Similar Products