Product Description

The metal seat surrounds the disc. This structure can reduce the seat leakage. Featured by simple structure, light weight, mature manufacturing technology and convenient maintenance, the70S Seriesbutterfly valve is used for flow and pressure control in low pressure service conditions and is suitable for fluids of very high temperature. It is widely used in steel, building materials,

petrochemical industry, power station and other industries.

Actuator and auxiliary control device

·Pneumatic

·Electric

·Pneumatic-hydraulic

·Worm gear

Applications

·Chemical fiber, electric power, metallurgy

·Pharmacy, environmental protection

Manufacturing range

·Size range: DN 4" -120"

·Pressure rating: 150LB

·Connection type: wafer type, flange type

Parameters of control valves

·Trim features: metal face seat (backseat type), central line symmetrical structure

·Body type: straight-through type

·Bonnet type: standard integral type

·Flow characteristic: approximately equal percentage

·Shut-off class: ASME B16.104 II

·Pipe connection type: wafer type, flange type

·Applicable temperature range: -196°C-530°C

·Actuator type: pneumatic piston actuator

Structural drawing of 70S Series

Rated CV valve and travel

Calve Size(mm)	Rated CV valve 90°Opening	Calve Size(mm)	Rated CV valve 90°Opening
80	205	800	38900
100	436	900	49000
125	585	1000	63000
150	965	1200	73000
200	1908	1400	109000
250	3420	1600	125000
300	4920	1800	186500
350	5816	2000	214600
400	5843	2200	286700
450	12420	2400	308600
500	15160	2600	382200
600	20800	2800	470000
700	29900	3000	560000