Hydraulic Actuated Concentric Butterfly Valve

Connection Type Wafer-type / flangeless design for installation between flanges
Flow Direction Bi-directional
Disc Design Concentric disc rotates on central axis, minimizing pressure drop and turbulence
Sealing Elastomer seat provides bubble-tight shut-off (zero leakage) and compensates for minor disc misalignment
Stem Design Anti-blowout square-driven stem with lower thrust bearing to reduce friction and prevent galling
Actuator Mounting ISO 5211 compliant top flange for direct actuator mounting
Maintenance Compact, lightweight design with reduced maintenance requirements

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TECHNICAL DATA SHEET

Hydraulic Actuated Concentric Butterfly Valve

Stainless Steel Body · Rubber Seated

PRODUCT DESCRIPTION

The Hydraulic Actuated Concentric Butterfly Valve is a resilient-seated quarter-turn rotary valve designed for precise flow control and positive shut-off in demanding industrial and municipal applications. Featuring a concentric disc design with a stainless steel body and elastomer seat, this valve provides bubble-tight sealing, low pressure drop, and reliable performance across a wide range of media including water, oil, gas, and corrosive fluids.

The hydraulic actuator delivers substantial torque for smooth operation against significant line pressures, making this valve ideal for high-pressure automated systems requiring remote operation and SCADA integration.

デザインの特徴

Feature	Description
バルブタイプ	Concentric (centric) disc, resilient seated butterfly valve
Connection Type	Wafer-type / flangeless design for installation between flanges
Flow Direction	Bi-directional
Disc Design	Concentric disc rotates on central axis, minimizing pressure drop and turbulence
シーリング	Elastomer seat provides bubble-tight shut-off (zero leakage) and compensates for minor disc misalignment
Stem Design	Anti-blowout square-driven stem with lower thrust bearing to reduce friction and prevent galling
Actuator Mounting	ISO 5211 compliant top flange for direct actuator mounting
Maintenance	Compact, lightweight design with reduced maintenance requirements

TECHNICAL SPECIFICATIONS

3.1 General Parameters

パラメータ	仕様
Size Range	DN40 – DN600 (1.5″ – 24″)
Pressure Ratings	PN10 / PN16 / Class 150
設計基準	EN 593, ISO 5752, API 609, ASME B16.34
Face-to-Face Dimensions	ISO 5752 Series 20 / EN 558 Series 20 / API 609 Table 1
Flange Accommodation	DIN PN10/PN16, ASME Class 150, JIS 10K, BS4504 PN10
Top Flange	ISO 5211
Flow Velocity (Limit)	Up to 3 m/s (fully-open, continuous operation)

3.2 Operating Conditions

パラメータ	仕様
Maximum Working Pressure	1.6 MPa (16 bar)
Hydraulic Supply Pressure	40 – 70 bar (580 – 1015 psi) standard
Operating Temperature (Valve)	-20°C to +120°C (EPDM seat)
Operating Temperature (Actuator)	-20°C to +80°C
Allowable Continuous Use Temp.	-10°C to +100°C (EPDM)
Actuator Torque Output	100 Nm to 50,000 Nm (customizable)

MATERIAL SPECIFICATION

Component	材料	Equivalent Standard
体	Stainless Steel CF8 / CF8M (A351)	304 / 316 Stainless Steel
ディスク	Stainless Steel CF8 / CF8M	304 / 316 Stainless Steel
Stem / Shaft	Stainless Steel AISI 420 / 416 / 17-4PH	SUS420J2
Seat (Liner)	EPDM (Standard)
Seat (Optional)	NBR (Nitrile), Viton® (FKM)	—
O-Ring	NBR rubber	—
Bearing	PTFE-coated steel / POM	—

HYDRAULIC ACTUATOR SPECIFICATIONS

パラメータ	仕様
Actuator Type	Double-acting or Spring-return (fail-safe open/closed)
Hydraulic Fluid	Corrosion-resistant hydraulic oil (medium-viscosity anti-wear)
Max. Operating Pressure (Actuator)	16 MPa
Operating Temperature (Actuator)	-20°C to +80°C
Control Options	Manual override, solenoid valve, SCADA integration
Mounting Interface	ISO 5211

PERFORMANCE & TESTING

Test	Requirement
Body Shell Test	1.5 × rated pressure (hydraulic)
Seat Leak Test	1.1 × rated pressure (pneumatic)
Allowable Seat Leakage	Rate A — Tight shut-off (bubble-tight) per JIS B 2003
Bi-directional Sealing	100% bi-directional tight shut-off
Fire-safe Design	Available upon request

DIMENSIONS (Typical – Wafer Type)

Dimensions are for reference. Consult factory for specific drawings.

DN	Face-to-Face (mm)	Approx. Weight (kg)
40	33	—
50	43	—
65	46	—
80	46	—
100	52	—
125	56	—
150	56	—
200	60	—
250	68	—
300	78	—

Face-to-face dimensions per ISO 5752 Series 20 / EN 558 Series 20.

APPLICATIONS

Water distribution and wastewater treatment
Industrial process control
Petrochemical and power generation systems
HVAC and building services
Corrosive and non-corrosive liquid media
Slurries and fluids with suspended solids

OPTIONS & CUSTOMIZATIONS

Option	Details
Seat Materials	NBR, Viton® (FKM), PTFE
Body Materials	Ductile iron, cast steel, aluminum bronze
Actuator Configuration	Spring-return (fail-safe) or double-acting
Coating	Epoxy resin powder coating for enhanced corrosion resistance
Sanitary Design	Available for food-grade / hygienic applications
Custom Pressure Ranges	Available upon request

APPLICABLE STANDARDS

標準	Description
EN 593	Industrial valves — Butterfly valves
ISO 5752	Face-to-face dimensions for butterfly valves
API 609	Butterfly valves: wafer, lug, and double-flanged
ASME B16.34	Valves — Flanged, threaded, and welding end
ISO 5211	Actuator mounting interfaces
API 598	Valve inspection and testing

This technical data sheet is for general reference only. Specifications are subject to change without prior notice. For specific project requirements, please consult the manufacturer.

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