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Series 31H/36H Actuated Butterfly Valve

Product Description

Series 31H/36H are fully automated butterfly valve packages supplied with pneumatic actuators, positioners and accessories. Configured for either on/off or modulating control in automated process lines.

Technical Specifications

Size Range 2" – 36" (DN50 – DN900)
Pressure Class ASME Class 150 / 300
Body Type Wafer, Lug, Double Flanged
Actuation Pneumatic double acting / spring return
Accessories Positioner, solenoid valve, limit switch box
Control On/off, modulating 4-20mA
Standard API 609, ISO 5211 mounting

Applications

Automated process controlWater treatment plantsHVAC automationPulp and paper

Frequently Asked Questions

What is the minimum order quantity for this product?

For standard specifications we accept trial orders starting from a small quantity. For customised production the MOQ depends on the specification — please contact our sales team for details.

How long is the production lead time?

Standard items are typically ready within 15–25 working days after order confirmation. Customised products may require additional time, which we will confirm before you place the order.

Do you provide technical drawings and certificates?

Yes. We can provide dimensional drawings, material certificates and third-party inspection reports on request.

What are your shipping terms?

We normally ship on FOB, CIF or EXW terms. Please tell us your destination port and we will quote the most suitable option.

Industrial Valves · Butterfly Valve

Series 31H/36H Actuated Butterfly Valve

Automated butterfly valve assemblies with pneumatic actuator, positioner and solenoid for on/off and modulating control.

Key Specifications

material
Cast Iron · Ductile Iron · Stainless Steel 316
pressure
Class 150 · Class 300
medium
Water · Air · Steam
connection
Wafer · Lug · Flanged

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