Aquaseal Elastomer Lined Butterfly Valves

Introduction

Explore robust elastomer lined butterfly valves engineered for tight shut-off, low torque, and long service life in water, air, slurry, and bulk powder lines. Shrinathji Infracon integrates wafer, lug, and double-flanged valves with silos, hoppers, air slides, and pneumatic conveying systems for reliable isolation and throttling.

Description

Elastomer-lined (soft-seated) butterfly valves feature a moulded seat—EPDM, NBR, or Viton—that envelopes the body bore to achieve bi-directional bubble-tight sealing. A streamlined disc (SS/DI) rotates 90° for quick on/off control. These valves are compact, economical, and easy to automate using gear, pneumatic, or electric actuators with limit feedback—ideal for RMC plants, cement terminals, utilities, and process industries.

Typical Specifications

Parameter	Specification Range
Size Range (DN)	DN50 to DN1200 (larger sizes on request)
Pressure Class	PN10 / PN16 (consult for higher ratings)
Body / Disc	DI/CS body; Disc in DI epoxy coated / SS304 / SS316 / Al-Bronze
Seat (Liner)	EPDM / NBR for water & air; Viton for chemicals/temperature; PTFE lined options for corrosives
Temperature	−10°C to 120°C (seat dependent)
End Connection	Wafer & Lug to ISO/EN/ASME drilling; Double-flanged for heavy-duty isolation
Actuation	Lever/lock-notch, worm-gear, pneumatic (DA/SR), electric on/off or modulating with positioner

Key Features of Elastomer Lined Butterfly Valves

Bubble-tight bi-directional shut-off with moulded elastomer liner
Low operating torque; compact face-to-face for easy retrofits
Blow-out proof stem, dry bearings, and corrosion-protected hardware
Seat isolates body from media—enhanced corrosion resistance
Easy automation with standard ISO top flange for actuators
Compliance to EN 558/API face-to-face and API 598 test standards

Where They Are Used

Cement & Fly Ash: Silo outlets, air slides, bag filters, blower lines
Utilities: Water distribution, HVAC/chilled water, fire mains
Process Lines: Slurries, non-sticky chemicals, edible oils (seat-compatible)
Bulk Solids: Lime, gypsum, bentonite, silica—isolation and throttling

Selection Guide

Define medium, temperature, pressure, size (DN), seat/disc materials, and end connection (wafer, lug, flanged). For powders, prefer abrasion-resistant discs and reinforced flanges. For automation, decide fail-safe (FO/FC), instrument air quality, I/O type, and require limit switches/positioner for PLC interlocks.

Why Choose Us?

Shrinathji Infracon supplies and integrates elastomer-lined butterfly valves with complete silo and conveying packages. We support sizing, actuator selection, mounting kits, commissioning, and spare parts—ensuring leak-tight isolation, reliable cycles, and low maintenance in Indian site conditions.

FAQs

1. What’s the difference between wafer and lug types?

Wafer fits between flanges and needs through-bolts; lug has threaded lugs enabling one-side disassembly or end-of-line service (verify pressure rating).

2. Which seat should I choose?

EPDM suits water/air; NBR for oils; Viton for temperature/chemicals; PTFE lining for aggressive media. We’ll recommend based on your process.

3. Can these valves throttle flow?

Yes, for general control. Use geared/actuated valves with positioner for repeatable throttling; check Cv and ∆P to avoid cavitation/noise.

4. Do you provide actuator packages?

We supply pneumatic/electric actuators with mounting kits, limit switches, solenoids, AFRs, and manual overrides—fully wired and tested.

5. Are soft seats suitable for vacuum?

Yes, many elastomer-lined valves handle vacuum; selection depends on seat hardness and design. Consult us for duty specifics.

Conclusion

For dependable isolation and control with low torque and bubble-tight sealing, choose elastomer lined butterfly valves integrated by Shrinathji Infracon. Get correct sizing, right materials, and field-proven actuation tailored to your plant.

Contact Details

Talk to our specialists today for tailored solutions and fast assistance.

Company:

Shrinathji Infracon

Phone:

+91 9829101412

WhatsApp: Chat on WhatsApp

Email: Shrinathjinfracon@gmail.com

Website: siloindia.in

Address:

Shed No.1, A Matru Chaya Industrial Estate, Dhamatwan-Vanch Road, Village-Dhamatwan, Taluka-Dascroi, Ahmedabad-382435, Gujarat, INDIA

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Aquaseal Elastomer Lined Butterfly Valves