Email: [email protected]
Phone: +91 93135 43530
Address: 133/1 Ground, Mansuri Block, Opp. Dudheshwar Water Tank, Ahmedabad-380004, Gujarat, India
Chain Wheel Operated Butterfly Valve — Krishna Industries, Ahmedabad
B2B supplier of Chain Wheel Operated Butterfly Valves — CI (IS 210) / DI (ASTM A536) / WCB body — SS304 / SS316 / CI disc — EPDM / NBR / PTFE seat — wafer and lug type — DN50 (2″) to DN600 (24″) — PN10 / PN16 — for elevated, overhead, and inaccessible pipeline installations.
GST Invoice · API 598 Test Certificate · MOQ 10 Nos · Pan India Dispatch from Ahmedabad
A Chain Wheel Operated Butterfly Valve is a gear-operated butterfly valve fitted with a sprocket and chain drive instead of a standard handwheel — allowing the valve to be opened and closed by pulling a hanging chain from floor level, while the valve body itself is installed at elevation 3m to 15m above. The chain wheel mechanism converts chain pull motion into disc rotation through the gear reduction unit — the same worm gear as a standard gear operated butterfly valve — with an additional sprocket and loop chain that hangs down to the operator’s reach level.
Krishna Industries (KELOR), based in Ahmedabad, Gujarat, supplies Chain Wheel Operated Butterfly Valves — CI / DI / WCB body — SS304 / SS316 disc — EPDM / NBR / PTFE seat — wafer and lug — DN50 to DN600 — PN10 / PN16 — API 598 tested — GST invoice — MOQ 10 Nos — Pan India dispatch from Ahmedabad.
💡 Why Chain Wheel — Not Just Another Gear Operated Valve: A chain wheel operator is specified specifically when the valve is installed at an elevation or location where the standard gear handwheel cannot be reached from floor level — overhead pipelines at 3–15m height, mezzanine pipe racks, elevated distribution headers, pipeline bridges, and any installation where mounting a platform or using a ladder for every operation is impractical. The hanging chain brings the operating point down to floor level — safe, convenient, and ladder-free for routine operation.
Chain Wheel vs Gear Wheel vs Extended Stem — When to Specify Each
| Operator Type | Specify When | Operating Mechanism | Typical Installation |
|---|---|---|---|
| Chain Wheel (This Page) | ✅ Valve at elevation 3–15m above floor — handwheel unreachable from floor — chain hangs down to operator level — no ladder required for routine operation | Worm gear + sprocket + hanging loop chain — operator pulls chain from floor level — chain drives sprocket → gear unit → valve disc | Elevated pipe racks, overhead main headers, mezzanine pipelines, pipeline bridges, elevated pump headers, water tower distribution mains |
| Standard Gear Handwheel | Valve at accessible platform or floor level — operator can reach handwheel directly — no elevation issue — DN150 and above where lever torque is too high | Worm gear + handwheel — direct handwheel rotation → gear reduction → valve disc | Floor-level valve stations, accessible platform-mounted valves, pump station floor-level large bore valves |
| Extended Stem | Valve buried underground, in a valve pit, or in insulated piping where operator access is restricted — rigid extension spindle brings operating end to surface level | Rigid extension spindle (200mm–3000mm) from valve disc to top key or handwheel at accessible level — structural guide brackets required for long extensions | Underground buried water mains, valve pits, insulated pipe sections, buried irrigation distribution valves |
| Electric Actuated | Remote operation required — BMS/DCS control — automated cycling — position feedback — any elevation where running power cable is feasible | Electric motor drive — 220V AC — remote on/off or modulating — position indicator | HVAC BMS-controlled valves, ETP/STP automated systems, municipal water treatment automation |
Body Material Selection — CI vs DI vs WCB
| Body Material | ✅ Specify For | ❌ Not For |
|---|---|---|
| CI (IS 210 FG260) | ✅ Raw water, sewage, HVAC, irrigation, fire fighting, cooling tower — most economical — standard for Indian municipal, civil, and infrastructure elevated pipeline chain wheel BFV | Aggressive chemical, seawater, DM water contamination risk |
| DI (ASTM A536) | ✅ Large bore DN200+ elevated pipeline — higher impact and mechanical strength than CI — buried or exposed pipeline where CI impact resistance is insufficient | Aggressive chemical service — specify SS for corrosive media |
| WCB (Carbon Steel) | Higher pressure Class 150/300 industrial process elevated pipelines — steam, oil, gas — where PN16 CI is insufficient | Corrosive water — specify SS for corrosive service |
Available Configurations — Select Your Chain Wheel BFV
CI Body — EPDM Seat SS304 Disc · Wafer · DN50–DN600 · Most popular
CI Body — NBR Seat SS304 Disc · Wafer/Lug · Raw water sewage
CI Body — PTFE Seat SS316 Disc · Chemical elevated pipeline
DI Body — EPDM Seat SS304 Disc · Large bore DN200–DN600
SS304 / SS316 Body Corrosive service elevated pipeline
All BFV Types Hub Complete butterfly valve range →
Technical Specifications — Chain Wheel Operated Butterfly Valve
| Parameter | Specification |
|---|---|
| Valve Type | Wafer butterfly valve / Lug butterfly valve — with chain wheel operator |
| Body Material | CI IS 210 FG260 / DI ASTM A536 / WCB ASTM A216 |
| Disc Material | SS304 (CF8 — standard) / SS316 (CF8M — corrosive service) / CI (most economical — raw water) |
| Seat Material | EPDM (HVAC and treated water — standard) / NBR (raw water and sewage) / PTFE (chemical service) |
| Shaft Material | SS304 (standard) / SS316 (corrosive service) |
| Operator | Worm gear reduction unit + sprocket wheel + endless loop chain — chain hangs to operating level |
| Chain Type | Galvanised mild steel chain (standard) / Stainless steel chain (corrosive outdoor environment) |
| Chain Length | As required — specify valve installation height at order stage for correct chain length |
| Position Indicator | Gear unit position indicator — shows open/closed disc position from operating level |
| End Connection | Wafer (standard — between ANSI/DIN/IS flanges) / Lug (dead-end service) |
| Size Range | DN50 (2″) to DN600 (24″) — chain wheel standard from DN100 and above where single-person operation at height is required |
| Pressure Rating | PN10 / PN16 |
| Temperature Range | -40°C to +120°C (EPDM) / -20°C to +80°C (NBR) / -10°C to +180°C (PTFE) |
| Face to Face | ISO 5752 Series 20 |
| Design Standard | API 609 / BS EN 593 / IS 13095 |
| Testing Standard | API 598 — hydrostatic shell test + Class VI seat leakage test |
| MOQ | 10 Nos |
| HSN Code | 84818090 |
Standard Dimensions — Chain Wheel Butterfly Valve (ISO 5752 Face to Face)
| Size | DN | Face to Face (mm) | Flange OD (mm) | Gear + Chain Wheel Height (mm approx.) |
|---|---|---|---|---|
| 2″ | DN50 | 43 | 125 | ~350 |
| 4″ | DN100 | 46 | 180 | ~420 |
| 6″ | DN150 | 52 | 220 | ~480 |
| 8″ | DN200 | 56 | 285 | ~540 |
| 10″ | DN250 | 56 | 345 | ~600 |
| 12″ | DN300 | 56 | 410 | ~650 |
| 16″ | DN400 | 60 | 515 | ~720 |
| 20″ | DN500 | 68 | 620 | ~800 |
| 24″ | DN600 | 78 | 725 | ~900 |
Chain wheel + gear unit height is approximate. Specify valve installation height at order stage so correct chain loop length is supplied. Chain hangs from sprocket to operating floor — total chain length = valve height above operator floor + 2× arm reach for comfortable pull.
Industries & Applications
💧 Elevated Water Mains
Municipal water supply overhead distribution headers — pump station elevated headers — overhead tank outlet isolation — DN200–DN600 CI body EPDM.
🌾 Irrigation — Elevated Headers
PMKSY and irrigation project elevated distribution headers at pump stations — chain wheel allows floor-level operation of elevated sector control valves.
🏭 Industrial Pipe Racks
Elevated process plant pipe rack valves at 5–10m height — cooling water, utility water, fire water mains — CI or WCB body depending on service.
⚡ Power Plant Cooling Water
Cooling water distribution headers at elevated plant sections — condenser inlet and outlet isolation at height — chain wheel avoids temporary platform for operation.
🏗️ Water Treatment Plants
ETP/STP elevated distribution and recirculation headers — elevated aeration basin inlet valves — floor-level chain operation from walkway below pipework.
🔥 Fire Fighting — Elevated Mains
Fire hydrant ring main overhead sections — elevated sprinkler system isolation — CI body EPDM seat PN16 — chain allows floor-level manual isolation.
🏢 Commercial Buildings
Riser pipe floor isolation valves in multi-storey buildings where valve is in ceiling void or above false ceiling — chain drops to accessible maintenance point.
🏭 Mezzanine Process Pipelines
Process plant mezzanine-level pipelines — valve body at mezzanine level — chain operation from ground floor — avoids mezzanine access for every valve operation.
Why EPC Contractors and Plant Buyers Choose Krishna Industries
🏭
B2B Supplier Since 2017
Sourced from verified Indian manufacturers. CI and SS body chain wheel BFV from Ahmedabad — shortest supply chain for Gujarat buyers.
⛓️
Custom Chain Length
Specify your valve installation height at order stage — chain length supplied to suit your installation. Stainless steel chain available for outdoor and corrosive environments.
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GST Invoice & API 598
100% GST compliant (GSTIN: 24AKLPP6499B1ZT). API 598 hydrostatic and seat leakage test certificate with every lot. MTC on request.
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MOQ 10 Nos
Minimum 10 Nos per size per configuration. Mixed BOM across sizes and body materials — single GST invoice for complete project order.
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Pan India Dispatch
Maharashtra, Tamil Nadu, Rajasthan, Karnataka, UP, Delhi NCR and all states via VRL / Professional Courier — 2–7 days transit from Ahmedabad.
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2-Hour Quote
WhatsApp size, body material, seat, disc, installation height (for chain length), and quantity. Pricing within 2 hours. Mon–Sat 9 AM–7 PM IST.
Need Bulk Pricing for Chain Wheel Operated Butterfly Valve?
Share size (DN), body material (CI / DI / WCB), seat (EPDM / NBR / PTFE), disc (SS304 / SS316 / CI), valve installation height (for chain length), wafer or lug, and quantity. Quote within 2 hours.
📲 WhatsApp for Bulk PriceSupply Coverage — PAN India from Ahmedabad
Krishna Industries dispatches Chain Wheel Operated Butterfly Valves from Ahmedabad to all major industrial cities: Mumbai, Pune, Nashik, Nagpur (Maharashtra) · Chennai, Coimbatore, Bengaluru, Hyderabad, Vizag (South India) · Delhi, Noida, Gurugram, Jaipur (North India) · Surat, Vadodara, Rajkot, Bhavnagar (Gujarat) and all other states via VRL / Professional Courier.
Related Products — Krishna Industries (KELOR)
- Gear Operated Butterfly Valve — same valve without chain wheel — for floor-level accessible installations where standard gear handwheel is adequate
- Extended Stem Butterfly Valve — for underground buried valves and insulated pipe installations — rigid extension spindle brings operating point to surface level
- Lever Operated Butterfly Valve — for small bore DN50–DN150 accessible installations where lever torque is comfortable
- CI Butterfly Valve Hub — Complete Range — all CI butterfly valve types and operators in one selection guide
- Butterfly Valve Hub — All Types — CI / DI / SS / lined — all operators — full butterfly valve range
Frequently Asked Questions
What is a chain wheel operated butterfly valve and when is it used?
A chain wheel operated butterfly valve is a gear-operated butterfly valve fitted with a sprocket and hanging chain loop instead of a direct handwheel. It is used when the valve body is installed at an elevation — typically 3 to 15 metres above floor level — where the standard gear handwheel cannot be reached from floor level. The hanging chain brings the operating point down to the operator’s floor level. Pulling the chain drives the sprocket, which turns the worm gear reduction unit, which rotates the butterfly disc open or closed. It is the standard solution for overhead elevated pipelines in Indian water treatment plants, pump stations, industrial pipe racks, and multi-storey building riser pipe valves where mounting a permanent platform for every valve operation is impractical.
What is the difference between chain wheel operated and extended stem butterfly valve?
Both solve the same problem — operating a valve that is not directly accessible — but by different mechanisms for different installation conditions. A chain wheel operator uses a flexible hanging chain — the valve body is at height and the chain hangs freely to floor level. No structural support for the operating element is needed — the chain just hangs from the sprocket. An extended stem brings a rigid mechanical spindle from the valve body down to a top key or handwheel at accessible level — typically for buried underground valves where a rigid connection to surface is required. Extended stem requires structural guide brackets to support the rigid spindle, especially for extensions above 1000mm. Chain wheel is better for overhead elevated installations where a hanging flexible connection is practical. Extended stem is better for underground and valve pit installations where a rigid guided connection to surface is required.
What chain length should I specify?
The chain loop length should be specified so that the lower end of the hanging chain reaches a comfortable pulling height for the floor-level operator — typically 0.8m to 1.2m above floor. General rule: chain loop length (one side) = valve installation height above operator floor + 0.5m for comfortable arm reach. For a valve installed 4m above floor, specify chain loop length of approximately 4.5m per side. The total chain loop goes over the sprocket, so the actual chain quantity is approximately 2× the single-side length. Specify the valve installation height at order stage — we confirm the correct chain length before dispatch. Providing the wrong chain length is the most common ordering mistake — too short and the chain cannot be reached from floor; too long and excess chain coils on the floor creating a trip hazard.
Which body material and seat should I specify for an elevated water supply main?
For elevated water supply mains — municipal water, pump station headers, OHT distribution — specify CI body (IS 210 FG260) with SS304 disc and EPDM seat. CI body is most economical and adequate for ambient temperature treated or untreated water service. SS304 disc avoids CI disc corrosion that contaminates treated water and causes disc failure within 3–5 years. EPDM seat handles biocide-treated water and provides long seat life in water service. For coastal or seawater-adjacent installations where CI body corrosion is accelerated by salt air, upgrade to DI body with SS304 disc and EPDM seat.
What is the MOQ and documentation provided?
MOQ is 10 Nos. Every order includes GST invoice (GSTIN: 24AKLPP6499B1ZT), API 598 hydrostatic test certificate, and seat leakage certificate. MTC for disc material grades (SS304 / SS316) available on request. WhatsApp size, body, disc, seat, installation height (for chain length), wafer or lug, and quantity for pricing within 2 hours.