Spare Parts
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The Situations That Drive Spare Part Orders
A single failed gasket stopped production for half a day
A tri-clamp gasket costs very little. The line downtime it causes while waiting for a part from a distributor costs orders of magnitude more. Most facilities that experience this keep a minimum 90-day stock of all gasket sizes on site afterward.
Solution: No MOQ at HEYI. Order a year's supply of every size you use in a single shipment.Do not know which replacement gasket fits your valve
Valve model numbers change across generations, and distributors often send the wrong size. A gasket that is 1mm too small creates a gap, a leak and a CIP validation failure.
Solution: Send us your valve model or ferrule OD measurement. We confirm the exact part before shipment, not after.Butterfly valve seat failing early, material not matched to the process
A silicone seat used in a line that runs high-concentration CIP acid will swell and deform within months. The wrong seat material costs more in replacements than the correct EPDM or FKM seat would have cost initially.
Solution: HEYI stocks butterfly seats in Silicone, EPDM, PTFE, and FKM. Specify your media and CIP chemical for a confirmed grade.No spare parts inventory system, reactive buying after failures
Facilities without a structured spares programme spend three times more on emergency orders and unplanned downtime than those with a 90-day safety stock policy.
Solution: Ask us for a recommended spares kit based on your valve and fitting inventory. One order, 90-day coverage.All Sanitary Spare Parts - Compatibility Guide
| Part | Compatible With | Material | Sizes | Standard |
|---|---|---|---|---|
| Tri Clamp Gasket - PTFE / FKM / Silicone / EPDM | All HEYI tri-clamp valves and fittings, universal 3A/ISO fit | PTFE / FKM / Silicone / EPDM | DN15 to DN350 | 3A / FDA / ISO 2852 |
| EPDM/PTFE Composite Gasket | Tri-clamp connections needing EPDM elasticity plus PTFE chemical resistance | EPDM core plus PTFE face | DN15 to DN200 | FDA |
| Tri Clamp Gasket with Screen | Tri-clamp connections requiring inline particle retention | Silicone / EPDM plus SS mesh | DN15 to DN100 | FDA, 20-200 mesh |
| PTFE Flange Gasket | All HEYI flanged valves and fittings, DIN / ANSI / GB flanges | Virgin PTFE | DN15 to DN300 | FDA / RoHS / REACH |
| Butterfly Valve Silicone Seat | HEYI tri-clamp and butt-weld butterfly valves (check size code when ordering) | Food-grade Silicone | DN25 to DN200 | FDA / 3A |
| Diaphragm Valve Silicone Diaphragm | HEYI diaphragm valves (tri-clamp, U-type, GEMU-type). Specify body size. | Food-grade Silicone (EPDM / PTFE available) | DN15 to DN100 | FDA / 3A |
| Sanitary Tri-Clamp Pressure Gauge | All HEYI valves and fittings with tri-clamp pressure port | SS316L wetted parts, glycerin-filled | 1.5 inch TC, dial 40-100 mm | FDA wetted parts |
Which Gasket or Seal Material Should You Specify?
| Material | Temp Range | Chemical Resistance | Best For |
|---|---|---|---|
| EPDM - Most Common | -40C to 150C | Hot water, steam, dilute acids and caustic CIP chemicals. Not suitable for oils or solvents. | DairyWaterGeneral food |
| Silicone - Taste Neutral | -60C to 200C | FDA and 3A compliant, no taste or odour transfer. Not suitable for steam above 150C repeatedly. | BeveragesPharma syrups |
| PTFE - Chemical Resistant | -29C to 180C service | Inert to virtually all acids, solvents, and corrosive media. Less elastic than EPDM. | AcidsSolventsAPIs |
| FKM (Viton) - High Temp | -20C to 200C | Better chemical resistance than EPDM, more elastic than PTFE. Higher cost. | High-tempSIP above 140C |
| EPDM/PTFE Composite | -40C to 150C | PTFE face for chemical resistance, EPDM core for elasticity and sealing. FDA compliant. | Corrosive mediaCIP acids |
Frequently Asked Questions
How do I know which tri-clamp gasket size to order?
Are HEYI spare parts compatible with other valve brands?
Can I use a silicone gasket in a CIP system?
What is the minimum order quantity for spare parts?
Why Buyers Order Direct From HEYI Factory
HEYI (Hyflowtech) is an OEM manufacturer, not a trading company. Every unit is fabricated, tested, and shipped from our own facility. Factory audit visits welcome.
Order Sanitary Spare Parts - Factory Direct
Tri-clamp gaskets, butterfly valve seats, diaphragm replacements, composite gaskets, and pressure gauges. All sizes in stock. No minimum order. Send your valve model and size for a confirmed compatibility check before ordering.
FDA / 3A compliant | DN15 to DN350 | PTFE / EPDM / Silicone / FKM | No MOQ
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