Grooved Ends Butterfly Valve

A Grooved Ends Butterfly Valve is a type of butterfly valve designed with grooved end connections that allow for quick and tool-free installation using mechanical couplings (such as Victaulic®-style fittings). This design eliminates the need for welding, threading, or flanging, significantly reducing installation time and labor costs.
Typically used in fire protection, HVAC, water distribution, and industrial piping systems, grooved-end butterfly valves feature a compact, lightweight body—often made of ductile iron—and a resilient seated disc (commonly EPDM or NBR) for tight shut-off. They are available in wafer or lug configurations and comply with standards such as AWWA C504 and UL/FM for fire safety applications.
Key advantages include ease of maintenance, system flexibility, vibration absorption, and suitability for large-diameter pipelines

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single technical attributes for a Grooved Ends Butterfly Valve:

Valve Type: Centric (Resilient Seated) Butterfly Valve
End Connection: Grooved ends (mechanical joint type, compatible with grooved couplings e.g., Victaulic®)
Body Material: Ductile iron (ASTM A536), cast iron, or stainless steel
Disc Material: Ductile iron, aluminum bronze, CF8, or CF8M stainless steel
Seat Material: EPDM (most common), NBR, Viton® (FKM), or Hypalon – selected based on media and temperature
Stem Material: Stainless steel (AISI 304 or 316), often double half-stem design
Size Range: Typically DN50 to DN600 (2" to 24")
Pressure Rating:

PN10 / PN16 (metric)
or Class 150 (imperial)
Common working pressure: up to 200 psi (13.8 bar) at 38°C (100°F)

Temperature Range:

EPDM: –40°C to +120°C (–40°F to +250°F)
NBR: –30°C to +80°C (–22°F to +176°F)

Face-to-Face Dimension: Complies with ISO 5752 Series 14 or AWWA C504
Operation: Manual lever (≤ DN150), gear operator (≥ DN200), or actuated (electric/pneumatic)
Standards Compliance:

AWWA C504 (for water service)
UL 260 / FM 1015 (for fire protection)
ISO 5208 (leakage)
MSS SP-68 (design)

Leakage Class: Zero leakage (bubble-tight) per ISO 5208 Rate A or ANSI/FCI 70-2 Class VI (with resilient seat)
Application Media: Water, air, oil, non-corrosive liquids/gases; widely used in fire protection, HVAC, and municipal water systems
Key Feature: No welding or threading required—installed with grooved mechanical couplings for fast, secure assembly