Rubber Lined Butterfly Valves for HVAC & Ulitities

Rubber Lined Butterfly Valves for HVAC & Ulitities

Key Features
  • Integrally molded seat liner on the body, which ensures excellent dimensional stability & guaranteed seat tightness.
  • Seat liner extending onto the contact faces ensures perfect sealing and eliminates the need for separate flange gaskets.
  • A unique triple sealing system for shaft sealing ensures zero leakage of the media past the shaft seals.
  • A narrow land disc ensures perfect sealing with the least operating torque requirements.
  • A fully universal body design ensures fitment of the valve between companion flanges of all popular standards (viz: ANSI, BS, DIN, JIS, IS, etc. ).
  • A ten-position notch disc and hand lever ensure locking of the valve in 8 intermediate positions in addition to the closed and open positions. Hand lever lockable through padlock for tamper-proof positioning.
  • Body castings are made of superior FG 260 grade cast iron to ensure additional strength.
  • Valve disc made of ductile cast iron instead of cast iron to withstand against possible water hammer or pressure surges.
  • A truly line-size body bore to ensure maximum flow capacity with the lowest pressure drop.
  • Shafts are made of martensitic stainless steel to ensure maximum strength and torsional rigidity.
  • Both top and bottom shaft swiveling are guided by self-lubricated PTFE bearings.
  • Fool-proof hand lever designed to prevent the accidental pinching of hand between the handle and locking lever.
Product Enquiry

Intervale’s GKL series valves are designed to meet the demanding requirements of the general utility valve market with the HVAC segment in particular. IVGKL is a truly fit & forget valve, which requires minimal maintenance.

The body liner which also functions as the soft seat comes in an integrally molded (bonded) version and offers 100% bi-directional sealing. The wafer-style body has a universal design to fit between pipe flanges of almost all popular flange standards.

Applicable Standards

General design & manufacturing EN 593
Valve face to face dimensions EN 593 | API 609 category A | Short wafer as per ISO 5752 Tab 5
Top flange drilling ISO 5211
Valve inspection and testing EN 12266 Part 1
Flange standard conformity DIN EN 1092 – PN6 | PN10, Class 150, JIS5K | 10K, BS10 Tab D & E, IS 6392 Tab 11 | 17

Technical Specifications

Valve type Centric Disc Rubber Lined Butterfly valve with a single piece body
Body type Short wafer (sandwiched between flanges)
Seat type Integrally moulded with the body.
End Connection Wafer Sandwiched
Size range DN40 to DN200
Pressure rating PN16 (max)
Operating Temperature Range -25 °C to 80 °C
Seat leakage Tight shut of (Bi-directional)
Operation Handlever for sizes from DN40 to DN200

Standard Material of Construction (MOC)
Valve Body CI (IS 210 FG 260)
Valve Disc SGI (GGG 40)
Seat liner Nitrile
Drive end & non end shaft SS 410

Material Diagrams

Sizes / Dimensions

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C. B. Trading Corporation is an eminent distributor and trader of a wide range of Valves, Pipe Fittings, Forged Carbon Steel, and Water & Steam Flow Meters. 

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