Gate Valves

Resilient Seated Gate Valves - DN 40 to DN 800

IO Valves Resilient Seated Gate Valves are designed in accordance with BS EN 1074 (Parts 1 & 2) for use in water supply and distribution systems. Featuring a fully elastomer-coated wedge and epoxy-coated ductile iron body, these valves provide bubble-tight shut-off, corrosion resistance, and reliable long-term performance under varying pressure conditions.

The valves comply with BS EN 558 face-to-face dimensions and BS EN 1092-2 flanged connections, ensuring interchangeability and ease of installation in existing pipeline networks. Suitable for potable water applications, the resilient seat design ensures smooth operation, minimal maintenance, and extended service life.

Material of Construction

Design Standard

Face to Face

Body/Bonnet

Disc

Stem

Stem Nut

Thrust Washer & Sleeve

3 O Rings

Hand Wheel

Coating

Flange Drilling

Testing

Operating Temperature

: BS 5163

: BS EN 558

: Ductile Iron GGG 50

: EPDM + DI

: SS420

: Brass

: EPDM

: NBR

: DI GGG 50

: Epoxy Powder Coating Min.250µ

: EN1092-2

: EN 12266-1

: 0°C to +80°C

Size Range: DN 40 – 300 Pressure Rating: PN 10|16|25

Key Features

• Full-bore design for unobstructed flow and low-pressure loss

• Gland less design prevents cross contamination and ensures smooth operation

• Fusion-bonded epoxy coating on internal and external surfaces

• Multiple O-ring stem sealing system for leak-free operation

• Top 3 stem O-rings replaceable under pressure with valve fully open

• Clockwise closing (CWC) operation as standard

• Rubber dust cover for stem protection

• Brass thrust washer for smooth operation and extended service life

• Bonnet gasket seated in machined recess to prevent blow-out during surges

• Galvanized carbon steel bonnet bolts (SS304 optional)

• Optimized liner sealing face for improved sealing and reduced operating torque

• Enhanced disc design with linear dis sealing prevents rubber damage and extends service life

Air Valves

IO Valves Combination Air Release Valve is a self-operating, float-controlled valve designed for automatic air management in water pipeline systems.

Butterfly Valves

IO Valve’s DOBFV Valve double offset disc design minimizes contact between the disc and seat during operation, reducing friction and wear.

IO Valves Silent Type Check Valves operate as non-return valves, allowing smooth, uninterrupted flow in the forward direction with minimal head loss.

Non-Slam Chek Valve