Which IS codes govern the manufacturing specifications of sluice valves?

IS 780 covers sizes from 50 mm to 300 mm, and IS 2906 covers larger sizes from 350 mm to 1200 mm.

How should the valve be positioned during transport and storage?

The valve must be stored and transported with the gate (wedge) in the fully closed position to protect the seating surfaces.

What is the recommended practice for tightening flange bolts?

Bolts should be tightened evenly and sequentially in a cross or diametrically opposite pattern to avoid overstressing the flanges.

IS 2685

: 1971

Code of practice for selection, installation and maintenance of sluice valves

CurrentSpecializedCode of PracticeBIMMEP · Sanitary Appliances and Water Fittings

Download PDF BIS Portal Google

This code of practice provides guidelines for the proper selection, handling, installation, testing, and maintenance of sluice valves (gate valves) used in water works. It aims to ensure leak-proof jointing, smooth operation, and prevention of operational failures in water supply networks.

Code of practice for selection, installation and maintenance of sluice valves

Quick Reference Values

Small valve size range (IS 780)50 mm to 300 mm

Large valve size range (IS 2906)350 mm to 1200 mm

Field test pressure1.5 times the maximum working pressure

Practical Notes

Always tighten flange bolts in a diametrically opposite sequence to ensure uniform gasket compression and avoid cracking the cast iron flanges.

Valves should be stored in a clean, dry place with the wedge fully closed to protect the machined seating faces from dust and damage.

Sluice valves should preferably be installed with the spindle vertical; horizontal installation requires special guides to prevent uneven wear on the seating faces.