blocks guide brackets, thrust iron Grade nut, stem coupling Stem (spindle), Gate, frame Structural IS:2032

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1 CHAPTER 26-SUPPLY AND ERECTION OF GATES Notes- 1. The rates include all lead and lift and cost of all materials and labour, for all Items. 2. The gates are classified on the basis of head above sill level as follows:- (a) High head gate- A gate which operates under a head of 30 m and above. (b) Medium head gate-a gate which operates under a head of 15 m and above, but less than 30 m and (c) Low head gate - A gate which operates under a head of less than 15 m. 3. The gates shall be designed taking into consideration the recommended design criteria and the materials used for different components shall conform to the relevant I.S. 4. Canal gates of small size:-(a) The small gates shall be square or rectangular in shape. The size of square opening shall be 300, 450, 600, 750, 900, 1050 and 1200 mm and that of rectangular 1200 mm (width) x 900 mm (depth). (b) The hoisting and the dia of the lifting rod shall be determined by taking into consideration the operating head under which the gate is to be closed. The type and of the headstock and dia of hand wheel should be sufficient to enable operation of gate under the maximum operating head by a single person with an effort on the rim of handwheel not exceeding 136 Newton. (c) The exact length of lifting rod, number of rods, guide- brackets and number of rod COUPLINGS required shall be determined considering distance from centre line of water way opening to the top of operating platform or distance from the bottom sill of gate to the top of operating platform. (d) The materials used for different components shall be as specified below:- S. Component part Material Specification No. 1. Head stock body, wedge, Grey cast IS:210 blocks guide brackets, thrust iron Grade nut, stem coupling Stem (spindle), Gate, frame Structural IS:2032 shutter Steel 3 Stem nut. Cast brass IS:28 4 Seating face (seat facings). Brass IS, Assembly bolts & nuts, wedge, clamping, adjustment bolts and nut Electro galvanised Mild steel 6 Anchor bolt Mild steel IS: Paint gate Epoxy paint IS:14177

2 8. Paint for head-stock. Enamel paint (e) The gates shall be shop tested. The leakage, if any, shall not exceed 1.5 liter per minute per m length of sealing perimeter while testing without hydraulic pressure. 5. Nominal sizes and Dimensions of single faced sluices shall be as specified below :- Sr. No. Shape Size Ref. to fig. as per table-2 page & fig. page to of Sp. Vol-IV 1 Circular (a) 200 to A(1), 4 B(1) (b) 200 to C (1), 4 D (1) 2 Square (a) 200 to A (2), 4 B (2) (b) 200 to C (2), 4 D (2) 3 Rectangular 300x375 to 1200 x Approximate weight of canal and Tank Gates as per standered size, rod size and rod length shall be taken as below: (A) Canal Gates (1.5 Meter Rod Length) Size of Gate (in mm) Rod Size (Spindle Dia) Approximate weight (in Kg.) 300 x 300 mm 40 mm 150 Kg. 450 x 600 mm 48 mm 240 Kg. 600 x 600 mm 55 mm 320 Kg. 900 x 900 mm 500 Kg. 4 E (B) Tank Gate (10 Meter Rod length) (Up to 15 meter water head ) Size of Gate (in mm) Rod Size (Spindle Dia) Approximate weight (in Kg.) 300 x mm 180 Kg. 450 x mm 275 Kg. 600 x mm 400 Kg. 750 x mm 410 Kg. 900 x mm 550 Kg. 7. The following Indian Standard, may be referred to : - I.S No. Title Specifications for grey iron casting (Reaffirmed in 1999 )

3 Specifications for structural steel (standard quality) (Superceded by I. S ) 5th revision Specifications for bronze in gates & castings (Reaffirmed in1998), Specifications for loaded Tin Bronze and casting (Reaffirmed in 2001): Code of practice for General construction in steel in general building construction. (Reaffirmed in 1998) (Pt.III,V & VI) Specifications for rolled steel beam, channel and angle sections (revised in 1989) Code of practice for use of Metal Arc Welding for general construction in Mild steel. (reaffirmed in 1998) Code of practice for straining and testing of metal arc welders. (Reaffirmed in 2003) Code of practice for resistance spot welding for light assemblies in Mild steel. (reaffirmed in 1998) Code of practice for inspections of welds. (Reaffirmed in 2003) Code of practice of Metal Arc Welding of Mild steel Code of practice for use of welding in Bridges and structures, subject to dynamic loading Carbon steel castings for general engineering purposes Electroplated castings of Nickle & Chromium Iron & Steel. (Reaffirmed in 2006) Qualifying test for Metal Arc Welders. (Superseded by ) Code of practice for Oxygen-Acetylene welding for structural work in mild steel. (Reaffirmed in 2003) Code of practice for training and testing of Oxygen- Acetylene welding (Reaffirmed in 2003) (Part-VII) Schedule for wrought steel for general engineering purposes (Reaffirmed in 1998) Specifications for steel forgings for general engineering purposes Specifications for structural steel. (Fusion Welding quality) (Revised in 2006) Code of practice for Radiographic Testing. (Reaffirmed in 2000)

4 Code of practice for stress relieving of welding joints.(reaffirmed in 2002) Specifications for single faced sluice gates (200 mm to 1200 mm size) (Reaffirmed in 2003) Recommendations for structural design of fixed wheel gates Recommendations for structural design of radial gates.(iii rd revision) Specifications for sprayed aluminium and zinc coating on iron & steel. (Reaffirmed in 2000) Specifications for stainless steel wire rod (reaffirmed 2006) Specifications for Stainless steel bars and flats Code of practice for design and rope drum and chain hoists for hydraulic gates (with amendment 2 ) 7718(Pt 1)-1991 Recommendations for inspection, testing and maintenance of fixed wheel slide gates at manufacturing stage.(revised in 1991 ) (Reaffirmed in 2001) 7718 (Pt 11) do- at the time of erection..(revised in 1991 ) 7718(Pt 111) do- after erection. (Revised in 1991 ) Structural steel micro alloyed (medium and high strength qualities). (Reaffirmed in 2000) Recommendations for structural design of medium and high Head Slide gates. ( II nd revision) 10096(Pt.I, Sec.I) 1963 Recommendations for inspection, testing, maintenance of radial gates and their hoists at manufacturing stage. (Revised in 1983 and Reaffirmed in 1990) (Part- I, 1983 Inspection, testing and assembly at the manufacturing stage section-i Gates. (Reaffirmed 2000) Section-2- Rope Druro hoists - Rs Part-II, 1983 Inspection, testing and assembly at the time of erection(reaffirmed 2000) (Pt. III) do- after erection. British Steel Corpn. Corrosion prevention booklet No Criteria for design of hydraulic Hoist for gates (First revision)

5 2601(A) Design, drawing, fabrication, supply and errection of structural steel vertical lift gates for canals and Dam sluice etc. above 5.00 meters head fix wheel type with gate leaf (complete with skin plate, stiffeners, ballast weight if required, guide embedded parts ) first stage anchors, sill beam fitted with stainless steel flat, rollers, track fitted with stainless steel flat guide tee, rubber seal etc. as per IS: 4622 duly painted as per UCSR item No with screw hoist hoisting rod,hoist guide, support structure etc. 2601(B) Design, drawing, fabrication, supply and errection of structural steel vertical lift gates for canals and Dam sluice etc. above 5.00 meters head fix wheel type with gate leaf (complete with skin plate, stiffeners, ballast weight if required, guide embedded parts ) first stage anchors, sill beam fitted with stainless steel flat, rollers, track fitted with stainless steel flat guide tee, rubber seal etc. as per IS: 4622 duly painted as per UCSR item No to be operated by Rope drum hoist (excluding weight and cost of rope drum hoist). Tonne Tonne

6 2602(a) Design/Drawing fabrication supply and erection of structural steel Radial crest gate, as per IS:4623 with skin plate stiffeners, guide, embedded parts, sill beam, fitted with stainless steel flat, guide roller, rubber seals wall plate fitted with stainless steel flats trunion & anchorage as required complete with hoist bridge etc. (Excluding cost & weight of hoist) 2602(b) Design/Drawing fabrication supply and erection of structural steel vertical lift crest gate, as per IS:4622 with skin plate stiffeners, ballast weight, guides, embedded parts, sill beam, fitted with stainless steel flat, track beam and sealing frame fitted with stainless steel flat, roller, rubber seals, etc. complete with hoist bridge. (Excluding cost & weight of hoist) 2603 Fabrication, supply and ercection of structural steel vertical lift gates for canal size 2400 x 2000mm and above fixed wheel type with gate leaf (complete with skin plate, stiffeners, guide etc., embedded parts) first stage anchors sill beam fitted with S.S plate, seal frame fitted with S.S plate, guide etc. rubber seals as per IS 4622 duly painted as per UCSR item 1854 to be operated with rope drum hoist ( excluding weight & cost of rope drum hoist) Tonne Tonne Tonne

7 2604 Fabrication, supply and erection of Tonne structural steel vertical lift gates for canal below size 2400 x 2000mm fixed wheel type with gate leaf (complete with skin plate, stiffeners, guide etc., embedded parts first stage anchors sill beam fitted with S.S plate, seal frame fitted with S.S plate, guide tee etc). rubber seals as per IS 4622 duly painted as per UCSR item 1854 to be operated with rope drum hoist ( excluding weight & cost of rope drum hoist) 2605 Fabrication, supply and erection of Tonne fixed wheel type structural steel vertical left gates for canal below size 2400 x 2000mm with gate leaf (complete with skin plate, stiffeners, guide etc.), embedded parts (first stage anchors sill beam fitted with S.S plate, seal frame fitted with S.S plate, guide tee etc). rubber seals, as per IS 4622 duly painted as per UCSR item 1854 with screw hoist, hoisting rod, guide, hoist support structure etc. II CANAL GATES OF LARGE SIZE (SHORTER SIDE MM & ABOVE) 2606(a) Fabrication & supply of water tight structural steel sliding type low head gate for dam head sluice and canals with gate leaf and frame as per IS 5620 complete with brass / stainless steel lining of appropriate size for seal seats and sill and Tonne seals of rubber/metal, guides, hoisting rod, screw hoist and duly painted as per UCSR item No.1854 III CANAL GATES OF SHORTER SIZE (LARGER SIDE BELOW MM )

8 2606(b) Fabrication & supply of water tight structural steel sliding type low head sluice with gate leaf and frame as per IS 3042 complete with brass / stainless steel lining of appropriate size for seal seats and sill and seals of rubber/metal, guides, hoisting rod, screw hoist and duly painted as per USR item No (c) Erection of canal gates for item 2606 (a) & 2606(b) Tonne Tonne 15% of item no (a) & 2606 (b) 2607 (A) Supply of Rope Drum Hoist as per IS: including transportation to site i. Manually operated hoists 8 M.T. Per Unit ii. Manually operated hoists 10 M.T. Per Unit iii. Manually operated hoists 12 M.T. Per Unit iv. Manually operated hoists 15 M.T. Per Unit v. Manually operated hoists 18 M.T. Per Unit vi. Manually operated hoists 20 M.T. Per Unit vii. Manually operated hoists 25 M.T. Per Unit viii. Manually operated hoists 30 M.T. Per Unit ix. Manually operated hoists 35 M.T. Per Unit x. Manually operated hoists 40 M.T. Per Unit xi. Electrically operated Hoists Per Unit (Within Built Manual operation ) 5 xii. Electrically operated Hoists Per Unit (Within Built Manual operation ) 6

9 xiii. Electrically operated Hoists Per Unit (Within Built Manual operation ) 8 xiv. Electrically operated Hoists Per Unit (Within Built Manual operation ) 10 xv. Electrically operated Hoists Per Unit (Within Built Manual operation ) 12 xvi. Electrically operated Hoists Per Unit (Within Built Manual operation ) 15 xvii. Electrically operated Hoists Per Unit (Within Built Manual operation ) 18 xviii. Electrically operated Hoists Per Unit (Within Built Manual operation ) 20 xix. Electrically operated Hoists Per Unit (Within Built Manual operation ) 25 xx. Electrically operated Hoists Per Unit (Within Built Manual operation ) 30 xxi. Electrically operated HoistsPer Unit (Within Built Manual operation ) 35 xxii Manually operated hoists 5 M.T. Per Unit (B) Errection of hoist, with test & trail Per Unit 15 % of Item No (A) Special Item: 2608 II nd stage concreting 1:2:4 with Cum graded metal of max. size 12.5 mm in gate groove & sill beam after fixing and alignment of second stage parts, sill beam, including cost of material, labour for shuttering, maxing, laying scaffolding consolidating, quering and cleaning & finishing/chipping as required including all lead & lift.