PVC Products

PVC Water Stopper Seal are based on particularly formulated plasticized PVC composition. The assortment of seals is extensively used in concrete masonary construction of hydraulic structure to protect from water seepage and hydrostatic pressure. The seal can easily bear contraction or expansion of joints and take care of any displacement arising because of change in temperature or settlement of base removing danger of cracks. These seals are tested in accordance with ASTM standards, and the performance requisite of water stops will meet the Bureau of Indian Standard Specification IS : 12200/1987.

Quick Facts

• Longer working life
• High mechanical and tensile strength
• Corrosion resistant
• Effective in tropical climates with weather resistance
• Easy to weld and install
• Lower water absorption than rubber
• Non hazardous and fire retardant
• Unaffected by acids, alkalis, metal salts & other chemicals
• Can bear shocks of heavy turbines earthquakes, floods
• Works as water tight seal and allows safe passage for water seepage
• Can withstand high hydrostatic pressure, floods, heavy turbines and earthquakes

Usage & Applications

Types of Water Stops

Kicker (surface) Type:		This is externally placed PVC waterstop, which is used where embedded type of seal can not be used due to steel reinforcement.
Dumb-Bell Type:		This type of PVC waterstop comes with solid circular bulb either side and is used where large movement is expected due to expansion/contraction. These are also used for settlement joints and crumple section.
Ribbed Type:		This is a multipurpose PVC waterstop, having ribs on surface that ensure water tightness. The seal is used for expansion/contraction joints and also for construction joints.
Replaceable Type:		It is a specially developed PVC waterstop, which is designed by Ganga Modernisation Authority Roorkee (U. P.)

Range

• Available in large range from 100 mm width to 400 mm width.

The seal is in conformation with

• IS 12200 of 1987/15058 material specifications
• Central Water Commissions specifications
• NTPC and Nuclear Power Corporation specifications
• Ontario Hydro & Corps. of Engineer (U.S. Army) specifications for sub-zero temperature conditions with special formulations

Selection of PVC Water Stops depends upon hydrostatic pressure or safe passage of seepage water.

Installation & Jointing

• Cut the water stop using a sharp knife
• Heat the thermostatic plate to 200 degree centigrade
• Press the two ends of the water stops that are to be joined against the heated plate. Melt the PVC to the desired and join the two ends taking care of well alignment

Hydrostop PVC Water Stop

SECTION	WIDTH MM	THICK-NESS MM	SAFE-HYDROAULIC PRESSURES MTRS	DESCRIPTION AND SUITABILITY
	150	4 to 5	25	For low hydro-static pressure heads, used in exp./contraction joint.
	150	6	32	For moderate pressure in RCC wall or slab, wall/slap not less thicker than 150 mm.
	150	8 to 11	40	For high Hydro-static heads, in expansion/contraction joints.
	230	4 to 5	30	For medium pressure head and wall not less thicker than 230 mm.
	230	6	36	For High heads, utility same as 230 GU
	225 / 230	8 to 11	50	For High heads, utility same as 230 GU
	240	8 to 10	42	For moderate to high pressure heads, used in Power Houses & other important RCC structures.
	300	6	35	Multi Ribbed and serrated, Ideal waterstop for underground structures, in expansion/contraction joints
	300	10	52	As per IS 12200 of 1987.15058 Sketch shown, in the Dams, syphons, Aqueducts etc.
	305	9 to 12	60	A standard design of CWC for Dams & other Hydraulic structures with high pressure heads.
	150	5	20	Dumb-bell type, with double central bulb specially developed for Larson & Toubro ECC construction group
	180	10	45	For high expansion/contraction and where differential settlement is expected
	230	5	25	For medium pressure, utility same as 230 X A
	230	10	40	For high expansion/contraction & settlement joint
	230	5	25	Surface type, for expansion/contraction joints
	300	10	50	Replaceable type with a trapezoidal central bulb protruded on the same face where semi circular solid end bulbs are projected to ensure basic grip.
	230	5	25	For construction joints, externally placed type of PVC waterstop.
	320	5	30	Surface type without crack inducer, used for construction joints, approved design of CPWD.
	320	5	30	Surface type with wooden crack inducer, but same as 320 KZ.
	150	7.5	35	Replaceable without central bulb.
	300	6	35	Multi Ribbed and serrated but without central bulb for construction joints.
	240	5	25	Multi Ribs and serrations. Ideal waterstop for construction joints.