SNTP Couplers Udyog Vihar, Noida, Uttar Pradesh

SNTP Weld couplers are used to connect reinforcing bars to structural steel sections or plates by the process of welding and are available for bar sizes 12mm to 40mm.

SNTP T-Bar Couplers are Tapered Thread couplers which are suitable for the majority of applications of joining of the rebars. Available to suit bar sizes 12mm to 40mm, SNTP T-Bar Couplers have a unique locking mechanism due to its self aligning thread. They are designed to achieve failure loads in excess of 125% of the characteristic strength of grade Fe 550 rebar. They are normally fitted to the end of the threaded bar and require only the engagement and tightening of the adjoining bar on site using a Pipe wrench. T-Bar Couplers are installed with quick and ease on site without the need for specially trained engineers or specialised, expensive machinery. The couplers are normally fitted to the end of threaded bar, requiring only the engagement and tightening of the adjoining bar on site. SNTP T-Bar Couplers are designed for use in concrete structures to meet the requirements of IS 16172: 2014, BS EN 1992-1-1: 2004 (Eurocode 2), ACI 918 & BS 8110 for mechanical splices. T-Bar Couplers are also compliant with BS 8597: 2015: Steels for the reinforcement of concrete. METHODOLOGY The bar ends are square cut and a tapered thread is cut onto the bar. Engagement of the bar within the coupler is simplified by the tapered thread design which aids alignment. When the bar is fully engaged within the coupler, the continuation bar is tightened using a Pipe wrench. In order to ensure correct installation, SNTP recommends the use of a torque wrench to check the tightening of the joints.

sntp rebar couplers 

R-B Coupler is a parallel threaded mechanical splicing system designed for the connection of concrete reinforcing bars from 12mm to 40mm. The thread formed on the TMT Bar is by Rolling the thread on the bar instead of cutting the thread. This prevents the reduction of steel on the cross section area of the TMT Bar. Only a single preparation equipment is required for this threading system. This system is recommended for projects in which the TMT Bars supplied are uniformly cylindrical. R-B Couplers comply with BIS 16172, ACI 318, IBC 2006, BS 8110, Eurocode 2, DIN 1045 & ASME Sec III Div .

The SNTP Tapered Thread Position coupler is used in applications in which neither bar can be rotated. Having a span of adjustability, the Position coupler can also be used as a closer between two fixed bars. A locknut is used to secure the connection when the correct degree of adjustability has been achieved. SNTP recommends that all components must be tightened using a torque wrench.

SNTP P-Bar Couplers offer a full strength connection together with enhanced fatigue resistance. Available for Bar sizes 12mm-50mm, they are suitable for projects of all size, including those requiring a high volume of couplers, such as road and rail bridges. The threaded bar ends are prepared using the cold forging method due to which there is no reduction of the cross-sectional area of the bar but there is also the enhancement of the mechanical properties of the threaded portion of the TMT Bar. SNTP P-Bar Couplers are designed to achieve failure loads in excess of 115% of the characteristic strength of grade Fe 500, 500D & 550 rebar. The application of the parallel thread differentiates P-Bar from other threaded rebar systems. Each threaded bar end is proof-loaded to a force equal or more to the characteristic yield strength of the rebar. It is the combination of these processes that provide the connection with enhanced fatigue resistance. P-Bar Couplers achieve full strength of upto 700 N/mm2 on hand tightening. P-Bar Couplers withstand high fatigue load of upto 2 million cycles. SNTP P-Bar Couplers are manufactured in compliance with IS 16172: 2014, BS EN 1992-1-1: 2004 (Eurocode 2), ACI 918 and BS 8110 for mechanical splices. METHODOLOGY Each end of the rebar to be joined is cut square and enlarged using a cold forge process. A thread is then formed on the enlarged bar end using the SNTP Threading machine. The thread is such that the cross-sectional area of the bar ends are not reduced ensuring the strength of the connection matches or exceeds that of the parent bars. SNTP P-Bar Couplers can easily be installed by hand tightening only. Use of a pipe wrench in not mandatory for tightening of the rebar to the coupler. Type-B Threading system is for positional applications where the TMT bar length is more and in situations where it is not possible to rotate the bar. Instead the Coupler is rotated.

The SNTP HD Anchor provides an alternative method of achieving anchorage of the rebar end within concrete. The HD Anchor is essentially an oversize coupler capable of carrying the full tension load of the bar when it bears against the concrete in which it is cast. HD Anchors contribute to reducing rebar congestion in heavily reinforced area, which ultimately eases the compaction process and result in better concrete quality of the structure HD Anchor removes the need for the hooked rebar end and subsequently reduces congestion, simplifying bar placement. HD Anchor provides greater flexibility in design and increases the speed of construction. Typical applications include pilecaps and beam-to-column connections. Easy to install due to its disc like design.

The Crimp-it system is a convenient system designed for in-situ bars. It is a simple and proven system to splice bars in which threads cannot be prepared The Crimp-it sleeve is swaged onto the bar ends by a portable hydraulic system. Rebar preparation is not required. SNTP’s Crimp-it system guarantees a tensile strength of at least 125% of the nominal yield strength of reinforcing bar.