Fig. 7307 - HDPE Transition Coupling
The Gruvlok Figure 7307 HDPE Transition Coupling is a cost effective, easy to assemble, mechanical joint intended to connect HDPE pipe to Gruvlok standard weight roll or cut grooved steel pipe, lightweight roll grooved pipe, or Gruvlok grooved-end fittings and valves. The Figure 7307 is compatible with HDPE pipe conforming to ASTM F714, D2447, D3000, or D3035 having wall thicknesses ranging from SDR 32.5 to SDR 7.3 and any schedule steel pipe conforming to Gruvlok’s standard pipe specifications. Each coupling uses four bolts to drive sharply machined teeth into the outside of the HDPE pipe and engages a keyed section into the grooved steel pipe or fitting. When the teeth effectively grip into the pipe, it provides a secure and rigid mechanical connection with pressure capabilities exceeding that of the HDPE pipe itself without the need for costly fusion equipment. The banks of teeth are positioned away from the gasket to enhance the coupling’s sealing ability throughout the operating temperature range. As a result, the temperature and pressure capabilities of the Figure 7307 Transition Coupling exceed the highest temperature and pressure ratings of the HDPE pipe. The Figure 7307 HDPE Transition Coupling also features a low-profile contoured housing with ramps along the outside diameter. This allows the coupling to slide over most obstacles when long lengths of the pipeline are relocated.
- WARNING:
1. Gruvlok products for HDPE pipe must be installed using Gruvlok Xtreme™ Temperature Lubricant.
2. The listed gasket temperature rating may exceed the manufacturer’s temperature rating for HDPE pipe. Consult with the HDPE pipe manufacturer for appropriate service temperatures before use.
3. The Figure 7305 HDPE Coupling is intended for use on HDPE Pipe only. Use of other plastic pipe materials is prohibited.
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