discount 70% in 2018-09-25 to 2018-09-27
price: USD$ 27.78
freight :USD$7.00,(Postal parcel)
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Safety valve is a safety valve, its opening and closing parts under the action of external force in a normally closed state, when the device or the medium pressure inside the pipe increases, exceeds the set value automatically open, discharge to the system through the medium to prevent the medium pressure piping or equipment exceeds the specified value. A lot of non genuine products will drip or leak after installation, so that the water has been circulating, water, electricity. Use for a long time will lose one-way function, lose this function after, but without water, water will flow back, water heater will dry, will burn the heating tube, cause safety hidden trouble. Related to security issues, for the safety of ourselves and their families, we must choose genuine goods, genuine guarantee!