McAlpine Z28M-NRV Multifit Universal Waste Pipe 50mm 2" Inline Non Return Valve

Product Information

With flow in the forward direction the diaphragm deflects inwards (A) allowing easy passage of the liquid with little pressure loss.

Valves | Pipe Valves | Wolseley Check Valves | Pipe Valves | Wolseley

This type of approval demonstrates full compliance with the requirements of the regulations and bye-laws, provided the fitting is installed according to any conditions given with the approval.As a classification society, DNV GL sets standards for ships and offshore structures – known as Class Rules. Material Certification (on request) Many of our marine valves can be pressure tested, witnessed by a classification society and supplied with 3. The elastic memory of the diaphragm is time dependant and, if left open for long periods, may result in slow closure of the valve under reverse flow with subsequent leakage.

Norval - Northvale Korting Norval - Northvale Korting

Non-electrical devices and components group II ATEX II 2 GD c T2 Non-electrical Valves EC-Certificate is issued according to Article 8(1) b) ii) of Council Directive 94/9/EC for equipment and protective systems intended for use in potentially explosive atmospheres (ATEX). Additionally, different body materials are available including bronze, cast iron, fabricated steel and 316 stainless steel. Unlike conventional check valves, the more arduous and frequent the operating cycle the better Norval works.in) to 200 mm (8 in) diameter for mounting between adjacent pipe flanges to BS 4504 NP 16 or equivalent. Essentially for ‘foot valve’ applications where single flange bolting to the end of a pipe is necessary. M-Bus (Meter-Bus) Protocol Communications Output M-Bus (Meter-Bus) is a European standard (EN 13757-2 physical and link layer, EN 13757-3 application layer) for the remote reading of water, gas and electricity meters.