Valves & Pumps

WRAS Approval, BS 6920 & Design Characteristics SJZ Metalsin supplies BS 5150 WRAS approved gate valves with the product series number of MTS-RG358. “WRAS approved” stands for “Water Regulations Advisory Scheme approved.” It indicates that the cast iron gate valves have been tested and certified to comply with the requirements and standards set by the UK Water Regulations. This certification …

Design Characteristics & Advantages Shijizhuang Metalsin supplies cast iron non-rising stem gate valves with resilient seats manufactured in accordance with BS 5150. Both the body and bonnet, as well as the gate, shall be made of either flake graphite cast iron (grey cast iron) or spheroidal graphite cast iron (ductile iron). The non-rising stem (NRS) design features a stem that …

Wedge Gate & Metal-to-Metal Seating The cast iron metal seated gate valve is usually furnished with a wedge-shaped gate, which is perpendicular to the process flow. The wedge-shaped gate valve uses two inclined seats and a slightly mismatched inclined gate (also called “wedge”) that allows for tight shutoff, even against higher pressures. The inclined wedge are designed 2.5° to 5° …

Design Characteristics & Advantages SJZ Metalsin supplies BS 5150 non-rising stem (NRS) metal seated gate valves, made from grey cast iron or ductile iron. The valves shall be furnished with flanged ends, the drilling dimensions of which shall be in accordance with BS 4504 3.2 or BS 1560 3.2. This MTS-NV507 series gate valve features its non-rising stem and hollow …

Design Characteristics & Technical Drawing SJZ Metalsin supplies metal seated cast iron gate valves with rising stem (OS&Y design), which are made in accordance with BS 5150. Generally, these valves are furnished with flanged ends (raised face) available in sizes DN50 ~ DN600 and pressures PN6, PN10, PN16 and PN25. The body and bonnet are made of cast iron, either …

Design Characteristics & Advantages The BS 5150 flanged cast iron gate valve is a type of gate valve, made in accordance with BS 5150 from either grey cast iron or spheroidal graphite cast iron, that features flanges on both the inlet and outlet sides of the valve body. These body flanges are used to connect the valve to the pipeline …