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Gate Valves

Gate valves are devices used to isolate utility distribution, industrial or HVAC pipelines.  Other phrases used to describe gate valves include Stop valve, Line valve, Wedge gate valve and Sluice valve, but not to be mistaken for a Sluice gate which frequently used to refer to a penstock.  Gate valves are not intended for modulation or flow control duties. 

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29 Items found

12 24 36 All

29 Items found

12 24 36 All

Gate Valves

T-T offer a wide range of waterworks gate valves designed to British and European Standard for potable water, wastewater, sewage and fire main duties.  Most gate valves used within the waterworks industry tend to have non-rising stems, also known as inside screw, which means that the stem remains within the valve body. 

Metal seat gate valves have non-ferrous metal faces to achieve a seal and are suited to wastewater and sewage duties.  While resilient seated gate valves comprise a rubber-encapsulated wedge and are suited to water and clean neutral fluids.

WRAS (Water Regulations Advisory Scheme), independently tests products to demonstrate compliance with the Water Supply (Water Fittings) Regulations and Byelaws in Scotland.  T-T have many valves that have successfully granted this approval.

 

Metal Seat Gate Valves

Metal seat gate valves are intended to isolate flow within pipelines.  This valve consists of an epoxy-coated iron body with bronze seat rings, the wedge with corresponding copper-alloy seat rings traverses along a threaded stainless steel non-rising stem, a water-tight seal is achieved when the two sets of precision machined seat rings align.  The nature of the design ensures the internal cavity is full of water, thus continually lubricating ensuring operational longevity. 

Metal seat gate valves are designed to exceed the requirements of BS5163 and EN1074, rated to either PN10, PN16, PN25 or PN40 on request, available from DN50 and various flange drilling configurations, including EN1092, BS10 and ANSI Class 150. Metal-seated gate valves are ideally suited to clean (potable or natural) water, raw water or wastewater/sewage where suspended solids exist and are generally operated through a handwheel, tapered square cap, gearbox or powered actuator.

 

Resilient Seat Gate Valve

Aquavault is a resilient seat gate valve which is intended to isolate flow within pipelines. This valve consists of an epoxy-coated iron body, a wedge fully encapsulated in EPDM traverses along a threaded stainless steel non-rising stem, and a water-tight seal is achieved when the wedge seals against the internal body profile.  

Resilient gate valves are designed to exceed the requirements of BS5163 and EN1074, rated to either PN10, PN16 or PN25 on request, available from DN50 and various flange drilling configurations, including EN1092, BS10 and ANSI Class 150. Resilient-seated gate valves are ideally suited to clean (potable or natural) water and generally operate through a handwheel, tapered square cap, gearbox or powered actuator.

 

Gate Valves FaQ

What does PN (Pressure Nominal) mean?
What is the difference between NRS and OS&Y gate valves?
What is the difference between Cast Iron and Ductile Iron?
What are the design constraints?
Can gate valves be used at end of line?
How are gate valves operated?