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DN1000 Extension stem double flange soft seal gate valve DIN F4 resilient seated gate valve DN450-1200 Resilient Seated Gate Valve DIN F5 resilient seated gate valve Socket connection soft seal gate valve Underground cap soft seal gate valve BS5163 rising stem soft seal gate valve Hard seal gate valve API slab Gate Valve Stainless steel flange gate valve Wafer knife gate valve Pneumatic gate valve Soft seal gate valve Extension stem gate valve UL/FM fire protection groove ends gate valve Rising stem forged steel gate valve carbon steel gate valve Stainless steel threaded gate valve DIN soft seal gate valve ANSI soft sealing gate valve 200PSI Cast iron gate valve BS resilient seated gate valve

Butterfly valve

DN900 pneumatic triple eccentric hard seal butterfly valve D643H Triple Eccentric Butterfly Valve D343H Hard seal butterfly valve Multi standard EPDM seated butterfly valve Single flange butterfly valve DN2000 Double eccentric butterfly valve Flange butterfly valve Lug butterfly valve Wafer butterfly valve with handle Worm gear operated butterfly valve Wafer lined fluorine butterfly valve Stainless steel wafer butterfly valve Stainless steel flanged butterfly valve Three eccentric flange butterfly valve Pneumatic flanged butterfly valve Pneumatic wafer butterfly valve Triple eccentric butterfly valve wafer type Wafer butterfly valve ULC approved Inflatable seat butterfly valve High performance butterfly valve Grooved end butterfly valve Electric soft seal butterfly valve Flange fluorine lined butterfly valve Handle aluminum butterfly valve Worm Gear Aluminum Butterfly Valve Full PTFE lined butterfly valve wafer type One stem no-pin wafer butterfly valve Multi standard aluminum stem butterfly valve Stainless Steel wafer Butterfly Valve Aluminium handle operated lug butterfly valve Lever Operated Flange Butterfly Valve Butterfly valve stem Butterfly valve disc Butterfly valve seat

DN1400 top-mounted eccentric semi-ball valve Flanged three-way ball valve Fully welded ball valve Natural gas ball valve High platform flange ball valve 1 PC ball valve Fixed ball valve PTFE seat flanged ball valve Metal seat ball valve API 6D ball valve 3 Piece ball valve Full Bore 3 way ball valve L-Port 3 Way T-Port ball valve 2PC Ball valve female thread stainless steel

Globe Valve

API Carbon Steel Globe Valve Bellows Globe Valve Stainless steel flange globe valve Stainless steel thread S type globe valve Stainless steel thread B type globe valve Cast Steel Globe Valve Piston Globe Valve WCB Carbon Steel Globe Check Valve electric motorized control stainless steel SS316 globe valve Brass Globe Valve Cryogenic Globe valve HT200 Globe Valve Threaded Stainless Steel Globe Valve GG25 Globe Valve ANSI API Cast Steel And Stainless Steel Globe valve

Check valve

Rubber seal check valve DN800 Slow closing check valve DN800 Rubber Disc Check Valve Butterfly Buffering Check Valve check valve with counter weight Silent Check Valve WCB Swing check valve Swing Check Valve Single Chip Check Valve H74W Stainless Steel Wafer Check Valve Swing Start Check Valve Foot check valve API Swing Check Valve DIN Flange check valve Single plate check valve Lifting Check Valve Bottom Valve Hammer Diminish Noises Check Valve Wafer Check Valve Wafer dual plate check valve

Control valve

Cage Guided Sleeve Globe Control Valve DN1000 Piston Flow Regulating Valve DN1600 Electric Actuator Flow Regulating Valve Pneumatic Flanged Butterfly Valve Pneumatic Wafer Butterfly Valve Angle Seat Valve Pneumatic gate valve Electric three-way control valve Electric sleeve control valve

Water Meter

Vertical Type Water Meters Stainless steel threaded water meter Piston water meter Plastic water meter More flow rotor dry water meter spiral vane flange water meter CI wotlman water meter with pulse output LXCLG(R) Vertical removable element woltman cold (hot) water meter Single flow rotor dry water meter Prepaid Token Water Meter Electromagnetic flowmeter Rotary Piston Liquid Sealed Water Meter Rotary Piston Liquid Sealed Water Meter

Double ball exhaust valve Doubleair Air Valve Saudi Doubleair Air Valve Southeast Asia Doubleair Air Valve South America Double Air Valve Threaded Air Valve Single Air Valve Triple Functions Air Valve Automatic Air Release Valve Automatic release valve Automatic exhaust valve Composite Exhaust Air Valve Brass exhaust valve Double Ball Air Valve

Copper valve

4" copper gate valve copper electric solenoid valve brass ball valve Brass exhaust valve Brass Globe Valve Copper Globe Valve Copper Thread Gate Valve Copper Ball Valve （Thread）Copper Strainer

Pipe Repair & Coupling

Flexible Multi-Function Pipe Coupling ZFJ-S SS Semi-Circle Pipe Repair Clamp SJW-H Ductile Iron Band Repair Clamp Stainless Steel Band Repair Clamp Double-Section Pipe Repair Coupling Folding Type Pipe Repair Single-Section Multi-Function Pipe Coupling MF-S Gear-Ring Type Multi-Function Pipe Coupling GR-S ZBW Damping Corrugated Hose

Pipe fittings

Galvanized Pipes HDPE Pipe Seamless Steel Pipe Welded Stainless Steel Pipe Grooved Steel Pipe Double flanged reducer Blank flange Angle branch tee All flange tee Flange cross Double flange bend Flange elbow 45° 90°Double socket taper /reducer Cast Iron Strainer

Forged Steel Y Strainer DIN standard Industrial Y Type Strainer for Pump Copper Strainer BS Y Strainer Flange Y-Type Strainer Cast Iron Strainer Threaded Strainer German Standard Y Type Filter ANSI “Y” Strainer

Dismantling Joint

VSSJAFC(CC2F) Detachable Flange Transmission Joint VSSJA-2(B2F) Double Flange Limited Expansion Joint VSSJA-1(BF) Single Flange Limited Expansion Joint VSSJA(AF) Flange Loose Expansion Joint JGD-B Threaded Rubber Joint ZBW Damping Corrugated Hose KXT-S Flexible Dual-Spherical Rubber Joint KXT Rubber Soft Joint Flange Adaptor

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How are water meters classified according to measurement principles?

2021-04-26

According to the measurement principle, it is divided into speed type water meter and volume type water meter.
(1) Velocity water meter: a water meter installed in a closed pipeline and composed of a moving element, which is directly driven by the speed of the water flow to obtain the power speed.
Typical speed water meters include rotary-wing water meters and screw-wing water meters. There are single-stream water meters and multi-stream water meters in rotary-wing water meters.
Screw-wing water meter
(2) Volumetric water meter: Installed in the pipeline, it is a water meter composed of a number of chambers of known volume that are filled and discharged with fluid successively and a mechanism driven by the fluid, or quantitative discharge water meter for short.
Volumetric water meters generally adopt a piston structure.

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