Cut-off valve works for example, suppose a lid with a water tank, water from the bottom into the cylinder out of the cylinder head is equivalent to the closure of the valve.If the hand lift up the cylinder head, it is equivalent to cut-off The working principle of the valve.If the cylinder head is removed to the side by hand, it is equivalent to the working principle of the gate valve.Main standard: 1, Design standard: GB / T 12235 2, Connection standard: 1) Butt welding end BW: 12224 2) flange end RF: according to JB79; GB / T 9113; HG20592 3, the valve test and test: GB / T 13927; JB / T 9092 the following structure: open rod bracket bolted bonnet; Integral seal seat cover Details: The globe valve opening and closing pieces are cylindrical valve disc, the sealing surface was flat or cone, the valve flap along the centerline of the fluid for linear motion. Stem movement form, lifting rod (stem lift, hand wheel does not lift), there are lifting rotary rod (hand wheel with the stem rotating together, the nut is located in the valve body). Cut-off valve is only suitable for full open and closed, custom made to allow for regulation and throttling. When the valve is open, the valve opening height, 25% to 30% of the nominal diameter, the flow has reached its maximum, indicating that the valve has reached the fully open position. Therefore, the full-stop position of the valve, valve stroke should be determined.
GH High Head Gravel Pump
1. Description of GH sand and gravel pump
Naipu G series Gravel and sand slurry pump is
designed specifically for continuous pumping of extremely aggressive
slurries, with a wide particle size distribution. Capable of handling
large particles at consistently high efficiencies results in low cost of
ownership. The large volume internal profile of the casing reduces
associated velocities further increasing component life.
Typical Applications---
Slag Granulation
Suction Hopper Dredging
Dredging
Barge Loading
Sand Reclamation
Sugar Beet
2. Construction drawing for Naipu GH sand and gravel pump
3. Select chart of GH sand and gravel pump
4.Performance parameters of GH sand and gravel pumps
Gravel Pump, Sand Pump,High Head Gravel Pump,GH Gravel Pump,Dredging Pump,Sand Gravel Pump
Shijiazhuang Naipu Pump Co., Ltd. , https://www.naipu-pump.com