How to use hand pump

SB-O3-175 hand pump use:
Hand pump and emergency shut-off valve supporting the use of liquefied petroleum gas storage station for tank or tank emergency shut-off valve in the working state, the use of this pump to control the performance of the emergency shut-off valve open or closed purpose.
SB-O3-175 hand pump working principle and structure description:
Hand pump through the handle to do reciprocating action, the pressure increases to open the emergency shut-off valve, the medium can be passed, such as a fire or other emergency situations, the hand pump relief valve opens, the hydraulic system quickly pressure relief Immediately shut down the emergency shut-off valve, or when the temperature is raised above 75 ℃, the fusible plug installed on the oil pump or emergency shut-off valve melts immediately to achieve the automatic pressure relief wood, so that the emergency shut-off valve will automatically close quickly.
The main structure of the hand pump is suction plunger oil, into the valve, the valve and relief valve composition. The closed space formed by the plunger and the oil inlet and outlet valve is the working space of the oil pump. When the plunger moves upwards to make the volume of the working chamber change from small to large, the oil pressure is lower than the atmospheric pressure and the oil inlet valve is opened. The oil filter valve into the working chamber. When the plunger downward movement of the working chamber volume from large to small, the working chamber of the hydraulic pressure increases, the oil valve is opened, the pressure oil discharged into the oil system for emergency shut-off valve open. Pressure relief valve is used to relieve pressure oil pressure system set up, the work required to close the pressure relief valve, the pressure relief valve in the oil system needs to open the emergency shut-off valve closed.
SB-O3-175 hand pump applications:
The pump tank in the pump jacket body cavity, when filling the upper cover of the oil filler can be opened, such as the oil column volume is not enough can be supplemented auxiliary tank.
Strength test: 10.0MPa. Seal test: 6.0MPa. High temperature relief test: 400cc
Ancillary equipment: Station emergency shut-off valve BY-850H oil accumulator BY -962
Working pressure: 2.0 ~ ~ 6.0MPa. The maximum operating pressure: 7.0MPa
Oil chamber capacity: 4000cc. Working medium: 13 # machine oil or 2 # spindle oil

More Search Keywords: Oil Pump

dredge pumps ranging from inlet diameters of 400mm up to 1400mm. Our CFD optimized pumps have an excellent suction performance, high efficiency, long wear life and require a minimum of maintenance. The pumps can be delivered in different types of wear resistant materials, and can be executed in a large number of different configurations.

Photo of our Dredging Pump:

Single-Walled Dredge Pumps
single-walled dredge pumps are `all-round` and used in all types of dredgers. They are designed for typical pump pressures up to 16 bars, and can be excecuted with different types of pump seals such as: stuffing box, mechnical seal or hydro seal.

Double-Walled Dredge Pumps
double-walled dredge pumps are specially designed for high pressures, starting typically from 16 up to 30 bars. The double-walled pump design is based on the concept of pressure compensation between the outer-, and inner-pump casing. All types of configurations are possible such as 3,4 and 5 vane impellers, and casted or welded outer-casings.

Underwater Dredge Pumps
The underwater dredge pumps are used in cases where the highest possible suction performance is required. They basically have the same possibilities and options as our single-walled pumps have. Depending on our clients' preference they are executed with direct motor drive or integrated gearbox, with or without pressure compensation.

Casting
1)Pattern
Collection in our storehouse. Inspection of pattern in our workshop.
Pieces cast with wrong pattern due to insufficient inspection of pattern are rejected.
Free delivery of pattern (in good condition) with last cast piece of order to our client or stored in our workshop for future new production but with time-limited or quantity-bound.
2)Cast pieces
Material
The use of the cast pieces requires other chemical analysis and mechanical properties (unless otherwise mentioned on drawing).
Cast pieces group S (Wear) :
Impellers, pumphousings, dredge lines (bends, branchpipes, etc.)
Cast pieces group C (Construction) :
Other pieces as pivots, rod eyes, wire sheaves etc.
3)cast seel
GS32NiCrMo14.4.2
Chemical:
C:0.30-0.36% Si:0.60%MAX
Mn:0.60-1.00% Cr:1.00-1.70%
Ni:3.00-4.00% Mo:0.30-0.60% S:0.025%MAX P:0.03%MAX
V:0.05%MAX Cu:0.30%MAX
Mechanical:
Rm:min1100MPa;Rp0.2:≥850
A:≥8%;KV≥15J(20℃)
4)cast iron
3)Inspection
Cast pieces are presented in our workshop, for inspection of dimensions and hardness after sandblasting and machining but before conservation and painting. Measurements are carried out by our services and deviations are sanctioned as follows:
At stress concentration area, MT&PT to check the crack, the qualified standard is no crack at these area.

Dredging Pump

Dredge Pump,Dredging Equipment,Diaphragm Pump

Unisite Group Ltd. , https://www.unisitemarine.com