What does the gate valve model SZ45X 10 mean?

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It is an underground soft seal gate valve. 10 is for stress.

According to the provisions of the "JB T 308-2004 valve model preparation method".

z Gate valve. 4 Flange connection.

1. Structural form: wedge-type single ram.

x Sealing surface material: rubber.

16== Pressure Rating:

Q== Body Material: Ductile Iron.

Gate valve (z) flange connection (4) wedge single gate (1) rubber soft seal (x) -16 pressure (q).

Z41X-16Q represents a rubber soft seal open rod gate valve, flange connection, pressure 16 kg, valve body made of ductile iron.

Split the model number.

Inside: Z represents the gate valve capacity, 4 represents the flange connection, 1 represents the open rod wedge single gate structure, X represents the sealing surface material is rubber, 16 means the nominal pressure is 16 kg, and Q means that the valve body is made of ductile iron.

The movement direction of the Z45T-10Q ductile iron dark rod flange gate valve gate valve is perpendicular to the fluid direction, and the gate valve can only be fully opened and closed, and cannot be adjusted and throttled. The ram has two sealing surfaces, and the two sealing surfaces of the more commonly used mode gate valve form a wedge-shaped and wedge-shaped angle valve.

Z45T-10Q ductile iron dark rod flange gate valve has low flow resistance. The medium channel inside the valve body is straight, and the medium flows in a straight line, and the flow resistance is small. It is more labor-saving when opening and closing.

This is compared to the shut-off valve, because the direction of movement of the ram is perpendicular to the direction of the medium flow, whether it is open or closed.

Gate valve precautions.

When operating, the human body should not be facing the top of the valve stem to prevent the valve stem from being sprayed out under pressure and injuring people.

The switch operation should be stable and the force should be uniform, and it is strictly forbidden to use impact force.

The design of the strength of the handwheel (handle) is based on the torque value required for operation, so the handwheel (handle) cannot be used as an operating pedal and arbitrarily increased or socketed to lengthen the lever, or a wrench to excessively increase the torque, let alone use ropes and other acts on the handwheel (handle), and then use a crane or pulley to operate or lift the valve.

Gate valve Z45T-10Q refers to the copper sealed gate valve made of ductile iron with a nominal pressure of 1MPa (10 kg). The meaning of its letters and numbers is:

z stands for - gate valve;

4 means - flange connection;

5 means - dark rod structure;

T indicates that the sealing surface of the seat is made of copper or copper alloy;

10 means - nominal pressure 1 megapascal;

Q indicates that the body is made of ductile iron.

z: Gate valve (valve type).

4: Flange type (connection method).

5-wedge-type single ram (structural form).

T-copper alloy (sealing surface material).

10q stands for 10 pressure.

The review is as follows:According to the standard JB T 308-2004 "Valve Model Preparation Method".

J: Globe valve.

1: Female thread connection.

1: The disc is unbalanced, and the flow channel is straight.

X: The sealing surface material is rubber.

10: The nominal pressure is PN10

The body material code is not marked, and the body is gray cast iron.

The globe valve, also known as the shut-off valve, is a forced sealing valve, so when the valve is closed, pressure must be applied to the disc to force the sealing surface not to leak. When the medium enters the valve from the bottom of the valve disc, the resistance that needs to be overcome by the operating force is the friction between the valve stem and the packing and the thrust generated by the pressure of the medium, and the force of closing the valve is greater than the force of opening the valve, so the diameter of the valve stem should be larger, otherwise the failure of the top bend of the valve stem will occur.

How it worksThe globe valve, also known as the cut-off door, is one of the most widely used valves, and the reason why it is widely popular is that the friction between the sealing surfaces in the opening and closing process is small, relatively durable, the opening height is not large, the manufacturing is easy, and the maintenance is convenient, not only suitable for medium and low pressure, but also suitable for high pressure. The closing principle of the globe valve is to rely on the pressure of the valve stem to make the sealing surface of the disc and the sealing surface of the valve seat fit tightly to prevent the flow of medium. China's valve "three to give" has stipulated that the flow direction of the globe valve is all top-down, so there is directionality when installing.

According to the standard JB T 308-2004 "Valve Model Preparation Method".

J: Globe valve.

1: Female thread connection.

1: The disc is unbalanced, and the flow channel is straight.

X: The sealing surface material is rubber.

10: The nominal pressure is PN10

The body material code is not marked, and the body is gray cast iron.

It is a gate valve made of low-pressure dark rod cast steel.

Replacing the traditional cast iron valve Kjeldahl door, compact structure, reasonable design, good valve rigidity, smooth channel, large flow coefficient and small flow resistance coefficient, simple structure and easy maintenance. The models are Z45H-10C, Z45H-16C, Z45H-25C. Its sealing surface is made of stainless steel and cemented carbide for a long service life.

The use of flexible graphite filler, reliable sealing, light and flexible operation.

Z45T-10 is one of the sizes of Z45H-16C dark rod gate valve, the other is Z45-16(C).

Z45X-16Q, Z means gate valve, 4 means flange connection, 5 refers to dark rod gate valve, X means rubber seal, 16 refers to nominal pressure; RVHX represents the right of the manual gate valve, 150 refers to the caliber of DN150, and 10 represents the nominal pressure. RVHX dark rod elastic seat seal gate valve was the first special model of Guanlong Valve Factory, while Z45X is the national standard model.

The RVHX dark rod elastic seat seal gate BAI valve was the first DU special model of Guanlong Valve Factory, and Z45X was the national standard model. DAO due to Shanghai Guanneilong valve ****.

Rongzhong was more famous in the elastic seal gate valve, so the RVHX type is also more famous, so other manufacturers also use the RVHX model to compete with Guanlong.

RVHX: Dark rod elastic seat seal gate valve.

0150: Specification: DN150

10: Pressure Rating:

Z45X-16Q This is a national standard model.

z Gate valve. 4: Flange type.

5: Dark rod. X: Rubber seal, that is, elastic seat seal.

16== Pressure Rating:

Q== Body Material: Ductile Iron.