SLAB GATE VALVE (NON-RISING STEM)
The Non-rising stem slab gate valves manufactured by Top Wellhead Equipment
Co., Ltd. are available in temperature classes L, P, R, S, T, and U specified in API 6A. Gate valves to be used in the 350℉ or 650℉ high temperature can be supplied on request. Gate valves manufactured by our company are available in 3000psi, 5000psi and 10000psi working pressure, nominal size from 1-13/16" through 4-1/16",material classes from AA through FF, product specification levels (PSL) from 1 through 3 and performance requirement (PR) 1.
SPECIFICATION:
● Manufactured and Tested in Accordance with API Spec 6A
●Simple structure and renewable gate and seat assembly.
●One-piece and double-acting gate with long service life.
●Both thrust bearings with large load capacity and composite rubber-plastic stem lip packing minimize operational torque.
●Bearing cap is provided with a grease cup to make it easy to inject lubricating grease in the field.
●Threaded packing gland allows removal of bearings and stem packing under line pressure.
●Both the bolted bonnet and modern bonnet seal ring provide simple structure and reliable sealing.
●The sealing surfaces of the gate and seat are hardfaced for wear and corrosion resistance.
●Wave springs are installed between the body and seat and between the gate and seat. The gate and seat still maintain a positive metal to metal seal under low pressure.
●Floating gate design requests the hand wheel to be backed off 1/4 turn after its rotation can go no further.
Note:
Under pressure, the valve is forbidden to be semi-shrouded, for it will do great harm to the gate valve and great reduce the service life of the valve.
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 |
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| 5000psi Flanged Ends |
5000psi Threaded Ends |
10000psi Flanged Ends |
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| PARTS LIST |
|
Item |
Description |
Qty |
Material |
Remark |
1 |
Body |
1 |
4130 |
|
*2 |
Seat |
2 |
4130+HF |
|
*3 |
Seat Seal Ring |
4 |
NBR |
|
*4 |
Wave Spring |
2 |
410 |
|
*5 |
Gate |
1 |
4130+HF |
|
*6 |
Stem Screw |
1 |
Steel |
|
*7 |
Stem |
1 |
410 |
|
*8 |
Bonnet Seal Ring |
1 |
Steel |
|
9 |
Bonnet |
1 |
4130 |
|
*10 |
Grease Screw |
1 |
Assy. |
|
11 |
Bonnet Stud |
8 |
4140 |
|
12 |
Bonnet Nut |
8 |
5140 |
|
*13 |
Stem Seal Assy. |
1 |
Assy. |
|
14 |
Packing Gland |
1 |
Steel |
|
*15 |
Bearing |
2 |
Assy. |
|
16 |
Bearing Bushing |
1 |
Steel |
|
*17 |
Sec. Seal |
1 |
NBR |
|
18 |
Screw Housing |
1 |
Steel |
|
19 |
Lock Screw |
1 |
Steel |
|
*20 |
Lube Fitting |
1 |
Assy. |
|
21 |
Hub Assy. |
1 |
Steel |
|
22 |
Washer |
1 |
Steel |
|
23 |
Lock Nut |
1 |
Steel |
|
|
*Major Repair------─ One Each For One Year’s Service
Assembly Drawing For SLAB GATE VALVE(NON-RISING STEM) 5000psi Flanged Ends(PDF)
Assembly Drawing For SLAB GATE VALVE(NON-RISING STEM) 5000psi Threaded Ends(PDF)
Assembly Drawing For SLAB GATE VALVE(NON-RISING STEM) 10000psi Flanged Ends(PDF)
SLAB GATE VALVE (RISING STEM)
The rising stem slab gate valves manufactured by Top Wellhead
Equipment Co., Ltd. are available in temperature classes L, P, R, S, T, and U specified in API 6A. Gate valves to be used in the 350℉ or 650℉ high temperature can be supplied on request. Gate valves manufactured by our company are available in 3000psi, 5000psi and 10000psi working pressure, nominal size from 1-13/16" through 4-1/16",material classes from AA through FF, product specification levels (PSL) from 1 through 3 and performance requirement (PR) 1.
The rising stem slab gate valves manufactured by our company have the same characters as the non-rising stem slab gate valves. For it is designed by rising stem, the close and open of the valves is completely controlled .
SPECIFICATION:
● Manufactured and Tested in Accordance with API Spec 6A
●Simple structure and renewable gate and seat assembly.
●One-piece and double-acting gate with long service life.
●Both thrust bearings with large load capacity and composite rubber-plastic stem lip packing minimize operational torque.
●Bearing cap is provided with a grease cup to make it easy to inject lubricating grease in the field.
●Threaded packing gland allows removal of bearings and stem packing under line pressure.
●Both the bolted bonnet and modern bonnet seal ring provide simple structure and reliable sealing.
●The sealing surfaces of the gate and seat are hardfaced for wear and corrosion resistance.
●Wave springs are installed between the body and seat and between the gate and seat. The gate and seat still maintain a positive metal to metal seal under low pressure.
●Floating gate design requests the hand wheel to be backed off 1/4 turn after its rotation can go no further.
Note:
Under pressure, the valve is forbidden to be semi-shrouded, for it will do great harm to the gate valve and great reduce the service life of the valve.
| |
 |
 |
| 5000psi Flanged Ends |
10000psi Flanged Ends |
 |
 |
| PARTS LIST |
|
Item |
Description |
Qty |
Material |
Remark |
1 |
Body |
1 |
4130 |
|
*2 |
Seat |
2 |
4130+HF |
|
*3 |
Seat Seal Ring |
4 |
NBR |
|
*4 |
Wave Spring |
2 |
410 |
|
*5 |
Gate |
1 |
4130+HF |
|
*6 |
Stem |
1 |
410 |
|
*7 |
Bonnet Seal Ring |
1 |
Steel |
|
8 |
Bonnet |
1 |
4130 |
|
*9 |
Grease Screw |
1 |
Assy. |
|
*10 |
Stem Seal Assy. |
1 |
Assy. |
|
11 |
Bonnet Stud |
8 |
4140 |
|
12 |
Bonnet Nut |
8 |
5140 |
|
13 |
Packing Gland |
1 |
Steel |
|
*14 |
Bearing |
2 |
Assy. |
|
*15 |
Stem Screw |
1 |
Steel |
|
16 |
Screw Housing |
1 |
Steel |
|
17 |
Lock Screw |
1 |
Steel |
|
*18 |
Lube Fitting |
1 |
Assy. |
|
*19 |
Sec. Seal |
1 |
NBR |
|
20 |
Hub Assy. |
1 |
Steel |
|
21 |
Stem Cap |
1 |
Steel |
|
|
*Major Repair------─ One Each For One Year’s Service
Assembly Drawing For SLAB GATE VALVE(RISING STEM) 5000psi Flanged Ends(PDF)
Assembly Drawing For SLAB GATE VALVE(RISING STEM) 10000psi Flanged Ends(PDF)
HYDRAULIC SLAB GATE VALVE
The hydraulic slab gate valves manufactured by our company adapt hydraulic control, used extensively in the automatic control system and remote control, work steadily and use freely. Main specifications and technical parameters.
Nominal pressure: 3000psi～10000psi
Nominal size: 1-13/16″～4-1/16″
Working temperature: P U
PR1;PSL1,2,3; AA-FF;OP: 100～1500psi
 |
 |
| PARTS LIST |
|
Item |
Description |
Qty |
Material |
Remark |
1 |
Body |
1 |
4130 |
|
*2 |
Seat |
2 |
4130+HF |
|
*3 |
Seat Seal Ring |
4 |
NBR |
|
*4 |
Wave Spring |
2 |
410 |
|
*5 |
Gate |
1 |
4130+HF |
|
*6 |
Stem Screw |
1 |
Steel |
|
*7 |
Stem |
1 |
410 |
|
*8 |
Bonnet Seal Ring |
1 |
Steel |
|
9 |
Bonnet |
1 |
4130 |
|
*10 |
Grease Screw |
1 |
Assy. |
|
11 |
Bonnet Stud |
8 |
4140 |
|
12 |
Bonnet Nut |
8 |
5140 |
|
*13 |
Stem Seal Assy. |
1 |
Assy. |
|
14 |
Lower Lock Screw |
10 |
Steel |
|
15 |
Lower Gland |
1 |
4130 |
|
*16 |
Seal Ring |
2 |
NBR |
|
17 |
Cylinder |
1 |
4130 |
|
18 |
Plug |
2 |
Steel |
|
*19 |
Seal Ring |
2 |
NBR |
|
*20 |
Seal Ring |
2 |
NBR |
|
21 |
Piston |
1 |
4130 |
|
22 |
Lock Nut |
1 |
Steel |
|
*23 |
Seal Ring |
2 |
NBR |
|
*24 |
Seal Ring |
2 |
NBR |
|
25 |
Upper Gland |
1 |
4130 |
|
26 |
Upper Lock Screw |
10 |
Steel |
|
27 |
Indicator Rod |
1 |
410 |
|
28 |
Stem Cap |
1 |
Steel |
|
|
Major Repair------─ One Each For One Year’s Service
Assembly Drawing For HYDRAULIC SLAB GATE VALVE 5000psi Flanged Ends(PDF)
Assembly Drawing For HYDRAULIC SLAB GATE VALVE 10000psi Flanged Ends(PDF) |
