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GATE VALVE WITH LOWER BALANCING STEM AND RISING SPINDLE
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 Manually operated flanged gate valve is employed as shutoff unit. To be installed in Christmas Trees or at pipelines to shutoff fluid flow in oil and gas wells.
Nominal bores: DN 50; 80 mm, nominal pressure PN 70 МPа.
Working medium temperature to +121оС.
Fluid temperature: up to +120оС.
To be employed in regions with temperate climate.
| Description |
Dimensions, mm |
Weight,kg |
| L |
H |
D |
D1 |
D2 |
D3 |
d |
| ЗМС-50х70 |
521 |
956 |
52 |
200 |
158,8 |
86,2 |
24 |
195 |
| ЗМС-80х70 |
619 |
1185 |
78 |
270 |
216 |
119 |
29 |
340 |
Design of Gate Valve with Lower Balancing Stem and Rising Spindle
Main design features and advantages
- High strength and reliability of die-forged body parts.
- API material classes - АА; ВВ.
- The design of gate valve provides replacing stem seal without dismount from Christmas Tree..
- Lower balancing stem together with two journal bearings makes it possible easily to control the valve.
- Spindle is rising.
- Gate valve is provided with indicator of shutting element position.
- Bonnet is fastened to body with stud bolts and sealed "metal-to-metal".
- Sliding nut is out of working medium affect that makes it more reliable.
- Gate is connected with spindle through the slot that ensures it's self-positioning.
- Gate valves conform to the requirements of API Spec 6A.
- Lubricator is fed to seats under pressure.
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