Print version

Tank clap valves



Tank clap valves completed with the actuator (control mechanism) MU (MUV) are installed on the inlet - distribution nozzle of vertical tanks for protection from petroleum products spill as a result of pipeline or shut-off valves damage while oil handling.

Their principle of action is to open the lid of the tank clap valve, which provides oil running. In case of emergency oil spill is excluded, as the functions of rapid closing and stopping the flow are provided. The equipment also prevents the reverse running of the operating product in the closed position.

The Saratov Reservoir Plant supplies own-produced tanks with the following types of equipment:

  • tank clap valves without bypass DN80 and DN100
  • tank clap valves with bypass DN150, DN200, DN250, DN300, DN400, DN500, DN 600, to simplify opening
  • side control mechanisms of tank clap valves MU
  • upper control mechanisms of tank clap valves MUV

Tank clap valves XP: design and specifications

The design appears as a body with an oblique section and a lid with a lever located on it.

In order to avoid a friction sparks, the lid is made of aluminum intrinsically safe alloys for additional explosion and fire safety. The valves are mounted inside the tank on inlet - distribution nozzle. The opening is conducted with a cord, one end of which is fixed to the lever, and the second - to the control mechanism of the tank clap valve, which fixes the lid in the open position.

When filling the tank the lid is lifted automatically due to the product stream. Closure occurs at the steam stop. When emptying the lid is lifted by the control mechanism.

Tank clap valve XP drawings

Technical specifications of Tank clap valves

Criteria XP–80 XP-100 XP–150 XP–200 XP–250 XP–300 XP–400 XP–500 XP–600
  without bypass with bypass
Diameter Nominal, DN 80 100 150 200 250 300 400 500 600
Pressure, MPa (kp/cm2) 0.16 (1.6)
Diameter Nominal, DN - - 25 25 25 25 100 100 100
Inside diameter of bypass hole dy, mm 80 100 150 200 250 300 400 500 600
Overall dimensions, mm, max:
length L 160 170 306 328 380 442 606 700 770
width 185 205 260 315 370 435 580 710 840
height H 212 281 308 370 385 504 686 840 960
Connection size, mm:
D 185 215 260 315 370 435 580 710 840
D1 150 170 225 280 335 395 525 650 770
d 18 18 18 18 18 22 30 33 36
n, pcs 4 4 8 8 12 12 16 20 20
Weight, kg, max 2.3 7 7.5 17.6 28 46.9 91.5 135 205
Service lifetime, years, min 15
Climatic category N, NF placement category 1 as per GOST 15150.69

Side control mechanisms of tank clap valves MU: design and specifications

They are necessary for opening and fixing the lid of the valve when emptying the tank. The housing itself is installed on the mount nozzle above the inlet - distribution nozzle inside the tank, and the driving gear is located outside.

The Plant SARRZ supplies the following modifications:

  • MUI with hand gear DN80, DN100, DN150, DN200, DN250
  • MUII with electrical drive DN300, DN400, DN600
MUI with hand gear MUII with electrical drive

Technical specifications of Side control mechanisms MU

Criteria MU–I MU–II
Diameter Nominal DN, mm 80–250 300, 400, 500, 600
Length L, mm 518 1676
Height h, mm 350 570
Distance to the valve Н, mm 900 1195
Distance I, мм 165 1020
Distance to the tank bottom В, mm - 1695
Weight, kg, max 15 108
Service lifetime, years, max 15
Climatic category N, NF placement category 1 as per GOST 15150.69

Upper control mechanisms of tank clap valves MUV: design and specifications

They are mounted either on the roof or on the neck of the tanks and are necessary to open the lid of the tank clap valve and fix it in the open position until the end of the draining operations.

We supply the following sizes:

  • MUV-80 up to DN80
  • MUV-250 up to DN250
  • MUV-400 up to DN400

Upper control mechanisms of tank clap valves MUV

Technical specifications of Upper control mechanisms MUV

Criteria MUV–80 MUV–250 MUV–400
Diameter Nominal DN, mm, max 80 150; 250 400
Overall dimensions, mm, max:
H 990 1820 2120
D 260 260 260
D1 225 225 225
d 18 18 18
Number of holes n, pcs 8 8 8
Weight, kg, max 17 25 30
Pressure, MPa 0,1
Срок службы, лет, не более 15
Climatic category N, T placement category 1 as per GOST 15150.69

How to buy Tank clap valves XP and actuator (control mechanism) MU (MUV) at the Saratov Reservoir Plant?

Our experts supply equipment as components of vertical tanks, and separately as well. In order to know the cost of Tank clap valves and actuator, You can:

  • call at +7(8452)250-288
  • send e - mail at  with Diameter Nominal of the necessary equipment
  • use the form "Request for quotation"


See also:

Breather valvesSamplersTank hatches
Bottom cleanout boxesNozzles, nipples, connecting pipes, fittingsFlame arresters
Tank clap valves