Three-way valve for pressure gauge (DN10-50, PN 1.6-6.3 Mpa)


for purging, checking and disconnecting pressure gauges installed on steam boilers and other devices operating under overpressure up to 6.3 MPa.

Dn 10-50, Ru 1.6-6.3 Mpa

Connection to the pipeline is coupling or fitting.

A three-way crane for a Russian-made pressure gauge is designed

Only stainless steel housing design.

Production: ЗАО «Арматурная Компания «ФОБОС», Россия
Cost: по запросу
Working mediumMedia where the valve material is corrosion-resistant
Working medium temperature – 60°С…+160 °С
The tightness class of the gate according to GOST 9544-2015А
Climatic version according to GOST 15150-69U1 (-40°C…+40°C) or UHL1 (-60°C…+50°C)
Handle turning force, N40 max
Total service life, cycles8000
The full service life10

A three-way ball coupling valve with a lock (see Fig.1) consists of a housing 1 and fittings 2.
The fluoroplastic saddles 3 are pressed against the plug 4 when tightening the fittings.
The connections of the housing with the fittings are sealed with gaskets 5. The spindle 6 is sealed with a set of fluoroplastic rings 7 and
a ring 8. The compression of the rings 7 is performed by a nut 9. The crane is switched manually by turning the handle 10, which is fixed on the spindle with a nut 11. The lock 12 is designed to lock the handle from turning in various working


Download (small catalog)


1BodySteel 12X18N10T
2FittingSteel 12X18N10T
3SaddleFluoroplast F4
4Tube Steel12X18H10T
5PadFluoroplast F4
6SpindleSteel 14X17N2
7RingFluoroplast F4
8RingFluoroplast F5
9BushingSteel 14X17N2
10HandleSteel 12X18N10T


Supply of the working medium – according to the scheme (see Fig.2.)
In position 1, pressure measurement is carried out,
in position 2, pressure relief from the pressure gauge,
in position 3 – purge.
It is possible to connect a control pressure gauge to the middle branch pipe through
an adapter.
The control is carried out in position 4.


Fluoroplast resistance diagram

The three-way valve for the pressure gauge is designed for connecting, checking and purging control and measuring devices. It is installed on boilers, pipelines, vessels, tanks and equipment operating under pressure. It can be used as a shut-off and distribution valve for merging and separating flows. Working environment – hot and cold water; wet and superheated steam, light oil products, natural gas, air and other substances with weak chemical activity.


General description

The crane is assembled in a 12X18N10TL stainless steel housing. It has:


  • three connecting fittings;
  • locking ball plug with a T-shaped hole;
  • sealing seat made of polymer;
  • rotary spindle;
  • steel handle;
  • sealing elements made of fluoroplast.


When the pressure of the transported medium is up to 0.6 MPa, the fitting connection of the three-way valve for the pressure gauge can be replaced by a conventional coupling.


Operational characteristics

  • working pressure up to 6.3 MPa (63 kg/cm2);
  • temperature from -60°C to +160°C;
  • climatic version of UHL1 from -60°C to +50 °C;
  • the turning force of the handle is not more than 40 N;
  • estimated resource 8000 cycles;
  • the service life is 10 years.


Structurally, the three-way crane has 4 working positions:

  • Working connection.
  • The pressure gauge is disabled.
  • Connection of the control device.
  • Purge and check for zero.


The control is carried out by moving the rotary knob in one of these directions. When installed on steam pipelines, purging must be performed every shift.



The price of three-way valves for a pressure gauge varies depending on many factors, including the design of pressure, diameter and material. Additionally, the individual wishes of the customer are taken into account.

You can buy a three-way crane at a low cost in JSC “RC “Fobos” by making an application by phone 8 (800) 700-62-60 (Moscow and all Russia) or using the services of regional managers, as well as by e-mail

Delivery of cranes for the pressure gauge is carried out by the services of transport companies – Business Lines, PEC. Also, transportation is carried out by rail Zheldorexpedition and other types of delivery with payment for transport services and cargo insurance services by the buyer.

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