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Products Your Position:Homepage > Products > Reducing valve > 25 p sent her type steam pressure reducing valve
Product introduction:
25P pilot film steam valve Overview:

This series valve is the company with reference to foreign advanced products and successfully developed a new type of pilot-large diaphragm valves, this product on the basis of ordinary valves do a lot of improvement. Patch uses a new material and greatly increase the type of formula for the area, and therefore the valve upstream or downstream pressure load subtle changes can be timely and accurate feedback to the main valve diaphragm to regulate the opening of the main valve, ensure the stability of the downstream pressure.
Another prominent feature of this product is: can be installed on the same body, and a plurality of pilot valves in exchange regulator, while achieving temperature control, upstream pressure control, remote switch control.


Pilot film steam valve main technical parameters:
Nominal pressure (MPa) 2.5
Shell test pressure (MPa) 3.75
Sealing test pressure (MPa) 2.5
Maximum inlet pressure (MPa) 2.5
Outlet pressure range (MPa) 0.02-1.6
Pressure characteristic deviation (MPa) GB12246-1989
Flow Characteristics deviation (MPa) GB12246-1989
Leakage GB12245-1989




Pilot film steam valve Main parts and materials:
Part name parts and materials
Body, bonnet WCB
Seat 2Cr13
Valve 2Cr13
Stem 2Cr13
Diaphragm 1Cr18Ni9Ti
Adjusting spring 60Si2Mn


1. The maximum reduction ratio up to 20: 1, the last two with a period of decompression can be realized now.
2. Due to the large diaphragm, and using external detection configuration, it can control stable secondary side pressure.
3. Due to the large Cv values, leap flow and control capabilities improve, than the usual nominal diameter of 1 to 2 small number of products can be used.
4. As the valve is a single spherical, its improved sealing, leakage is minimal.
5. manage the low pressure 0.02Mpa below.


Body: steel / stainless steel trim: Stainless steel Diaphragm: Stainless steel.
* Secondary side pressure detection method:
Generally external measuring method, also produces internal detection method other specifications of the product, but it Cv value to be small.
* Maximum reduction ratio: 20: 1.
* Secondary side to adjust the pressure: one side pressure (gauge) of 85% or less.
* Minimum pressure: 0.05 Mpa (0.5kgf / cm2).
* Seat leakage: 0.01% below the rated flow.

The next product:ZSMJ- rapid shut-off valve

The previous product:V230 self-reliance type pressure regulator

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