Valve Safety shut-off KPZ 100N. Valves KPZ. For controlled pressure

Characteristics

Description

Name of parameter or characteristics	Values \u200b\u200bby types and versions
Name of parameter or characteristics	KPZ-50N (-01)	KPZ-50B (-01)	KPZ-100N (-01)	KPZ-100B (-01)	KPZ-200N (-01)	KPZ-200V (-01)
1 Increased environment	Natural gas according to GOST5542-2014
2 Maximum operating pressure at the entrance, MPa, no more
3 Nominal diameter, mm
4 Range of triggering when the controlled pressure is reduced, MPa	from 0,0003 to 0.003	from 0.003 to 0.03	from 0,0003 to 0.003	from 0.003 to 0.03	from 0,0003 to 0.003	from 0.003 to 0.03
5 Range of triggering when improving controlled pressure, MPa			from 0.0014 to 0.012 (0.012 to 0.075 *)	from 0.03 to 0.16 * (0.16 to 0.75)	from 0.0014 to 0.012 (0.012 to 0.075 *)	from 0.03 to 0.16 * (0.16 to 0.75)
6 Trigger Accuracy,% - for controlled pressure: ● to 0.005 MPa ● Over 0.005 MPa
Grade 7 shutter tightness	And according to GOST 9544-2015
8 Type of accession	Flange in accordance with GOST 33259-2015, IP for pn \u003d 1.6 MPa
9 Construction Length, mm
10 dimensions, mm, no more: - Length - Width - Height
11 mass, kg, no more
* Provided by a set of replaceable springs

Valve reliability indicators:

average work on failure, hours, not less - 40000;
the average service life, years, not less - 30.
service life, years - 40.

After an average service life, the further operation of the valve is allowed after diagnosing.

Purpose of the product

Valves Safety shut-off KPZ are designed to automatically stop supplying gas to consumers with an increase or decrease in the specified values \u200b\u200bof the controlled gas pressure.

The valve meets the requirements of TU 4859-024-36214188-2000,

Technical regulations of the Customs Union Tr Ts 016/2011 "On the safety of devices working on a gas-shaped fuel", TP TS 010/2011 "On the safety of machines and equipment", the requirements of federal norms and rules in the field industrial safety "The rules for the safety of gas distribution networks and gas consumption", SP 62.13330.2011.

The valve is made by the following versions:

with a nominal diameter of DN 50, DN 100, DN 200 mm;
with a maximum operating pressure of 1.2 MPa;
low controlled pressure (H);
high controlled pressure (B);
with controls of the control mechanism located on the left in the direction of gas flow (basic execution);
with the controls of the control mechanism, located on the right in the direction of the gas flow (execution -01).

At the request of the customer, the valve can be equipped with a trigger sensor.

1 - body; 2 - valve; 3 - axis; 4.5 - springs; 6,16 - levers; 7 - control mechanism; 8 - membrane; 9 - rod; 10,11 - springs; 12 - emphasis; 13.14 - sleeve; 15 - tip; 17 - Planck

Figure 1. Valve Protective Low Controlled Pressure

Figure 2. Valve Safety shut-off high controlled pressure

Product

Dimensions, mm.

h1.

h2.

b1.

D 1.

b 2.

KPZ-50N (B)

160 (319)

□ 125

(108)

KPZ-100N (B)

270 (241)

446 (469)

203 (361)

(75)

KPZ-200N (B)

Principle of operation of the valve

The valve works as follows.

Controlled pressure is supplied to the subable cavity of the control mechanism, providing the position of the tip in the middle position. With an increase or decrease in the pressure in the subable cavity, the tip is moving in one direction or another, and the stop mounted on the lever comes out of the tip gearing, frees the associated levers and gives the ability to turn the axis, while the tip hold The vertical position must be within 0.2 ... 0,5. If necessary, it is regulated by moving the lever strip.

The force from the springs is transmitted to the valve, and the valve overlaps the gas flow.

Bringing the valve to the operating state after the triggering is performed manually by turning the levers before fixing them with the tip, and the valve is held in the open position.

If you want to buy fittings in an amount of over 10 tons. Delivery in Moscow IS FREE!!!
There is a system of discounts.
Permanent quality control of metal products - Armature A500C and A3. Buy fittings wholesale for special conditions from 20 tons of products.

New arrival:

The price is per ton for b / n expert:

159 * 4- 32300r.-9 tons
159 * 4,5-32000r.-2 tons
159 * 5-31800r.-6 tons
159 * 6-32200r.-4 tons

Our organization offers a huge range of pipes from black steels

To date, ferrous metal pipes are the most common type of pipes that are used in many industries. Black pipes are actively used in agriculture, oil and gas sector, chemical industry, engineering, private and commercial construction. On the russian market They are found like black pipes or black metal pipes.

As a rule, ferrous pipes are made of steel or cast iron. They are produced in accordance with the modern Gostas of the Russian Federation and TU ( technical Conditions). Steel-Pro company offers a wide range of black metal pipes, which are characterized by high strength and reliability.

Metal grid

Thanks to mine structural features, steel grid Found widespread use in different industries Industry: mechanical engineering, construction, mining, agriculture, food Industry, as well as used as fences and fences for personal purposes.

Our company invites you to familiarize yourself with the range metal gridspresented with such positions as a road grid, masonry mesh, plaster grid, reinforcement mesh, front grid, chain grid, galvanized grid, reinforced grid, stainless grid, CPVS mesh (all-metal-exhaust grid) and other construction steel grids.

Type: Valve Protective-stop.

The KPZ valve is designed to automatically stop supplying gases to consumers with an increase or decrease in the controlled gas pressure from the specified limits.

The valve safety-shuttering CPZ is made with a conditional passage of Du 25, 50, 100, 150, 200, a low, medium or high controlled pressure, with the levers of the control mechanism located on the right or on the left in the direction of the gas flow.

The operating conditions of the regulators must comply with the climate execution of U2 GOST 14140-69 with ambient air temperature from minus 45 to plus 40 ° C.

Examples legend Valves:

Valve Protective-locking DU50, low controlled pressure with a response range (0.0003 - 0.075) MPa with levers of the control mechanism located on the left in the direction of the gas stream:

Valve KPZ-50P TU 3712-002-72549424-2012.

The valve of safety-shut-off Du 100, highly controlled pressure with a response range (0.003-0.75) MPa with the levers of the control mechanism, located on the right in the direction of gas flow:

Valve KPZ-100VP TU 3712-002-72549424-2012.

Maintenance specifications and valve parameters of the KPZ

Operating pressure at the entrance: no more than 1.2 MPa.

Working environment: Natural gas according to GOST 5542-87.

Trigger Accuracy: ± 5%.

Valve response time: no more than 1 second.

Type of accession to the pipeline: flange according to GOST 12820-80 per suspended pressure of 1.6 MPa.

Service life: at least 10 years.

Warranty liabilities: 12 months from the date of commissioning, subject to the compliance with the rules for storage, transportation, installation and operation.

Lifecycle: up to 15 years.

Name of parameter or size	KPZ-25	KPZ-50.	KPZ-100.	KPZ-150.	KPZ-200.
Conditional pass, do	25	50	100	150	200
Limits of adjustable pressure, MPa, lower KPZ-N. KPZ-S. KPZ-B.	0,0003-0,003 0,001-0,012 0,003-0,03
Limits of adjustable pressure, MPa, top CRZ-N. KPZ-S. KPZ-B.	0,002-0,075 0,06-0,32 0,03-0,75
Building length, mm	160	230	350	480	600
Width, mm.	200	240	246	350	400
Height, mm.	320	360	435	600	700
Mass, kg.	5	8	32	80	110

After 15 years of operation, the PPP valve is disposed of.

Contents of delivery. The package of safety valve valve includes:

The valve of the CPR according to the order - 1 pc.

Passport KPZ PS - 1 pc.

Set setting springs (additionally by order).

Device and principle of valve valve

The KPZ valve consists of a cast case 1. Inside the case there is a saddle, which is overlapped with a valve 2 with a rubber seal. The valve 2 is fixed on the axis 3, which is placed in the housing 1. The springs 4, 5 are installed on the axis 3, one end of which rests on the housing 1, the other - in the valve 2. At the end of the axis 3, the lever 6 is rigidly fixed, which connects With a lever 16. On the case 1, the control mechanism 7 is fixed, which has a membrane 8, rod 9 and the tip 15 pinned on the rod. The tip 15 is engaged with a stop of 12 lever and does not give it to turn it. The membrane is backed by controlled pressure and springs 10, 11, the effort of which are adjusted by bushings 13, 14.

The valve of the PPP works as follows:

The controlled pressure is supplied to the subable cavity of the control mechanism 7, causing the position of the tip 15 in the middle position. With an increase or decrease in the pressure in the subable cavity above the adjustment limits, the tip 15 is moving to the left or right and the stop 12 mounted on the lever 16 comes out of the tip 15, frees the associated levers 16 and 6, allowing the axis of the axis 3 to turn. Effort from the action of springs 4.5 is transmitted valve 2, which closes the gas passage. Bringing the valve 2 to the working condition after the triggering, it is performed by manually by turning the levers 6, 16 before fixing their tips 15 and the valve 2 is held in the open position.

Valpana brand	BUT	B.	N.	D.	n.
KPZ-25	160	200	320	85	4
KPZ-50.	230	240	360	125	4
KPZ-100.	350	246	435	180	8
KPZ-150.	480	350	600	240	8
KPZ-200.	600	400	700	295	12

Dimensions of the Controlled Pressure


valve KPZ-50N (B) execution 1	valve KPZ-50N (B) Execution 2

valve KPZ-100N (B) execution 1	valve KPZ-100N (B) Execution 2

Safety instructions when working with valve valve

When installing and operating valves operate general provisions According to the safety technique in accordance with the requirements of GOST 12.2.003-91, GOST 12.2.063-81, GOST 12.1.019-79, GOST 12.2.007.0-87, "Security Rules in Gas Economy" and section II SNiP 2.04.08 87.

The KPZ valve cannot be installed in ambient environments that are destroying active on cast iron, steel, aluminum, rubber and zinc coating.

All installation work should be performed in the absence of pressure in the process pipeline.

The valve of the KPZ should be installed so that the direction of the stream coincides with the direction of the arrow on the valve body.

In order to avoid accidents and accidents, it is prohibited:

Troubleshooting or repairing a working valve, when the gas smell appears at the installation of the valve installation, to smoke, light the match, include electrical lighting (if it is not performed in an explosive version).

Installation and preparation of the valve of the CPP to work

Preparation of the product for installation.

Unpack the bullpen valve, remove transport plugs.

Determination of surfaces of valve parts from lubrication.

Check the visually appearance of the valve on the lack of mechanical damage.

Accommodation and installation.

The valve of the CPP should be installed in front of the pressure regulator on the horizontal section of the gas pipeline. The membrane should occupy a vertical position.

The pulse tube must be attached to the gas pipeline after the regulator and, if possible, have a bias up from it and not to have sections in which condensate can be accumulated.

Installation and connection of the CPZ valve should be made by specialized construction and operational organizations in accordance with the approved project, the technical conditions for the production of construction and installation work.

Operation of the valve of the KPZ.

First, the valve is configured to the upper limit of the triggering, changing the spring force 11 rotation of the sleeve 14. During setting the pressure in pulse tube It should be supported slightly below the installed upper limit, and then slowly increase the pressure and make sure that the valve is triggered with the upper limit.

When setting the lower valve trigger limit to the bushow rotation 13 changes the spring force 10. During configuration, the pressure in the pulse tube should be maintained slightly above the installed lower limit, and then the melo reduce the pressure and make sure that the valve is triggered with the installed lower limit. After the configuration is completed, to increase the pressure in the pulse tube and make sure the valve is triggered at the upper limit settings. The text is copied from the site www.set.

Maintenance Valve CPP

Maintenance of the KPZ valve must be carried out in the timing provided for by the schedule.

Technical inspection, checking the settings and valve triggering should be carried out once a month.

Planning and preventive valve repair should be carried out at least once a year.

The list of works produced by maintenance, shown in the table below.

The content of the work	Technical requirements	Devices and materials required for work
External valve inspection for external damage.	Lack of external damage.	Visually.
Check the tightness of the compound of sealing surfaces.	Gas leakage is not allowed.	Soap emulsion.
Check the tightness of flange connections.	Gas leakage is not allowed.	Soap emulsion.

Characteristic components of the valve of the CPR and the methods of their elimination

Name	Probable reason	Remedy
1. After closing the valve, gas continues to flow.	1. A loose fit of the working valve to the saddle.	1. Check the condition of the surrounding surfaces of the seat and valve. 2. Check for scratches on the saddle. 3. Check the elasticity of the seal of the work valve.
2. Control levers are not installed in the working position with a normal pressure controlled.	1. Clogging of the pulse tube. 2. Singing the rod of the control mechanism. 3. Breakthrough membranes of the control mechanism.	1. Clear and purge the pulse tube. 2. Replace faulty parts. 3. Replace the membrane.
3. The axis with the lever of the control when turning is hired.	1. The sealing ring is damaged.	1. Replace the ring.

Transportation and storage of valves KPZ

Transportation of the KPZ valves in a packaged form can be carried out by any type of transport, except for maritime, in accordance with the rules for the transport of goods acting in this type of transport.

The transportation conditions of the valves must comply with the storage conditions of 7 GOST 15150-69.

The storage of the valves in the packaged form should be made by storage conditions 2 GOST 15150-69.

With long-term storage in the warehouse, the valves must be subjected to reconservation after one year of storage by conservation oil K-17 GOST 10877-76 or other lubricants for products of group II according to the protection version of the VZ-1 GOST 9.014-78.

Shelf life is not more than 6 years.

It is allowed to transport valves in universal containers Without packing with styling products with rows, separating each row by gaskets from boards, plywood, etc.

designed for automatic continuous gas control and shutdown natural Gas According to GOST 5542-87, to the consumer in case of emergency raising or lowering the output pressure over the permissible given values.

Valves are manufactured with conditional passage D. 50 mm low and high controlled pressure.

Specifications KPZ-50

	KPZ-50N	KPZ-50V.
Adjustable environment	natural gas according to GOST 5542-87
Operating temperature range, ° C	from -30 to +60
Operating pressure range, MPa	0,05-1,2	0,05-1,2
Warning setting range, MPa:
when lowering the output pressure	0,0005-0,03 (0,0005)	0,009-0,3 (0,03)
when improving output pressure	0,0017-0,09 (0,0017)	0,07-0,9 (0,075)
The error of response from the nominal setting value,%, not more than:
when improving pressure	± 5.	± 5.
with a decrease in pressure	± 10.	± 10.
Conditional pass, D. U, mm.	50	50
Connection type	flange according to GOST 12817-80
Saddle diameter, mm	50	50
Building length, mm	220	220
Overall dimensions, mm	220 × 220 × 350	220 × 250 × 350
Mass, kg, no more	19	20

Device and principle of operation of the KPZ-50

Valve Safety shut-off KPZ (see Figure) consists of a welded body 1, inside of which the side of the inlet pipe is located 2, which is overlapped with a valve 3 with a rubber seal.

The valve 3 using the lever 4 is fixed on the axis 5, which is placed in the case 1.

On the axis 5, the tweed twist spring was installed, the ends of which are based on the inner surface of the housing 1, and the middle part, made in the form of a loop, presses through the lever 4 valve 3 to the saddle 2.

At the end of the axis 5, the lever 7 is fixed, the lever 7 is fixed, which comes into engagement with the bracket of 8 stock 9 of the mechanism of control.

Control mechanism designed for continuous pressure control R out and issuing a signal to trigger shut-off valve 3 In the executive device of the CPR in an emergency increase and decrease in the controlled pressure from above the permissible given values, consists of a detachable body 11, membrane 12, stem 9, springs 13, 14, balancing the effect on the pressure pulse membrane 12 R out

The valve works as follows.

Controlled pressure R The extent is supplied to the subable cavity of the control mechanism, determining the position of the rod 9 with the bracket 8 to the gearing position with the lever 7, installed by the setting. The lever 7 must be held with a bracket 8.

In emergency enhancements and pressure drops R In the subable cavity over the adjustment limits, the rod 9 is moving 9 with a bracket 8 left or right, the fluff 7 of the shut-off valve comes out of the engagement with the bracket 8. Under the action of the spring 6, the valve 2 overlaps the gas inlet.

Bringing the CPR to the working (open) position after the triggering is performed manually, turning the lever 7 to engagement with the bracket 8 with the steady controlled pressure R Out in the subable cavity of the control mechanism.

The KPZ-H valve differs from the KPZ valve-in springs 13, 14 and the membrane 12 of the control mechanism.

1 - body; 2 - saddle; 3 - valve; 4 - lever; 5 - axis; 6 - valve spring; 7 - valve lever; 8 - bracket; 9 - rod; 10 - control mechanism; 11 - Corps of the control mechanism; 12 - membrane; 13 - large spring; 14 - Spring small; 15 - reg. Screw large spring; 16 - Reg. Screw with small springs; 17 - bracket; 18 - bracket; 19 - screw; 20 - Bracket

Protectory-shuty valve bullpen applied to protect gas system and preventing the risks of fire and explosions, but it works with cutting off gas supply in cases without heating the pipeline, but its depressurization or other damage. Valves safety shut-off bullpen Equipped with a complex mechanism with springs calculated on a certain spectrum of pressure values. When the spring pressure is exceeded or decreasing, the valve opening closes and thereby block the gas supply.

Valves bullpen Used to protect non-natural gas transportation systems, but also other gaseous and liquid media with a significant range of performance. In this case, the safety shut-off valves of the KPZ in most cases are used on pipelines with small diameters. This is explained by the fact that with significant diameters of pipelines, the pressure of the working medium in it is also large, therefore, it is necessary to provide an even greater control force to control the valve - otherwise, planting the shutter on the housing saddle may not be sealed.

CPZ valves: construction and principle of operation

The main working element of the Safety-valve valve of the KPZ is a working element located in the steel case. In addition, the design of the KPZ valve form a membrane with a rod as a mechanism for controlling pressure difference, axis, leverage, springs and tip. The lever mechanisms for controlling the gas safety valve can be located both on the left and right in the direction of the flow of the working medium.

When the working pressure in the cavity of the control mechanism is within the normal range, the tip is in the middle position. When the pressure changes beyond the boundaries of the established limits (increase or drop), the tip is shifted to the appropriate side, while freeing the focus of the lever. As a result, the levers are released from mutual engagement, the axis turns and thus causes the closing of the working element (valve). Bringing the valve to the open position is carried out only manually after eliminating the cause of pressure output from the operating range.

How to Buy Valves KPZ

In the catalog of the company "PKF" Spetsomplektpribor "preservative shut-off valves The KPZ with the diameters of the DU 50 and 100 mm are presented in the modifications of the KPZ-H, KPZ-C and KPZ-B, corresponding to the versions on low, average and high pressure. Based climatic execution Safety-stop valves of the KPZ, their operation is possible in temperature range ambient (-45 ° C to + 40 ° C).

Deciding with the optimal modification of the CPR valves to solve your needs, then you can buy a safety lock valve in required quantity Either through the basket, after completing the minimum necessary contact information, or directly by contacting our managers.