Safety valve Special full-dimensional spring with lever for control blowing type SPPK4R-16 (17C6NA)

Purpose of the product

It is intended to limit the pressure of non-aggressive gases by resetting the gas to the atmosphere to the established value when the pressure in the network is increased over the permissible limit. It is installed on medium and high pressure gas pipelines.

Specifications

	SPPK4R-50-16.	SPPK4R-80-16.	SPPK4R-100-16	SPPK4R-150-16.
Adjustable environment	Natural gas according to GOST 5542-87
The temperature of the work environment, ° C	from -40 to +600
Maximum working pressure, MPa	1,6	1,6	1,6	1,6
Regulation limits (using replaceable springs), MPa	0,05-1,6	0,05-1,6	0,05-1,6	0,05-1,6
D. At the connecting pipe, mm
input	50	80	100	150
Output	80	100	150	200
Saddle diameter, mm	30	40	48	75
Overall dimensions, mm	600 × 210 × 185	690 × 247 × 205	845 × 267 × 280	1055 × 345 × 315
Mass, kg, no more	29	40	53	94

Device and principle of operation

The inlet pipe of the valve (see Figure) is connected to the controlled area of \u200b\u200bthe gas pipeline after the pressure regulator. In the valve body, a spool is set to the spring 2 saddle, the force of which is controlled by the movement of the support washer 3 by rotating in the screw thread 4. With an increase in pressure in the inlet nozzle, the specified spool is slightly lifted, the gas pressure begins to operate on the entire surface of the spool, which is much larger than the central part, resulting in increasing static pressure, pressing the spool up. In addition, bevelled inside the surface of the edge of the spool deflects the flow of gas flowing from the saddle. With such a deflection of the flow, a reactive force is created, which is summarized with an already increased static pressure on the spool. The equilibrium between the spring force and the gas pressure on the spool is broken, and the spool is riveted to the extreme top position. When the pressure decreases in the gas pipeline, the gas pressure on the gaza cannot overcome the force of a compressed spring and the spool falls on the saddle, hermetically overlapping the gas flow. The valve is equipped with a lever 5 for forced opening.

The valve is safety, spring, full, two-position, flange, rated pressure of RU 1,6 MP, temperature from -40 to +425 degrees., With a mechanism forced opening (manual undermining). It serves protection of pipeline systems and assemblies from critical pressure, by reset to the set value and automatic return to the operating mode. The direction of flow of the working medium is under the spool (indicated on the body injection molding method, as pressure and diameter). Case material - steel 25l, the remaining parts - 20x13l, spring - steel 50хs. Sealing saddle - "NJ". Manufacturing program suggests the lineup Of the four sizes (in / out): DU50 / 80, DU80 / 100, DU100 / 150 and DU150 / 200 mm. The advantage of the model is the possibility of forced reset, which leads to some appreciation of the product due to the complication of the design. Operation according to GOST 15150-69 (from -40 to +40 degrees).

Warranty period The manufacturer sets 1 year from the moment of commissioning and three years of conservation. Lifetime of 15 years at 180 cycles of developments for failure.

If the customer has decided to buy 17c6zh in our company, then, if desired, the device is additionally completed with kof and fasteners.

Attention! Ordering the valve should be specified on what a trigger pressure we should configure the work spring.

Passport SPPK4R (17C6J) Sample.pdf

Photo 17c6j.jpg

Safety valve parts:

1. Cap;
2. Regulating screw;
3. Spring;
4. Cap;
5. Stock;
6. Manual lever;
7. Spool;
8. Saddle;
9. Case.

17c6zh Specifications:

• Working medium: liquid and gaseous, petroleum products, hydrocarbons, ammonia and other weakly aggressive media, neutral to the materials of the device;
• Rated pressure RU: 1.6 MPa (input), 0.6 MPa (output), 1.6 MPa (for DU150);
• Operating temperature: from -40 to +425 degrees;
• Section area FC, mm2: 855 (DU50), 1256 (DU80), 1809 (DU100), 4416 (DU150);
• Flow coefficient A1: 0.8 (gases), 0.5 (liquid);
• Permissible leaks in the gate, sm3 / min: 5 (DU50), 10 (DU80, DU100), 15 (DU150);
• Accession to the pipeline: flange, isp. 1 taking into account the pressure (see above), according to GOST 12815-80;
• Case material: Steel 25l;
• Climatic execution: U1;
• Control: Automatic (reset medium pressure), manual (lever).

Dimensions and weight (see drawing):

Valve model	Dimensions, mm.				Weight, kg
	D.	L.	L1.	H.
SPPK4R 50-16	102	130	155	603	29
SPPK4R 80-16.	133	150	175	680	40
SPPK4R 100-16	158	160	200	788	53
SPPK4R 150-16	212	205	245	925	94

Pressure setting 17c6nzh (springs numbers)

Du50	Du80.	DU100.	DU150
0,5-1,2 (10)	0,5-1,2 (30)	0,5-1 (50)	0,5-1,5 (70)
		0,8-1,6 (51)	1,5-3 (71)
1,2-2,5 (11)	1,2-3 (31)	1,5-3 (52)	3-5 (72)
2,5-4 (12)	3-5 (32)	2,5-4,5 (53)	5-8 (73)
4-8 (13)	5-8 (33)	4,5-8,5 (54)	8-12 (74)
8-16 (14)	8-16 (34)	8-16 (55)	12-16 (75)

Price 17S6NG Manufacturer - Russia, does not depend on settings.

Installation 17c6

• delivery of the product to the place of installation is made in the manufacturer package;
• before mounting, make a decollection, that is, remove the protective plugs, remove the factory lubricant, and wash all cavities with solvent;
• for rigging work, use the main flanges of outputs and the surface of the device body;
• installation strictly cap up;
• the direction of movement of the medium is indicated by the arrow on the housing;
• before starting to work in the system, all devices must be open and the system is purged and washing;
• eliminate the possibility of any load on the product from the pipeline (providing supports, suspensions, etc.);
• The installation site should be available for inspection, if necessary, manual reset (which is provided for by the design) and regulatory work.
• At the end mounting work Fix the appropriate act of the launch date and the installation organization that has been installed.

Valves Spring Spring Speed \u200b\u200bSPPK4,SPPK4R The direction of supply of the medium is under the spool. The force of a compressed spring presses a spool to the saddle, when the pressure of the working medium is exceeded above the mounted value, the opposite force acts onto the spool, which compresses the spring and opens the passage for resetting the working medium. After reducing the pressure in front of the valve to the pressure of the return plant, the spool under the action of the spring force is pressed again to the saddle, stopping the reset.

Safety valves are intended for liquid and gaseous, chemical or oil workers. The norms of tightness in the gate according to GOST 9789-75.

Safety valves are designed to protect equipment from unacceptable exceeding the prescribed pressure. Used in tanks, boilers, tanks, vessels and pipelines to automatically reset the working medium into the atmosphere or a discharge pipeline. After reducing the pressure to the desired limit, the safety valve stops resetting the environment. Calculation of bandwidth is made according to GOST 12.2.085.

the valves are labeling type SPPK4R-100-16, where the alphanumeric designation means the following:

SPPK - Special Spring Safety Valve;

4 - valve modification number;

P - denotes the presence of a manual dubler lever (in its absence, the letter is not specified);

100 - Conditional passage at the inlet in mm (DN);

16 - working pressure in kgf / cm2 (PN);

Safety valves according to the traditional "table of figures" have a conditional designation of type 17c17nzh or 17c25nzh, where:

17 - designation type fittings - safety valve;

c is the designation of the material of the valve housing (steel 20l);

17 or 25 - the conventional numbers denoting the valve modification number;

nJ - designation of valve seat material.

Valves of types of SPPCs and SPPCs4r refer to the full-dimensional spring safety valves of the two-position operation of the closed type, but they work as full-dimensional on gaseous (vapor-shaped) media. When working on liquid (incompressible) environments bandwidth Valves type SPPK and SPPK4R 4-8 times less than when working on gaseous media.

Safety valves for checking the health and purge in the working condition of the SPPK4R type valves have a special lever for manual opening device "manual undermining". The valves of the SPPK4 type is missing.

Spring Flanged Safety Valves made of steel 20l with adaptation tool

Working medium - water, air, couples, ammonia, natural gas, oil, petroleum products, liquid and gaseous hydrocarbons and mediums are not aggressive to steel 20l, with a temperature of minus 40c to plus 425c. Minimum temperature ambient air during operation minus 40s.

Designation, Type, Table. figs
SPPK4R 50-16 17S6J.
SPPK4R 80-16 17S6J.
SPPK4R 100-16 17C6J.
SPPK4R 150-16 17S6J.
SPPK4R 200-16 17c17nzh
SPPK4R 25-40 17S25NZH
SPPK4R 50-40 17S21NZH
SPPK4R 80-40 17c21nzh
SPPK4R 100-40 17S21NZH
SPPK4R 150-40 17S21NZH
SPPK4R 50-63 17S89NZH
SPPK4R 80-63 17c89nzh
SPPK4 50-160 17c90nzh
SPPK4 80-160 17c90nzh

Safety Spring Flange Safety Valves made of steel 20l without adaptation forced opening

Climatic execution - U1 GOST 15150;

Appointment and scope - for automatic release of the medium with an increase in pressure over the installed;

Working medium - water, air, steam, ammonia, natural gas, oil, petroleum products, liquid and gaseous hydrocarbons and mediums, non-aggressive to steel 20l, with a temperature of minus 40c to plus 425c. The minimum ambient temperature during operation is minus 40s.

Designation, Type, Table. figs
SPPK4 50-16 17c7nzh
SPPK4 80-16 17c7nzh
SPPK4 100-16 17c7nzh
SPPK4 150-16 17c7nzh
SPPK4 200-16 17c13nzh
SPPK4 25-40 17c14nzh
SPPK4 50-40 17c23nzh
SPPK4 80-40 17c23nzh
SPPK4 100-40 17c23nzh
SPPK4 150-40 17c23nzh
SPPK4 50-63 17c85nzh
SPPK4 80-63 17c85nzh
SPPK4 50-160 17С80NZH
SPPK4 80-160 17С80NZH

Valves Spring Flanges from steel 12x18H9Tl with adaptation forced opening

Climatic execution - UHL1 according to GOST 15150;

Appointment and scope - for automatic release of the medium with an increase in pressure over the installed;

Designation, Type, Table. figs
SPPK4R 50-16NG 17NZH17NZH
SPPK4R 80-16NG 17NZH17NZH
SPPK4R 100-16NG 17NZh6NZH
SPPK4R 150-16NZH 17NZH6NZH
SPPK4R 200-16NZH 17NZH17NZH
SPPK4R 25-40NG 17NZh25NZH
SPPK4R 50-40NG 17NZH25NZH
SPPK4R 80-40NG 17NZh25NZH
SPPK4R 100-40NG 17NZH21NZH
SPPK4R 150-40NG 17NZH21NZH
SPPK4R 50-63NZH 17NZh89NZH
SPPK4R 80-63NG 17NZh89NZH
SPPK4R 100-63NZH17Nzh89nzh
SPPK4R 50-160NZh17Nzh90nzh
SPPK4R 80-160NZh17Nzh90nzh

Spring Flanged Safety Valves from steel 12x18n9Tl without fixture for forced opening

Climatic execution - UHL1 according to GOST15150;

Appointment and scope - for automatic release of the medium with an increase in pressure over the installed;

Working medium - water, air, steam, ammonia, natural gas, petroleum products containing hydrogen sulfide to 0.1%, liquid and gaseous hydrocarbons, petrochemical media with a temperature of minus 60C to plus 600c. Minimum ambient temperature minus 60c.

Designation, Type, Table. figs
SPPK4 50-16nzh 17nzh13nzh
SPPK4 80-16nzh 17nzh13nzh
SPPK4 100-16nzh 17nzh7nzh
SPPK4 150-16nzh 17nzh7nzh
SPPK4 200-16nzh 17nzh13nzh
SPPK4 25-40NG 17NZH14NZH
SPPK4 50-40nzh 17nzh14nzh
SPPK4 80-40NZH 17NZH14NZH
SPPK4 100-40NG 17NZH23NZH
SPPK4 150-40NG 17NZH23NZH
SPPK4 50-63nzh 17nzh 85nzh
SPPK4 80-63nzh 17nzh85nzh
SPPK4 100-63NZH 17NZh85NZH
SPPK4 50-160 nzh 17NZh80NZH
SPPK4 80-160 nzh 17NZh80NZH

When ordering safety valves, you must specify:

Product name, designation;

Size nominal (conditional pass) (DN, mm);

Nominal (conditional) pressure (PN, kgf / cm2);

Opening start pressure (pH, kgf / cm2) or springs number;

Execution by material;

The need for a device for manual opening.

Order Valves Safety Spring Spring SPPC4, SPPK4R, Delivery Timing You can use the order form or contact information. On request, provide: scheme, passport, certificate, permission.

print version

Safety valve Special full-dimensional spring with lever for control blowing type SPPK4R-16 (17C6NA)

It is intended to limit the pressure of non-aggressive gases by resetting the gas to the atmosphere to the established value when the pressure in the network is increased over the permissible limit. It is installed on medium and high pressure gas pipelines.

Specifications

	SPPK4R-50-16.	SPPK4R-80-16.	SPPK4R-100-16	SPPK4R-150-16.
Adjustable environment	natural gas according to GOST 5542-87
The temperature of the work environment, ° C	from -40 to +600
Maximum working pressure, MPa	1,6	1,6	1,6	1,6
Regulation limits (using replaceable springs), MPa	0,05-1,6	0,05-1,6	0,05-1,6	0,05-1,6
D. At the connecting pipe, mm
input	50	80	100	150
output	80	100	150	200
Saddle diameter, mm	30	40	48	75
Overall dimensions, mm	600 × 210 × 185	690 × 247 × 205	845 × 267 × 280	1055 × 345 × 315
Mass, kg, no more	29	40	53	94

Device and principle of operation

The inlet pipe of the valve (see Figure) is connected to the controlled area of \u200b\u200bthe gas pipeline after the pressure regulator. In the valve body, a spool is set to the spring 2 saddle, the force of which is controlled by the movement of the support washer 3 by rotating in the screw thread 4. With an increase in pressure in the inlet nozzle, the specified spool is slightly lifted, the gas pressure begins to operate on the entire surface of the spool, which is much larger than the central part, resulting in increasing static pressure, pressing the spool up. In addition, bevelled inside the surface of the edge of the spool deflects the flow of gas flowing from the saddle. With such a deflection of the flow, a reactive force is created, which is summarized with an already increased static pressure on the spool. The equilibrium between the spring force and the gas pressure on the spool is broken, and the spool is riveted to the extreme top position. When the pressure decreases in the gas pipeline, the gas pressure on the gaza cannot overcome the force of a compressed spring and the spool falls on the saddle, hermetically overlapping the gas flow. The valve is equipped with a lever 5 for forced opening.