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KK190

Technical specifications

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КК190

End valves shall comply with the requirements of TU U 35.2-02971676-013:2011,
SOU MPP 45.060-257 and the set of design documentation in accordance with specification
KK 190-Du 32.00.000.
The main parameters and dimensions of the valve are given in Table 1.

Table 1
Name of parameter and dimension, unit of measure — Value for end valve 190

Nominal bore diameter, mm – 32
Working pressure, MPa (kgf/cm²) – 0.2–1.0 (2–10)
Atmospheric port diameter, mm – 10

Connection thread:

on the main line side – G 1¼-B
on the hose side – G 1½-B

Overall dimensions, mm, not more than:

length – 282
width – 90
height – 143

Handle length, mm, not more than – 160
Weight, kg, not more than – 3.8

3. Functional performance indicators

3.1 Reliability indicators

3.1.1 The intended service life of the valves is at least 20 years. The actual service life of the valves is determined by their technical condition.

3.1.2 The intended service life (resource) is at least 30,000 cycles.

3.1.3 Mean time to failure is at least 9,000 cycles.

3.1.4 Valve bodies shall not fail (be destroyed) when tested at a pressure of at least 1.5 times the working pressure.

3.1.5 Failure criteria are loss of tightness at the shut-off member or at the joints.

3.1.6 Limit state criteria for the valves are destruction of the body, complete loss of tightness, or jamming of moving parts.

3.1.7 Valves type 190 shall retain operability in the temperature range from minus 60 °C to plus 60 °C, and also after short-term (no more than 4 hours) exposure to a temperature of plus 80 °C.

3.1.8 The valves shall be tight at a working compressed air pressure of
1.0 MPa [10.0 kgf/cm²].

3.1.9 Parts of the valves operating under pressure shall remain tight and strong when tested at a pressure 1.5 times higher than the maximum working pressure.

3.1.10 The shut-off member of the valves shall be tight at the minimum working compressed air pressure of 0.2 MPa [2.0 kgf/cm²].

3.1.11 The design of the end valves shall ensure an operating force on the handle within 100 N to 250 N at an air pressure of (1.0±0.2) MPa [(10.0±2) kgf/cm²].

3.2 Coating requirements

3.2.1 External and internal surfaces of the body and parts of the valve made of ferrous metal shall have a protective paint-and-lacquer coating. Delivery of valves in primed condition is permitted.

3.2.2 The type and grade of the coating shall be in accordance with the design documentation.

3.2.3 Preparation of metal surfaces for painting shall be carried out according to
DSTU ISO 12944-4 (ISO 12944-4, IDT).

3.2.4 Friction surfaces and machined surfaces shall be lubricated with grease. The grades of lubricants are specified in the drawings.

3.3 Design

3.3.1 The end valve KK190 consists of:

body;
union (nipple);
valve (shut-off element);
crank;
bush (bushing);
handle;
sealing ring;
cotter pins.

3.4 Requirements for materials

3.4.1 Materials used in the manufacture of the valves shall comply with current normative documents and TU U 35.2-02971676-013:2011. The quality of materials shall be confirmed by certificates of conformity (quality certificates) issued by the material manufacturers.

3.4.2 Valve bodies and unions shall be made of gray cast iron EN-GJL-200 according to DSTU EN 1561. Manufacture from cast iron EN-GJL-250 according to DSTU EN 1561 is permitted.

3.4.3 Valve handles shall be made of malleable cast iron EN-GJMB-300-6 according to DSTU EN 1562.

3.4.4 The valve and bush shall be made of steel grade 20 according to DSTU 7809. Manufacture from steels 15, 20, 25 according to DSTU 7809 is permitted.

3.4.5 The crank shall be made of steel 20L according to DSTU 8781. Manufacture from steel 25L or 15L according to DSTU 8781 is permitted.

3.4.6 Rubber-technical and polyurethane items shall be manufactured in accordance with the design documentation and comply with current normative documents.

3.4.7 Castings shall be cleaned of molding sand, scale and burn-on. Flash, fins, shrinkage cavities, risers and runners shall be removed by any method. The removal areas shall be cleaned or dressed.

3.4.8 Castings shall not have through defects, hot and cold cracks, shrinkage cavities and sink marks, or casting defects extending beyond the edge of the part.

4. Marking requirements

4.1 Marking shall comply with the requirements of TU U 35.2-02971676-013:2011, SOU MPP 45.060-257 and the design documentation.

4.2 Each valve, in accordance with the drawing requirements, shall bear the following marking symbols:

manufacturer’s trademark;
manufacturer’s code;
valve code (designation);
serial number of the product from the beginning of the year;
month and last two digits of the year of manufacture;
QCD (quality control department) stamp.

4.3 Marking shall be applied on the valve body by casting or stamping.

4.4 Marking shall remain legible throughout the entire service life of the valve.

5. Packaging

5.1 Packaging of the valves shall protect them from direct atmospheric precipitation, water splashes and solar ultraviolet radiation, and limit the ingress of dust, sand and aerosols. At the same time, damage to the valves during transportation and storage shall be prevented.

5.2 Surfaces of the valves not covered with paint shall be preserved with gun grease in accordance with applicable normative documents for it. The guaranteed storage period without re-preservation is one year from the date of manufacture.

5.3 Valve connection ports shall be closed with plugs, or each valve shall be wrapped in moisture-proof paper or paraffin paper in accordance with applicable normative documents for these materials. In this case, plugs are not inserted into the ports.

5.4 Preserved valves shall be packed in wooden boxes according to applicable normative documents. For manual handling of a box with valves, its weight shall not exceed 30 kg per person.

5.5 Shipped valves shall be accompanied by documents placed in a polyethylene film bag.

6. Completeness

6.1 The delivery set of the end valve 190 shall include:

complete valve assembly according to specification (KK 190-Du32.00.000);
passport (2 pcs. per batch of products delivered to one address);
quality certificate (for the batch of products).

6.2 The batch of valves supplied shall be accompanied by documents containing:

name and/or trademark of the manufacturer;
valve designation (code);
designation of TU U 35.2-02971676-013:2011;
manufacturing date (month, year);
shipment date;
quantity of valves in the batch.