butterfly valves

�� www.ptpa.ru

Butterfly Valves

BUTTERfLy VALVESDN 400 (16˝)...1200 (80˝) mm, PN 0,25 (2,5); 1,0 (10); 1,6 (16); 2,5 (25) МPа (bar)

Used as stop valves for pipelines transporting: - water, vapor and other nonflammable, non-explosive and non-toxic media (Water) at the temperature below +100ºC (at the temperature

up to +250ºC if requested by the Customer).The butterfly valves can be manufactured for oil pipelines as per Customer requirements.

APPLICATION

CONSTRUCTIONS RANgE TABLE

1. Highly wear-resistant overlay in the seats extends the valve’s service life.2. Sealing ring installed in the disc facilitates replacement of the ring without full disassembly of the valve.

�

�

�

�

DESIgN fEATURES

www.ptpa.ru ��

Butterfly Valves

ACTUATIONManual or electric drive. When desired by Customer the gate valves may be completed with electric drives of Russian or international

manufacturers (AUMA, ROTORK, LIMITORQUe, FeSTO, etc).

TIghTNESSThe closure sealing is “metal-to-fluoroplastic /rubber/teflon” type.

MOUNTINg IN ThE PIPELINEMounting in the pipeline – disc pivot in horizontal position. Line medium flow – under disc. Connection to the pipeline – flanged or wafer type (between pipeline flages). When required by Customer, flanged valves may be

supplied complete with connection accessories (flanges, gaskets, fasteners).

CLIMATIC SERVICE CONDITIONSAmbient temperature range: – 40 °C to + 50 °C.

Complete set of supply includes: butterfly valve, butterfly valve certificate, technical manual and service guide. Electric actuator, mating flanges with fasteners and gaskets are supplied when required by Customer.

COMPLETE SET Of SUPPLy

3. Flange connections of the regulators simplify installation and takedown of the valves.4. Spline joint between the disc and the shaft provides longer operating life compared to the conventional key joint.5. The valve design incorporates grease injectors that supply lubricants to the bearing assembly of the shaft or the disc and extend

operating life of the product. Maintenance frequency – once a year, lubricant ВНИИНП-323 (GOST 14068-79) or ЦИАТИМ-221 (GOST 9433-80) or any other grease approved by vendor.

6. The yoke is featured with roller bearings decreasing the effort of the actuator and facilitating valve operation. 7. The regulators have smaller dimensions and weight (compared to other industrial valves designed for similar working media) that enable to use these valves in narrow spaces and with minimum number if supports for the pipeline.

�� www.ptpa.ru

Butterfly Valves

n mat. d

RATED PRESSURE PN 1,0 (10) МPа (BAR)INTERNAL DIAMETERS DN 400 (16˝), 500 (20˝), 600 (24˝), 800 (32˝), 1000(40˝) ММ

DIMENSIONS AND DRAwINgFig. 1 Fig. 2

Fig. 3

MATERIALS When required by Customer butterfly valves may be produced of corrosion-resistant steel. Cadmium or zinc coating is available

for tropical versions.

* Note: the table contains weights of butterfly valves complete without electric drives.

www.ptpa.ru ��

Butterfly ValvesRATED PRESSURE PN 1,6 (16) МPа (BAR)INTERNAL DIAMETERS DN 400 (16˝), 500 (20˝), 600 (24˝), 800 (32˝) ММ

MATERIALS

DIMENSIONS AND DRAwINgFig. 2Fig. 1

When required by Customer butterfly valves may be produced of corrosion-resistant steel. Cadmium or zinc coating is available for tropical versions.


16 www.ptpa.ru

Butterfly ValvesRATeD PReSSuRe PN 1,6 (16) МPа (BAR)INTERNAL DIAMETERS DN �000 (�0˝), 1200 (48˝) ММ

MATERIALS

DIMENSIONS AND DRAwINg

Fig. 1

Fig. 2А


B


www.ptpa.ru 17

Butterfly ValvesRATED PRESSURE PN 2,5 (16) МPа (BAR)INTERNAL DIAMETERS DN 400 (16˝), 500 (20˝), 800 (32˝) ММ





18 www.ptpa.ru

Butterfly ValvesRATeD PReSSuRe PN 0,25 (2,5) МPа (BAR)INTeRNAL DIAMeTeRS DN 1400 (56˝), 1600 (64˝), 2000 (80˝) ММ

MATERIALS




www.ptpa.ru ��

Butterfly Valves

TRICENTRIC METAL SEATED BUTTERfLy VALVEDN 400 (16˝) mm, PN 1,6 (16)...4,0 (40) МPа (bar)

APPLICATIONUsed as stop valves for pipelines transporting hot steam, light oil products, liquid and gaseous fluids, aggressive and non-aggressive

media, containing high concentration of H2S and CO2, at the temperature reaching +425 C.

CONSTRUCTIONS RANgE TABLE

DESIgN fEATURES�

�

1. Tri -centric design of the disc results in lower torque compared to standard design.

2. “Metal-to-metal” seats extend service life of the valve.3. Demountable design of seat/disc and easy seal replacement

provide high level of maintainability.

Simple and convenient valve design ensures extended service life of the element.

The regulators have smaller dimensions and weight (compared to gate valves for similar working media) that enable to use these valves in narrow spaces and with minimum number if supports for the pipeline.�

ThE TRIPLE-OffSET gEOMETRyOffSET �: The shaft is offset behind the seat axis to allow

complete sealing contact around the entire seat.OffSET 2: The shaft centerline is offset from the pipe and valve

which provides interference free opening and closing of the valve.

OffSET 3: The seat cone axis is offset from the shaft centerline to eliminate friction during closing and opening and to achieve uniform compressive sealing around the entire seat.

�0 www.ptpa.ru

Butterfly Valves

ACTUATIONManual or electric drive. When desired by Customer the gate valves may be completed with electric drives of Russian or international

manufacturers (AUMA, ROTORK, LIMITORQUe, FeSTO, etc).

TIghTNESSComplete tightness (zero leakage) due to dependable metal-to-metal sealing.

MOUNTINg IN ThE PIPELINEMounting in the pipeline – disc pivot in horizontal position. Line medium flow – under disc. Connection to the pipeline – welded.

CLIMATIC SERVICE CONDITIONSAmbient temperature range: – 60 °C to + 50 °C.

Complete set of supply includes: butterfly valve, butterfly valve certificate, technical manual and service guide. Electric actuator, mating flanges with fasteners and gaskets are supplied when required by Customer.

COMPLETE SET Of SUPPLy



DIMENSIONS AND DRAwINg

butterfly valves

Documents