Non_Return_Valve Non-Return Valve Non-Return_valve non-return valve
Non-Return Valve Non-Return Valve Non-Return Valve Swing Check Valve

Available in : Cast Iron, Cast Steel, Copper Alloy & Gun Metal.

CAST IRON NON-RETURN VALVES
SPECIFICATIONS :
Class/Pressure Rating
Test Pressure
Body
Seat
 

PN-16

24 Bar

16.0 Bar

CLl-125

24.1 Bar

13.8 Bar

SIZE RANGE :

All sizes from 1 - 1/2" to 12"
PRODUCT STD.:
BS: 5152 PN-16/ , CL-125.
MATERIAL :
Cast Iron to BS: 1452 Gr 220, IS: 210 Gr FG200. Other grades of materials can be provided on request.
TRIM :
Cu Alloy or Stainless Steel as per customer requirement.

END DETAILS :
Flanges of flanged valves can be:
(i) PN-16 of BS: 4505/ DIN 2533
(ii) ANSI: 16.1 CL. 125
(iii) IS: 1538

TYPES :
>>> For Globe Valves :
(i) Straight Patt
(iii) SDNR Type
(ii) Right Angle Patt
(iv) With plug/Needle  Disc
>>> For Check Valves (Non Return Valve) :
(i) Horizontal Check for Horizontal pipe line
(ii) Swing Type / Flap Type check valve for horizontal & vertical pipe line.

OPTIONAL FEATURES :
GlobeValves can be provided with gear operator, motor actuator, chain wheel arrangement, extension arrangement, open shut indicator, locking arrangementand special type of gland packing etc.

COPPER ALLOY NON-RETURN VALVES
SPECIFICATIONS :
Class/Pressure Rating
Test Pressure
Body
Seat
 

PN 16

24 Bar

17.6 Bar

PN 20

30 Bar

22.0 Bar

PN 25

37.5 Bar

27.5 Bar

CLASS 1

1.5 MPa

1.0 MPa

CLASS 2

2.4 MPa

1.6 MPa

SIZE RANGE :

All sizes from 3/8" (10mm) to 4" (100mm)
PRODUCT STD.:
BS: 5154 or IS: 778 as Specified.
MATERIAL :
Valve Body & Bonnet to BS 1400 LG2 or IS 318 LTB- as per applicable product standard.

END DETAILS :
>>> SCREWED : Female threads to BS:21 or IS:554.
>>> FLANGED : as per relevant table of BS: 4504 0r BS: 10. Other type of threads / flanges available on request.

BODY-BONNET :
Normally the body-bonnet connection is screwed in type.

CONNECTION :
Bolted bonnet, screwed on bonnet and union bonnet can be provided on request.

TYPES :
(i) Horizontal Check Valve for Horizontal pipe line.
(ii) Swing type/Flap type check valve for horizontal & vertical pipe line.
(iii) Vertical Check Valve for vertical pipe line.

OPTIONAL FEATURES :
>>> Open Shut Indicator, locking arrangements & special gland packing etc. on request.
>>> Valves as per ISI Specifications are available with BIS Mark.

STEEL NON-RETURN VALVES
SPECIFICATIONS :
Class/Pressure Rating
Test Pressure
Body
Seat
 
HYD.
HYD.
AIR

CLASS 150

30 Bar

22 Bar

6.9 Bar

PN-40

60 Bar

40 Bar

6.9 Bar

SIZE RANGE :

All sizes from 1 - 1/2" to 12"
PRODUCT STD.:
Class 150 0f BS: 1868 or PN-40 of BS: 5160.
MATERIAL :
Carbon Steel to ASTMA 216 Gr WCB. Other grades of materials can be provided on request.
TRIM :
Stainless Steel (Type 410, 304 or 316) as required. 13% Cr. trim, valves shall have hardness differential of 50 BHN, at seating portions subject to a minimum harness of 250 BHN. The seat faces can also be deposited with Co-Cr-A alloy (Stellite-6 or eqv.) in which case minimum 350 BHN hardness is maintained.

END DETAILS :
>>>FLANGED : as per CL-150 of ASME-16.5 or PN-40 of BS: 4504.
>>>BUTT WELDED : As per ANSI 16.25. As per relevant class of ASME 16.34

PRESSURE TEMP. RATING :
Pressure Temperature ratings shall be as per relevant class of ASME 16.34 / BS:5160.

OPTIONAL FEATURES :
Valves can be provided with resilient seats also.