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Piston Valve

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Piston Valve

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Special Features:
Marck PISTON VALVE is energy energy-saving isolation valve, preventing all types of valve leakages & increasing the life of the valve. It is glandless & Seat less, so it gives relief from the problems associated with seat & gland packings.
The Heart of the Marck piston valve is Piston & sealing rings. A burnished piston against Stainless steel reinforced graphite rings gives leakproof shutoff, which ensures long life even at high temperatures up to 427 C Piston valve is operative friendly, which means with a little amount of effort, the valve can be operated. It eliminates the need for any valve key to tighten the valve.
Maintenance can be done easily & quickly. e. internals can be removed without removing the valve body from the main line. This minimizes the plant downtime In this way, the Marck Piston valve is the right solution for on-off operation not only for STEAM but also for THERMIC FLUIDS, AMMONIA, LPG, ACIDS, ALKALIS, etc

Technical Specification

Technical Data
MANUFACTURING STANDARD: HAWA/018
FACE TO FACE: DIN 3202(PART-1)
END CONNECTION: fLANGED ENDS TO DIN 2543(PN16)
INSPECTION AND TESTING STANDARD: HAWA/018

HYDROSTATIC TEST PRESSURE
BODY 24KG/cm2
SEAT 16KG/cm2

 

P NO Qty Nomenclature Material
1 1 BODY ASTM A216 Gr.WCB
2 1 BONNET ASTM A216 Gr.WCB
3 1 PISTON ASTM A217 Gr.CA15
4 1 LANTERN BUSH ASTM A217 Gr.CA15
5 2 PISTON RINGS CAT
6 1 STEM 13Cr STEEL TO AISI 410
7 1 YOKE BUSH SG IRON TO BS2789
8 1 BONNET GASKET ASBESTOS FILLER SS304 SPIRAL WONDED
9 Req BONNET STUDS ASTM A193 Gr.B7
10 Req BONNET NUTS ASTM A194 Cr.2H
11 1 HAND WHEEL DUCTILE IRON
12 2 WHEEL NUT & WASHER CARBON STEEL TO BS916

 

All Dimension are m M.M
SIZE 15 20 25 32 40 50 65 80 100 125 150
PORT 13 19 25 32 38 51 64 76 102 127 152
L FACE TO FORCE RF 130 150 160 180 200 230 290 310 350 400 480
øWH 127 127 175 175 200 200 250 250 350 350 400
øD 95 105 115 140 150 165 185 200 220 250 285
B 16 18 18 18 18 20 18 20 20 22 22
øG 45 58 68 78 88 102 122 138 158 188 212
F 2 2 2 2 3 3 3 3 3 3 3
øJ 14 14 14 18 18 18 18 18 18 18 22
N 4 4 4 4 4 4 4 8 8 8 8
K:PCD 65 75 85 100 110 125 145 160 180 210 240

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