FCS019 Forged Steel Needle Valve (Socket Weld)

FCS019
  • Item Code: FCS019
  • Pressure Rating: CL-800
  • Testing Standard: API-598, BSEN 12266 Part-1
  • Size Range: 15mm to 50mm
  • Product Standard: API 602, BSEN ISO 15761

Suitable For

FCS019

Material Specification

S. No. PART NAME CARBON STEEL ALLOY STEEL STAINLESS STEEL
1 BODY A105 A350 LF2 A182 F5 A182 F11 A182 F22 A182 F9 A182 F304 A182 F316 A182 F304L A182 F316L
2 SEAT RING ASTM A276 TYPE 410 SS 304 SS 410 SS 410 SS 410 SS 410 SS 304 SS 316 SS 304L SS 316L
3 DISC ASTM A217 Gr. CA15 / ASTIM 276 TYPE 410 SS 304 CA15 / SS410 CA15 / SS410 CA15 / SS410 CA15 / SS410 SS 304 SS 316 SS 304L SS 316L
4 GASKET SPIRAL WOUND STAINLESS STEEL GRAPHOIL FILLER
5 BONNET A105 A350 LF2 A182 F5 A182 F11 A182 F22 A182 F9 A182 F304 A182 F316 A182 F304L A182 F316L
6 STUDS A193 B7 A320 L7 A193 B7 A193 B7 A193 B16 A193 B16 A193 B8 A193 B8 A193 B8 A193 B8
7 PACKING FLEXIBLE GRAPHITE
8 GLAND A182 F6a SS 304 A182 F6a A182 F6a A182 F6a A182 F6a SS 304 SS 316 SS 304L SS 316L
9 GLAND FLANGE A105 A350 LF2 A182 F5 A182 F11 A182 F22 A182 F9 A182 F304 A182 F316 A182 F304L A182 F316L
10 NUTS A194 2H A194 Gr.4 A194 2H A194 Gr.4 A194 Gr.4 A194 Gr.4 A194 Gr.8 A194 Gr.8 A194 Gr.8 A194 Gr.8
11 STEM ASTM A276 TYPE 410 SS 304 SS 410 SS 410 SS 410 SS 410 SS 304 SS 316 SS 304L SS 316L
12 YOKE SLEEVE ASTM A582 TYPE 416
13 HAND WHEEL DI.A536 Gr. 80-55-06
14 HAND WHEEL RETAINING NUT STEEL

Dimensional Data

FCS019
 
SIZE (mm) 15 20 25 32 40 50
L 80 88 100 124 145 170
∅b 5 6.5 8.5 12 15 18.5
~∅HW 82 90 96 114 155 155
~H 140 155 172 198 235 270
C 17 18 21 21 23 24
Rc 1/2" 3/4" 1" 1-1/4" 1-1/2" 2"
∅SW AS PER ASME B16.11 22.2 27.6 34.3 43.1 49.2 61.7
21.8 27.2 33.9 42.7 48.8 61.2
D 11 14 14 14 14 17

Principle Features

INTRODUCTION 

Leader forged steel Needle (Regulating) valve offers renewable seat by default with rising stem and hand wheel. It blocks the flow of pipeline through the rotation and lifting of hand wheel as well as stem to drive the lift of disc. There is no relative friction between disc and body sealing surface. The Needle (Regulating) valves have the feature of long service life for opening and closing, can be used as a shut-off valve for small-size pipelines.

  • Design Std.: API 602/ BSEN ISO 15761
  • Pressure Temperature Rating as per ASME B16.34, BSEN ISO 15761
  • Sturdy design for high-pressure & temperature service
  • Bolted body-bonnet design, Valves with welded bonnet also available on request.
  • Bolted body-bonnet joints provided with spiral-wound stainless steel gasket and graphite filler for protection against leaks.
  • Die-formed graphite inner packing rings and braided graphite end rings with Inconel wire reinforcement and corrosion inhibitor.
  • Tapered shoulder on the stem for back seating.
  • Self-aligning type gland assembly with stud-and-nut tightening
  • Socket welded ends as per ASME B16.11
  • Screwed Female Taper ends as per ASME B1.20.1 (NPT) / BS 21 & Screwed Female Parallel ends as per ISO 228 / BS 21 available on request.
  • Butt weld ends as per ASME B16.25 available on request.
  • Valves can be offered with electrical actuators on request.
  • Low-Temperature Carbon Steel & Austenitic SS forging for body and bonnet with extended bonnet design qualified as per BS 6364 for Cryogenic service available on request.
  • Valves can be offered to NACE MR-0175 and other special NACE requirements.
  • Valves are available with IBR certification.
  • Low Emission, FET-qualified valves as per API 624 / ISO 115848-1 can be offered with API 622 (FET), API 607 (Fire Safe) qualified gland packing.

TEST PRESSURE(Hydrostatic)

Rating CL-800
Body (Hyd.) 207 Bar
Seat (Hyd.) 152 Bar
Seat (Air) 6.9 Bar

END CONNECTION:

  • Socket Weld / Screwed ends / Butt Welded ends.

WORKING PRESSURE:

  • Maximum working pressure 138 Bar.

TEMPERATURE LIMITS:

  • Maximum working temperature 425°C.

TRIM MATERIAL COMBINATION (ON REQUEST)

Trim No. Seat Ring Face Wedge Seat Face Stem Backseat Bush Lantern Ring
2 F304 F304 F304/AISI304 F304/AISI304 F304/AISI304
5 STELLITE(#6) STELLITE(#6) F6a/AISI410 F6a/AISI410 F6a/AISI410
8 STELLITE(#6) F6a/13%Cr. F6a/AISI410 F6a/AISI410 F6a/AISI410
9 MONEL MONEL MONEL MONEL MONEL
10 F316 F316 F316/AISI316 F316/AISI316 F316/AISI316
12 316+Stellite(#6) 316 F316/AISI316 F316/AISI316 F316/AISI316
13 ALLOY 20 ALLOY 20 ALLOY 20 ALLOY 20 ALLOY 20
 

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