Gate
Valves

Size 2 to 24 | Class 150 to 900

DESIGN SPECIFICATIONS
ITEM APPLICABLE STD
Design Standard API 600 ISO 10434 BS414
Face-to-Face Dimensions ASME B16.10
Testing Standard API 598 BS 6755
Flange Design ASME B16.5
Butt Welding Design ASME B16.25
Materials ASTM
Pressure-Temperature Rating ASME B16.34

Design Features

Trims 13 Cr stem-wedge in CA 15 or 13 Crfaced, and Co-Cr alloy faced seat API trim 8 suitable for applications up to 850 F 454 C

Flexible wedge with centre stem-wedge contact in solid CA15 13 Cr or hand faced with 13 Cr, SS 316 Monel or Co-Cr alloy. Wedge is ground and lapped to a mirror finish and tightly guided to prevent dragging and seat damage.

Non-rotating stem with precision acme threads and burnished finish. Double acme for faster operation.

Body and bonnet joint accurately machined. Spiral wound Gasket with different grade of material which can withstand high temperatures and pressures, preventing leaks throughout their intended life span.

Body and bonnet casting are precision machined. One-piece bonnet up to NPS 12 DN 300 for better alignment and fewer parts.

Flanges Finish 125-250 AARH for all valves, ASME Classes 150-300 2mm raised face
ASME Classes 600-up 7mm raised face

RTJ available on client requirement.

STANDARD MATERIALS
No. Part Name Carbon Steel ASTM Material
1 Body A216-WCB A217-WC6
2 Bonnet A216-WCB A217-WC6
3 Wedge A216-WCB CR13 A217-WC6 HF
4 Stem A182-F6a CR-MO-V
5 Seat ring A105 CR13 A182-F1 HF
6 Stem Basket A276-420 A276-304
7 Bonnet Gasket Spiral Wound Graphite 304
8 Body Bonnet Stud A193-B7 A193-B16
9 Body Bonnet Nut A194-2H A194-7
10 Packing Graphite Graphite
11 Gland A276-420 A276-304
12 Gland Flange A216-WCB A217-WC6
13 Eye Bolt Pin Carbon Steel A276-420
14 Eye Bolt Carbon Steel A193-B7
15 Eye Bolt Nut Carbon Steel A194-2H
16 Grease Fitting - Brass Steel
17 Yoke Sleeve - Aluminium - Bronze
18 Yoke Sleeve Jam Nut - Carbon Steel
19 Hand Wheel Carbon Steel Malleable Iron
20 Hand Wheel Nut - Carbon Steel