Features & Specifications 
. Design & Manufacture: API 602 
. Constructions: OS&Y Construction, Bolted Bonnet, Welded Bonnet & Pressure Sealed Bonnet 
. Back-seating, Renewable Seat Ring 
. Full Port / Conventional Port 
. Size Range: 1/4" to 4"N. B. 
. Pressure Ratings: ANSI 800, 900, 1500 & 2500 
MANUFACTURING STANDARDS | 
DESIGN | 
BS: 5352 / API 602 | 
ENDS | 
ANSI B 2.1 / BS 21 / IS 544 | 
TESTING | 
BS: 5146/ API 598/ BS 6755 PART 1 | 
CLASS | 
TEST PRESSURE IN Kg / cm 2 | 
HYDROSTATIC | 
AIR | 
BODY | 
SEAT/BACK SEAT | 
SEAT | 
800 | 
211 | 
141 | 
6 | 
Nominal diameter
 | 
Reduced port
 | 
mm(in) | 
8(1/4) | 
10(3/8) | 
15(1/2) | 
20(3/4) | 
25(1) | 
32(1? ) | 
40(1? ) | 
50(2) | 
- | 
Full port
 | 
mm(in) | 
- | 
- | 
10(3/8) | 
15(1/2) | 
20(3/4) | 
25(1) | 
32(1? ) | 
40(1? ) | 
50(2) | 
D | 
mm | 
8 | 
10 | 
11 | 
13 | 
18 | 
23 | 
28.5 | 
33 | 
43 | 
L | 
mm | 
79 | 
79 | 
79 | 
92 | 
111 | 
120 | 
152 | 
172 | 
220 | 
H (Open) | 
mm | 
166 | 
166 | 
166 | 
175 | 
206 | 
228 | 
262 | 
300 | 
340 | 
W | 
mm | 
100 | 
100 | 
100 | 
100 | 
125 | 
160 | 
160 | 
180 | 
240 | 
 
 
 
 No. | 
 PART | 
 MATERIAL |  
 
 1 | 
 Body | 
 ASTM A 105 |  
 
 2 | 
 Seat Ring | 
 S. S. AISI 410 |  
 
 3 | 
 Disc | 
 S. S. AISI 410 |  
 
 4 | 
 Spindle | 
 S. S. AISI 410 |  
 
 5 | 
 Gasket | 
 Spiral Wound, S. S. filled with Asb. |  
 
 6 | 
 Bonnet | 
 ASTM A 105 |  
 
 7 | 
 Bonnet bolt | 
 ASTM A 193 Gr. B7 |  
 
 8 | 
 Screw | 
 Carbon Steel |  
 
 9 | 
 washer | 
 Carbon Steel |  
 
 10 | 
 Gland packing | 
 Grafoil |  
 
 11 | 
 Gland | 
 S. S. AISI 410 |  
 
 12 | 
 Gland plate | 
 Carbon Steel Forged |  
 
 13 | 
 Eye bolt & nut | 
 Carbon Steel |  
 
 14 | 
 Yoke nut | 
 NI - Resists |  
 
 15 | 
 Hand Wheel | 
 Malleable Iron / Cast Iron |  
 
 16 | 
 H. W. Washer | 
 Carbon Steel |  
 
 17 | 
 H. Wheel Nut | 
 Carbon Steel | 
 |