Y Pattern Check Valve, API 602, ISO 15761, ASTM A105N, 1 IN

We produce high-quality Y pattern check valves that meet API 602 and ISO 15761 standards. These valves are forged from carbon steel ASTM A105N, ensuring durability and reliability. With a 1-inch size and a pressure rating of Class 800 LB, they are designed for low leakage and feature a bolted bonnet and threaded ends for secure installation. These check valves are ideal for applications requiring precise flow control and minimal backflow.

Product Name: Y Pattern Check Valve, Bolted Bonnet
Design Standard: API 602, ISO 15761
Body Material: ASTM A105N
Size: 1 Inch, DN25
Pressure: Class 800 LB, PN130
End: Threaded

Product Range

Size Range: NPS 1/2-6 Inch, DN15-DN150
Pressure Range: Class 150-4500 LB
Body Material: ASTM A105, A105N, A350 LF2, A182 F11, F22, F91, F304/304L, F316/316L, F321, F347, F51, Monel, Inconel etc.
Product Structure: Bolted Bonnet (BB), Welded Bonnet (WB), Pressure Seal Bonnet (PSB)

Applicable Standards

Design: API 602, ISO 15761, ASME B16.34
Inspection & Testing: API 598
Marking: MSS SP-25
P/T Rating: ASME B16.34
Face to Face: ASME B16.10
End to End: Manufacturer Std or ASME B16.10
Socket Welding: ASME B16.11
Screwed Ends: ASME B1.20.1
Flanged: ASME B16.5
Butt Welding: ASME B16.25

The packing used in forged valves is the M800 series graphite packing,

with a graphite carbon content exceeding 99% and a sulfur content below 50 PPM.

The dynamic leakage rate, as tested according to API 622, is less than 12 PPM.

The static leakage rate is below 6 PPM.

All the gaskets used are low-emission gaskets certified by TÜV Rheinland TA-LUFT.

                                    Type Test Report for 2-Inch Gate Valve

                                    According to ISO 15848-1 at 400°C

                                    Type Test Report for 1-Inch Globe Valve

                                    According to ISO 15848-1 at 400°C

                                    Type Test Report for 3/4-Inch Gate Valve

                                    According to ISO 15848-1 at 400°C

The 0.5-inch forged steel gate valve in accordance with API 602 is tested for an ISO 15848-2 Class A leakage rate below 50 PPMV, using the M600 model low emission packing.

The 1-inch forged steel gate valve, in accordance with API 602, is tested for an ISO 15848-2 Class A leakage rate of less than 50 PPMV, using the M600 model low-emission packing.

The 1.5-inch forged steel globe valve, in accordance with API 602, is tested for an ISO 15848-2 Class A leakage rate of less than 50 PPMV, using the M800 model low-emission packing.

The API 624 test for a 2-inch forged steel gate valve in accordance with API 602 uses the M600 model low-emission packing.