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QUALITY SYSTEM

QUALITY ASSURANCE PROGRAM

Based on: ISO 9001:2008 and API Q1 codes.

The PISHGAM is sincerely committed to supplying Quality Assured products throughout

the petrochemical and process industries. The fine reputation and position in the industry

enjoyed by this company is wholly attributed to a rigid adherence to all aspects of Quality

Control and Assurance.

It is the intent of PISHGAM to provide our customers with products of genuine quality. These products will be manufactured in strict compliance with all Code requirements and standards of quality and all customer specifications which are accepted by PISHGAM as a part of the customer Purchase Order.

INSPECTION

The Quality System of PISHGAM is based on our Quality Manual.

The PISHGAM Quality Control Department verifies all processes from material receipt to final customer inspection.

All products can be supplied with certified test reports which include pressure testing, NDT and chemical and physical analysis, along with any other specified special test certifications.

The material certification of the valve parts can be furnished in accordance with EN 10204/3.1.B (at least) or 3.1.C.

TEST PROCEDURES

Production testing is necessary to ensure that the product being shipped to the customer will offer the rated performance and meet the requirements of various regulator codes. PISHGAM Co. conducts his own test and inspection of the assembled ball valve in the presence of the customer’s inspector. The first step is a hydrostatic shell test of production ball valves. Valves are closed off and the ball placed in partially open position during the test. This gives a qualification of 1.5 times the pressure rating of the body at 100°F and located any defects that may occur during the casting of manufacturing of the ball valve.

The second production qualification is a hydrostatic seat of production ball valves. This gives a qualification of 1.1 times the pressure rating of body at 100°F. This test is performed by applying the pressure inside the assembled ball valve with the valve closed and any packing gland tight enough to maintain the test pressure, there by, except for bellows seal valves, testing the stuffing box.

The optional production qualification is a bi-directional 80 psi air test in which the valve is submerged in water and pressurized. This qualifies the seat and the stem seal, for zero bubble leaks.

Fire testing of PISHGAM ball valve is according to the API 6FA.

The basis of fire test is that a pressurized ball valve must operate after being burned at a specified high temperature for a specified period and leakage after burning (which will destroy soft seals) must remain within specified limits.

The broad object of a fire test is to establish acceptable levels of leakage after exposure to a fire for 30 minute, time period.

This allows the user to select a valve best suited for a particular service.

Special Tests

If specified by the purchaser, the following different tests can be performed to verify valve properties and performances, to verify material chemical composition or mechanical properties, to qualify valves to special working conditions or to long working life:

VALVE TESTS

  • Pressure test at high/low temperatures
  • High pressure seat gas test in accordance with Annex C of API 6D
  • On customer request pressure tests can be performed in accordance with other standards like API 598 and EN 12266-1
  • Anti-static test
  • Torque test. Torque value is verified during this test as well.
  • Functional valve test or functional valve and actuator test.
  • Paint dry film thickness check
  • Insulating coat testing by holiday detector ISOLTEST HD93
  • Cavity relief test

NON DESTRUCTIVE MATERIAL TESTS

All tests performed by qualified personnel

  • Radiographic examination (RT), X-Ray or Gamma-ray
  • Magnetic particle examination (MT)
  • Ultrasonic examination (UT)
  • Dye penetrant examination (DP)
  • Positive material identification (PMI)
  • Hardness test

DESTRUCTIVE MATERIAL TESTS

  • Corrosion tests (e.g. Pitting, SSCC, Huey, Crevice)
  • Hydrogen-inducted cracking test (HIC)
  • Pull-off test for paint adhesion check

QUALIFICATION TESTS

  • Fire tests
  • High pressure gas tests
  • High and low temperature tests
  • Cycle operational and pressure test